تداخلات ليفوثيروكسين

Avoid abrupt withdrawal of beta-blockade, which may precipitate a thyroid storm. (نشرة بروبرانولول، التحذيرات والاحتياطات)

Patients suspected of developing thyrotoxicosis should be managed carefully to avoid abrupt withdrawal of beta-adrenergic blocking agents that might precipitate a thyroid storm. (نشرة بريمونيدين وتيمولول، التحذيرات والاحتياطات)

Patients suspected of developing thyrotoxicosis should be managed carefully to avoid abrupt withdrawal of beta-blockade which might precipitate a thyroid crisis. (نشرة بيندولول، التحذيرات)

People who have thyroid problems (hyperthyroidism) may have a higher chance of having a hypertensive crisis. (نشرة ترانيلسيبرومين، تحذير مؤطر)

WARNING: RISK OF THYROID C-CELL TUMORS In rats, tirzepatide causes dose-dependent and treatment-duration-dependent thyroid C-cell tumors at clinically relevant exposures. (نشرة تيرزيباتيد، تحذير مؤطر)

Patients suspected of developing thyrotoxicosis should be managed carefully to avoid abrupt withdrawal of beta-adrenergic blocking agents that might precipitate a thyroid storm. (نشرة تيمولول، التحذيرات والاحتياطات)

Patients suspected of developing thyrotoxicosis should be managed carefully to avoid abrupt withdrawal of beta-adrenergic blocking agents that might precipitate a thyroid storm. (نشرة دورزولاميد وتيمولول، التحذيرات والاحتياطات)

WARNING: RISK OF THYROID C-CELL TUMORS In male and female rats, dulaglutide causes a dose-related and treatment-duration-dependent increase in the incidence of thyroid C-cell tumors (adenomas and carcinomas) after lifetime exposure. (نشرة دولاغلوتيد، تحذير مؤطر)

When concomitant administration of corticosteroids and levothyroxine is required, administration of corticosteroid should precede the initiation of levothyroxine therapy to avoid adrenal crisis. (نشرة ديكساميثازون، التحذيرات والاحتياطات)

Thyroid Abnormalities Avoid abrupt withdrawal of beta-blockade which might be followed by an exacerbation of symptoms of hyperthyroidism, including thyroid storm. (نشرة سوتالول، التحذيرات والاحتياطات)

WARNING: RISK OF THYROID C-CELL TUMORS • In rodents, semaglutide causes dose-dependent and treatment-duration-dependent thyroid C-cell tumors at clinically relevant exposures. (نشرة سيماغلوتيد، تحذير مؤطر)

Reactions including anaphylaxis have been reported [see Adverse Reactions (6.2) ] High levels of FSH indicating primary gonadal failure Presence of uncontrolled non-gonadal endocrinopathies (e.g., thyroid, adrenal, or pituitary disorders) [see Indications and Usage (1.1 , 1.2 , 1.3) ] Hypersensitivity reactions to streptomycin or neomycin. (نشرة فوليتروبين، موانع الاستعمال)

Clomiphene citrate tablets are contraindicated in patients with uncontrolled thyroid or adrenal dysfunction or in the presence of an organic intracranial lesion such as pituitary tumor (see INDICATIONS AND USAGE). (نشرة كلوميفين، موانع الاستعمال)

Presence of uncontrolled non-gonadal endocrinopathies (e.g., thyroid, adrenal, or pituitary disorders). (نشرة كوريوغونادوتروبين ألفا، موانع الاستعمال)

Do not take thyroid hormone replacement therapy within 2 hours of dosing with LANTHANUM CARBONATE. (نشرة لانثانوم، التداخلات الدوائية)

WARNING: RISK OF THYROID C-CELL TUMORS • Liraglutide causes dose-dependent and treatment-duration-dependent thyroid C-cell tumors at clinically relevant exposures in both genders of rats and mice. (نشرة ليراغلوتيد، تحذير مؤطر)

Patients suspected of developing thyrotoxicosis should be managed carefully to avoid abrupt withdrawal of beta-adrenergic blockade which might precipitate a thyroid storm. (نشرة نادولول، التحذيرات)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Oral Anticoagulants Levothyroxine increases the response to oral anticoagulant therapy. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Drug or Drug Class Effect Beta-adrenergic antagonists e.g., Propranolol > 160 mg/day) In patients treated with large doses of propranolol (> 160 mg/day), T 3 and T 4 levels change slightly, TSH levels remain normal, and patients are clinically euthyroid. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Drug or Drug Class Effect Beta-adrenergic antagonists e.g., Propranolol > 160 mg/day) In patients treated with large doses of propranolol (> 160 mg/day), T 3 and T 4 levels change slightly, TSH levels remain normal, and patients are clinically euthyroid. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Oral Anticoagulants Levothyroxine increases the response to oral anticoagulant therapy. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

An initial increase in serum FT 4 is followed by return of FT 4 to normal levels with sustained therapeutic serum salicylate concentrations, although total T 4 levels may decrease by as much as 30%. (نشرة ليفوثيروكسين، التداخلات الدوائية)

An initial increase in serum FT 4 is followed by return of FT 4 to normal levels with sustained therapeutic serum salicylate concentrations, although total T 4 levels may decrease by as much as 30%. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Abnormal Thyroid Function Tests Dose-dependent decreases in serum T3 and T4 (free and total) values have been observed in patients taking APTIOM. (نشرة إسليكاربازيبين، التحذيرات والاحتياطات)

Drug or Drug Class Effect Beta-adrenergic antagonists e.g., Propranolol > 160 mg/day) In patients treated with large doses of propranolol (> 160 mg/day), T 3 and T 4 levels change slightly, TSH levels remain normal, and patients are clinically euthyroid. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Drug or Drug Class Effect Beta-adrenergic antagonists e.g., Propranolol > 160 mg/day) In patients treated with large doses of propranolol (> 160 mg/day), T 3 and T 4 levels change slightly, TSH levels remain normal, and patients are clinically euthyroid. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Monitor thyroid function before initiation of, and periodically throughout, treatment with INLYTA. (نشرة أكسيتينيب، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

الحديد يقلّل امتصاص هذه الأدوية؛ افصل بينها ببضع ساعات. (NIH Office of Dietary Supplements, Iron)

مكملات الكالسيوم قد تقلّل امتصاص هذه الأدوية؛ افصل بينها بعدة ساعات. (NIH Office of Dietary Supplements, Calcium)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Levothyroxine The bioavailability of alendronate was slightly decreased when BINOSTO and levothyroxine were co-administered to healthy subjects [see Clinical Pharmacology (12.3) ] . (نشرة أليندرونات، التداخلات الدوائية)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Amiodarone Amiodarone inhibits peripheral conversion of levothyroxine (T4) to triiodothyronine (T3) and may cause isolated biochemical changes (increase in serum free-T4, and decreased or normal free-T3) in clinically euthyroid patients. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Thyroid function should be monitored periodically. (نشرة إنترفيرون بيتا-1a، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

An initial increase in serum FT 4 is followed by return of FT 4 to normal levels with sustained therapeutic serum salicylate concentrations, although total T 4 levels may decrease by as much as 30%. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Drug Interactions and Decreased Vitamin Absorption ORLISTAT may interact with concomitant drugs including cyclosporine, levothyroxine, warfarin, amiodarone, antiepileptic drugs, and antiretroviral drugs [see Drug Interactions (7) ]. (نشرة أورليستات، التحذيرات والاحتياطات)

Thyroid Function Abnormalities MYCAPSSA suppresses the secretion of thyroid-stimulating hormone, which may result in hypothyroidism. (نشرة أوكتريوتيد، التحذيرات والاحتياطات)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Oral Anticoagulants Levothyroxine increases the response to oral anticoagulant therapy. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Oral Anticoagulants Levothyroxine increases the response to oral anticoagulant therapy. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Hypothyroidism : Monitor thyroid tests at baseline, during treatment and as clinically indicated and manage hypothyroidism as appropriate. (نشرة بازوبانيب، التحذيرات والاحتياطات)

Monitoring pituitary function (e.g., thyroid, adrenal, gonadal) prior to initiation of therapy with SIGNIFOR LAR, as well as periodically during treatment, as clinically appropriate, is recommended. (نشرة باسيريوتيد، التحذيرات والاحتياطات)

An initial increase in serum FT 4 is followed by return of FT 4 to normal levels with sustained therapeutic serum salicylate concentrations, although total T 4 levels may decrease by as much as 30%. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

An initial increase in serum FT 4 is followed by return of FT 4 to normal levels with sustained therapeutic serum salicylate concentrations, although total T 4 levels may decrease by as much as 30%. (نشرة ليفوثيروكسين، التداخلات الدوائية)

An initial increase in serum FT 4 is followed by return of FT 4 to normal levels with sustained therapeutic serum salicylate concentrations, although total T 4 levels may decrease by as much as 30%. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Drug or Drug Class Effect Beta-adrenergic antagonists e.g., Propranolol > 160 mg/day) In patients treated with large doses of propranolol (> 160 mg/day), T 3 and T 4 levels change slightly, TSH levels remain normal, and patients are clinically euthyroid. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Drug or Drug Class Effect Beta-adrenergic antagonists e.g., Propranolol > 160 mg/day) In patients treated with large doses of propranolol (> 160 mg/day), T 3 and T 4 levels change slightly, TSH levels remain normal, and patients are clinically euthyroid. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Drug or Drug Class Effect Beta-adrenergic antagonists e.g., Propranolol > 160 mg/day) In patients treated with large doses of propranolol (> 160 mg/day), T 3 and T 4 levels change slightly, TSH levels remain normal, and patients are clinically euthyroid. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Oral Anticoagulants Levothyroxine increases the response to oral anticoagulant therapy. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Androgens/Anabolic Steroids Asparaginase Glucocorticoids Slow-Release Nictonic Acid These drugs may decrease serum TBG concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Monitor and replace thyroid hormone if needed. (نشرة بيكساروتين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

…Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

An initial increase in serum FT 4 is followed by return of FT 4 to normal levels with sustained therapeutic serum salicylate concentrations, although total T 4 levels may decrease by as much as 30%. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Androgens/Anabolic Steroids Asparaginase Glucocorticoids Slow-Release Nictonic Acid These drugs may decrease serum TBG concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Oral Anticoagulants Levothyroxine increases the response to oral anticoagulant therapy. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Androgens/Anabolic Steroids Asparaginase Glucocorticoids Slow-Release Nictonic Acid These drugs may decrease serum TBG concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Digitalis Glycosides Levothyroxine may reduce the therapeutic effects of digitalis glycosides. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

An initial increase in serum FT 4 is followed by return of FT 4 to normal levels with sustained therapeutic serum salicylate concentrations, although total T 4 levels may decrease by as much as 30%. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

…levonorgestrel Immunosuppressants Cyclosporine, tacrolimus Methylxanthines Theophylline Narcotic analgesics Methadone Phosphodiesterase-5 (PDE-5) Inhibitors Sildenafil Thyroid preparations Levothyroxine Tricyclic antidepressants Amitriptyline, nortriptyline 7.5 Other Interactions The conversion of PRIFTIN to 25-desacetyl rifapentine is mediated by an esterase enzyme. (نشرة ريفابنتين، التداخلات الدوائية)

Oral Anticoagulants Levothyroxine increases the response to oral anticoagulant therapy. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Drug or Drug Class Effect Phenobarbital Rifampin Phenobarbital has been shown to reduce the response to thyroxine. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

An initial increase in serum FT 4 is followed by return of FT 4 to normal levels with sustained therapeutic serum salicylate concentrations, although total T 4 levels may decrease by as much as 30%. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

An initial increase in serum FT 4 is followed by return of FT 4 to normal levels with sustained therapeutic serum salicylate concentrations, although total T 4 levels may decrease by as much as 30%. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

• Impairment of Thyroid Stimulating Hormone Suppression (TSH) in DTC : Monitor TSH monthly and adjust thyroid replacement therapy in patients with thyroid cancer. (نشرة سورافينيب، التحذيرات والاحتياطات)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Hypothyroidism: Monitor thyroid function periodically as hypothyroidism may occur or worsen after initiation of somatropin. (نشرة سوماتروبين، التحذيرات والاحتياطات)

• Thyroid Dysfunction : Monitor thyroid function at baseline, periodically during treatment, and as clinically indicated. (نشرة سونيتينيب، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Administration of sertraline in patients stabilized on levothyroxine may result in increased levothyroxine requirements. (نشرة ليفوثيروكسين، التداخلات الدوائية)

For oral medication where a reduction in the bioavailability of that medication would have a clinically significant effect on its safety or efficacy (e.g., cyclosporine, tacrolimus, levothyroxine), consider separation of the timing of the administration of the two drugs [see Clinical Pharmacology (12.3) ] . (نشرة سيفيلامير، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Androgens/Anabolic Steroids Asparaginase Glucocorticoids Slow-Release Nictonic Acid These drugs may decrease serum TBG concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

…Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Furosemide has been shown to inhibit the protein binding of T4 to TBG and albumin, causing an increase free T4 fraction in serum. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Oral Anticoagulants Levothyroxine increases the response to oral anticoagulant therapy. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Drug or Drug Class Effect Phenobarbital Rifampin Phenobarbital has been shown to reduce the response to thyroxine. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Drug or Drug Class Effect Phenobarbital Rifampin Phenobarbital has been shown to reduce the response to thyroxine. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Phenytoin and carbamazepine reduce serum protein binding of levothyroxine, and total and free T4 may be reduced by 20% to 40%, but most patients have normal serum TSH levels and are clinically euthyroid. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Phenytoin and carbamazepine reduce serum protein binding of levothyroxine, and total and free T4 may be reduced by 20% to 40%, but most patients have normal serum TSH levels and are clinically euthyroid. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Drug or Drug Class Effect Beta-adrenergic antagonists e.g., Propranolol > 160 mg/day) In patients treated with large doses of propranolol (> 160 mg/day), T 3 and T 4 levels change slightly, TSH levels remain normal, and patients are clinically euthyroid. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Drug Interactions Cholestyramine for Oral Suspension USP may delay or reduce the absorption of concomitant oral medication such as phenylbutazone, warfarin, thiazide diuretics (acidic), or propranolol (basic), as well as tetracycline, penicillin G, phenobarbital, thyroid and thyroxine preparations, estrogens and progestins, and digitalis. (نشرة كوليسترامين، التداخلات الدوائية)

Concomitant use with colesevelam hydrochloride may decrease the exposure of the following drugs: Drugs with a narrow therapeutic index (e.g., cyclosporine), phenytoin, thyroid hormone replacement therapy, warfarin, oral contraceptives containing ethinyl estradiol and norethindrone, olmesartan medoxomil, and sulfonylureas (glimepiride, glipizide, glyburide). (نشرة كوليسيفيلام، التداخلات الدوائية)

Hypothyroidism Adults: Clinical trials with quetiapine demonstrated dose-related decreases in thyroid hormone levels. (نشرة كويتيابين، التحذيرات والاحتياطات)

Drug or Drug Class Effect Beta-adrenergic antagonists e.g., Propranolol > 160 mg/day) In patients treated with large doses of propranolol (> 160 mg/day), T 3 and T 4 levels change slightly, TSH levels remain normal, and patients are clinically euthyroid. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Thyroid Function Abnormalities : Decreases in thyroid function may occur; perform tests where clinically indicated. (نشرة لانريوتيد، التحذيرات والاحتياطات)

• Hypothyroidism and Hyperthyroidism: Monitor thyroid function regularly ( 5.7 ). (نشرة ليثيوم، التحذيرات والاحتياطات)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Other drugs: Amiodarone Amiodarone inhibits peripheral conversion of levothyroxine (T4) to triiodothyronine (T3) and may cause isolated biochemical changes (increase in serum free-T4, and decreased or normal free-T3) in clinically euthyroid patients. (نشرة ليوثيرونين، التداخلات الدوائية)

An initial increase in serum FT 4 is followed by return of FT 4 to normal levels with sustained therapeutic serum salicylate concentrations, although total T 4 levels may decrease by as much as 30%. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Drug or Drug Class Effect Beta-adrenergic antagonists e.g., Propranolol > 160 mg/day) In patients treated with large doses of propranolol (> 160 mg/day), T 3 and T 4 levels change slightly, TSH levels remain normal, and patients are clinically euthyroid. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Drug or Drug Class Effect Beta-adrenergic antagonists e.g., Propranolol > 160 mg/day) In patients treated with large doses of propranolol (> 160 mg/day), T 3 and T 4 levels change slightly, TSH levels remain normal, and patients are clinically euthyroid. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Androgens/Anabolic Steroids Asparaginase Glucocorticoids Slow-Release Nictonic Acid These drugs may decrease serum TBG concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Sympathomimetics Concurrent use may of sympathomimetics and levothyroxine may increase the effects of sympathomimetics or thyroid hormone. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

An initial increase in serum FT 4 is followed by return of FT 4 to normal levels with sustained therapeutic serum salicylate concentrations, although total T 4 levels may decrease by as much as 30%. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

…Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Worsening of Diabetic Control : May worsen glycemic control and result in increased antidiabetic agent or insulin requirements. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…1: Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Drug or Drug Class Effect Beta-adrenergic antagonists e.g., Propranolol > 160 mg/day) In patients treated with large doses of propranolol (> 160 mg/day), T 3 and T 4 levels change slightly, TSH levels remain normal, and patients are clinically euthyroid. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Antidepressant Therapy Concurrent use of tricyclic (e.g., amitriptyline) or tetracyclic (e.g., maprotiline) antidepressants and levothyroxine may increase the therapeutic and toxic effects of both drugs, possibly due to increased receptor sensitivity to catecholamines. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

…recommended that appropriate references first be consulted to determine the usual precautions for the use of the other drug; e.g., when epinephrine is injected along with hyaluronidase, the precautions for the use of epinephrine in cardiovascular disease, thyroid disease, diabetes, digital nerve block, ischemia of the fingers and toes etc., should be observed. (نشرة هيالورونيداز، التداخلات الدوائية)

Oral Anticoagulants Levothyroxine increases the response to oral anticoagulant therapy. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Failure to do so may precipitate an acute adrenal crisis when thyroid hormone therapy is initiated, due to increased metabolic clearance of glucocorticoids by thyroid hormone. (نشرة ليفوثيروكسين، التحذيرات والاحتياطات)

Oral Anticoagulants Levothyroxine increases the response to oral anticoagulant therapy. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Cases of myelodysplastic syndrome, acute leukemias, lymphomas, thyroid cancers, and sarcomas have occurred and may develop several years after chemotherapy has been discontinued. (نشرة إيفوسفاميد، التحذيرات والاحتياطات)

Hypothyroidism has been reported in thyroidectomy patients undergoing levothyroxine replacement. (نشرة إيماتينيب، التحذيرات والاحتياطات)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Changes in thyroid status may occur if barbiturates are added or withdrawn from patients being treated for hypothyroidism. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Changes in thyroid status may occur if barbiturates are added or withdrawn from patients being treated for hypothyroidism. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Cytologic abnormalities characterized by giant, hyperchromatic nuclei have been reported in lymph nodes, pancreas, thyroid, adrenal glands, liver, and bone marrow. (نشرة بوسلفان، التحذيرات)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

…performed, the following concomitant drugs were used in at least 10% of patients in either or both Sjogren's efficacy studies: acetylsalicylic acid, artificial tears, calcium, conjugated estrogens, hydroxychloroquine sulfate, ibuprofen, levothyroxine sodium, medroxyprogesterone acetate, methotrexate, multivitamins, naproxen, omeprazole, paracetamol, and prednisone. (نشرة بيلوكاربين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Hypocalcemia and Mineral Metabolism Preexisting hypocalcemia and disturbances of mineral metabolism (e.g., hypoparathyroidism, thyroid surgery, parathyroid surgery; malabsorption syndromes, excision of small intestine) must be effectively treated before initiating therapy with Reclast. (نشرة حمض الزوليدرونيك، التحذيرات والاحتياطات)

Effect on Ketone and Thyroid Function Tests Valproate is partially eliminated in the urine as a keto-metabolite which may lead to a false interpretation of the urine ketone test. (نشرة حمض الفالبرويك، التحذيرات والاحتياطات)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Effect on Ketone and Thyroid Function Tests Valproate is partially eliminated in the urine as a keto-metabolite which may lead to a false interpretation of the urine ketone test. (نشرة ديفالبروكس (فالبروات)، التحذيرات والاحتياطات)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other Medications Used for the Management of Fanconi Syndrome PROCYSBI can be administered with other electrolyte and mineral replacements necessary for management of Fanconi syndrome, as well as vitamin D and thyroid hormone. (نشرة سيستيامين، التداخلات الدوائية)

Losartan, glipizide and levothyroxine did not show any changes in exposure when co-administered with LOKELMA. (نشرة سيكلوسيليكات الزركونيوم الصوديوم، التداخلات الدوائية)

Secondary malignancies (urinary tract cancer, myelodysplasia, acute leukemias, lymphomas, thyroid cancer, and sarcomas) have been reported in patients treated with cyclophosphamide-containing regimens . (نشرة سيكلوفوسفاميد، التحذيرات والاحتياطات)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Ketamine Concurrent use of ketamine and levothyroxine may produce marked hypertension and tachycardia. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Thyroid Disorders Both hypothyroidism and hyperthyroidism have been reported [see Adverse Reactions (6.2) ] . (نشرة ليناليدوميد، التحذيرات والاحتياطات)

Changes in thyroid status may occur if barbiturates are added or withdrawn from patients being treated for hypothyroidism. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

EMROSI may induce hyperpigmentation in many organs, including nails, bone, skin, eyes, thyroid, visceral tissue, oral cavity (teeth, mucosa, alveolar bone), sclerae and heart valves. (نشرة مينوسيكلين، التحذيرات والاحتياطات)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Other drugs: Carbamazepine Furosemide (> 80 mg IV) Heparin Hydantoins Non-Steroidal Anti-Inflammatory Drugs - Fenamates These drugs may cause protein-binding site displacement. (نشرة ليفوثيروكسين، التداخلات الدوائية)

Warnings Potassium iodide can cause fetal harm, abnormal thyroid function, and goiter when administered to a pregnant woman. (نشرة يوديد البوتاسيوم، التحذيرات)

…adjustment is needed when SINGULAIR is co-administered with theophylline, prednisone, prednisolone, oral contraceptives, fexofenadine, digoxin, warfarin, gemfibrozil, itraconazole, thyroid hormones, sedative hypnotics, non-steroidal anti-inflammatory agents, benzodiazepines, decongestants, and Cytochrome P450 (CYP) enzyme inducers [see Clinical Pharmacology (12.3)… (نشرة مونتيلوكاست، التداخلات الدوائية)