Chloroquine : interactions médicamenteuses

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Reserve the combination of amiodarone with other antiarrhythmic therapies that prolong the QTc to patients with life-threatening ventricular arrhythmias who are incompletely responsive to a single agent. (notice Amiodarone, Mises en garde et précautions)

Drugs that Prolong QT Avoid use of AGRYLIN in patients taking medications that may prolong QT interval (including, but not limited to, chloroquine, clarithromycin, haloperidol, methadone, moxifloxacin, amiodarone, disopyramide, procainamide, and pimozide) [see Warnings and Precautions (5.1) and Clinical Pharmacology (12.2) ] . (notice Anagrélide, Interactions médicamenteuses)

This risk which can be fatal should be considered in patients with certain cardiovascular disorders including known QT prolongation or history torsades de pointes, those with proarrhythmic conditions, and with other drugs that prolong the QT interval. (notice Azithromycine, Mises en garde et précautions)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Concomitant use of cimetidine should be avoided. (notice Chloroquine, Interactions médicamenteuses)

Avoid use in patients with known prolongation, those with hypokalemia, and with other drugs that prolong the QT interval. (notice Ciprofloxacine, Mises en garde et précautions)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Use with Drugs that Prolong QT Interval and Antiarrhythmic Agents The use of dofetilide in conjunction with other drugs that prolong the QT interval has not been studied and is not recommended. (notice Dofétilide, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Concomitant use of COMPLERA with drugs with a known risk to prolong the QTc interval of the electrocardiogram may increase the risk of Torsade de Pointes. (notice Emtricitabine, rilpivirine et ténofovir, Mises en garde et précautions)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Coadministration of other drugs known to prolong the QT interval and which are metabolized via the enzyme CYP3A4 such as erythromycin, pimozide, and quinidine are contraindicated in patients receiving fluconazole. (notice Fluconazole, Contre-indications)

(See DOSAGE and ADMINISTRATION. ) Because of the risk of QT prolongation and the potential for torsades de pointes, the use of FOSCAVIR should be avoided in combination with agents known to prolong the QT interval including Class IA (e.g., quinidine or procainamide) or Class III (e.g., dofetilide, amiodarone, sotalol) antiarrhythmic agents, phenothiazines, tricyclic… (notice Foscarnet, Interactions médicamenteuses)

Avoid co-administration of CONTEPO with drugs known to prolong the QT interval. (notice Fosfomycine, Interactions médicamenteuses)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Therefore, PLAQUENIL is not recommended in patients taking other drugs that have the potential to prolong the QT interval. (notice Hydroxychloroquine, Mises en garde et précautions)

Avoid the use of FANAPT in combination with any other drugs that prolong the QT interval [see Warnings and Precautions (5.3) ] . (notice Ilopéridone, Interactions médicamenteuses)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Bradycardia may increase the risk of QT prolongation which may lead to severe ventricular arrhythmias, including torsade de pointes, especially in patients with risk factors such as use of QTc prolonging drugs [see Adverse Reactions ( 6.2 )] . (notice Ivabradine, Mises en garde et précautions)

Avoid use in patients with known prolongation, those with hypokalemia, and with other drugs that prolong the QT interval ( 5.11 , 8.5 ) (notice Lévofloxacine, Mises en garde et précautions)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Avoid use in patients with congenital long QT syndrome, those with hypokalemia, and with other drugs that prolong the QT interval. (notice Lopinavir et ritonavir, Mises en garde et précautions)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Examples diazepam, alprazolam, alcohol Drugs that Prolong QTc Interval Clinical Impact The concomitant use of other drugs which prolong the QTc interval with REMERON/REMERONSolTab, increase the risk of QT prolongation and/or ventricular arrhythmias (e.g., Torsades de Pointes). (notice Mirtazapine, Interactions médicamenteuses)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Avoid coadministration of oxaliplatin injection with medicinal products with a known potential to prolong the QT interval. (notice Oxaliplatine, Interactions médicamenteuses)

Avoid coadministration of VOTRIENT with drugs known to prolong the QT/QTc interval. (notice Pazopanib, Interactions médicamenteuses)

Penicillamine should not be used in patients who are receiving concurrently gold therapy, antimalarial or cytotoxic drugs, oxyphenbutazone or phenylbutazone because these drugs are also associated with similar serious hematologic and renal adverse reactions. (notice Pénicillamine, Précautions)

Drugs that Prolong the QT Interval : Avoid concomitant use. (notice Phénobarbital, Interactions médicamenteuses)

Because pimozide prolongs the QT interval of the electrocardiogram it is contraindicated in patients with congenital long QT syndrome, patients with a history of cardiac arrhythmias, patients taking other drugs which prolong the QT interval of the electrocardiogram or patients with known hypokalemia or hypomagnesemia (see also PRECAUTIONS - DRUG INTERACTIONS ). (notice Pimozide, Contre-indications)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

The use of WAKIX should be avoided in patients with known QT prolongation or in combination with other drugs known to prolong the QT interval [see Drug Interactions ( 7.1 )]. (notice Pitolisant, Mises en garde et précautions)

• Avoid use with other antiarrhythmic agents or drugs that prolong the QT interval. (notice Propafénone, Mises en garde et précautions)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Avoid the concomitant use of drugs known to prolong the QTc interval. (notice Sertraline, Interactions médicamenteuses)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Tamoxifen: Concomitant use of chloroquine with drugs known to induce retinal toxicity such as tamoxifen is not recommended (see WARNINGS ). (notice Chloroquine, Interactions médicamenteuses)

Certain conditions may increase the risk for torsade de pointes or sudden death such as (1) bradycardia; (2) hypokalemia or hypomagnesemia; (3) concomitant use of other drugs that prolong the QTc interval; and (4) presence of congenital prolongation of the QT interval [see Warnings and Precautions ( 5.8 ), Clinical Pharmacology (12.2) ]. (notice Tétrabénazine, Interactions médicamenteuses)

CONTRAINDICATIONS Thioridazine hydrochloride tablet use should be avoided in combination with other drugs that are known to prolong the QTc interval and in patients with congenital long QT syndrome or a history of cardiac arrhythmias. (notice Thioridazine, Contre-indications)

Hypoglycemia Chloroquine has been shown to cause severe hypoglycemia including loss of consciousness that could be life-threatening in patients treated with or without antidiabetic medications (see PRECAUTIONS , Drug Interactions ). (notice Chloroquine, Mises en garde)

Avoid concomitant use of VEPPANU with strong CYP3A inhibitors or drugs known to prolong the QTc interval. (notice Vepdégestrant, Mises en garde et précautions)

…drugs, ziprasidone is contraindicated: • in patients with a known history of QT prolongation (including congenital long QT syndrome) • in patients with recent acute myocardial infarction • in patients with uncompensated heart failure Pharmacokinetic/pharmacodynamic studies between ziprasidone and other drugs that prolong the QT interval have not been performed. (notice Ziprasidone, Contre-indications)

Ampicillin: In a study of healthy volunteers, chloroquine significantly reduced the bioavailability of ampicillin. (notice Chloroquine, Interactions médicamenteuses)

Ampicillin: In a study of healthy volunteers, chloroquine significantly reduced the bioavailability of ampicillin. (notice Chloroquine, Interactions médicamenteuses)

Drug Interactions Antacids and kaolin: Antacids and kaolin can reduce absorption of chloroquine; an interval of at least 4 hours between intake of these agents and chloroquine should be observed. (notice Chloroquine, Interactions médicamenteuses)

MAO inhibitors, tricyclic antidepressants and drugs that prolong the QTc interval may potentiate effect on the cardiovascular system. (notice Arformotérol, Interactions médicamenteuses)

…ropivacaine, tetracaine Antineoplastic agents cyclophosphamide, flutamide, hydroxyurea, ifosfamide, rasburicase Antibiotics dapsone, nitrofurantoin, para-aminosalicylic acid, sulfonamides Antimalarials chloroquine, primaquine Anticonvulsants phenobarbital, phenytoin, sodium valproate Other drugs acetaminophen, metoclopramide, quinine, sulfasalazine Monoamine Oxidase… (notice Articaïne et adrénaline, Interactions médicamenteuses)

Patients infected with a resistant strain of plasmodia as shown by the fact that normally adequate doses have failed to prevent or cure clinical malaria or parasitemia should be treated with another form of antimalarial therapy. (notice Chloroquine, Mises en garde)

Patients infected with a resistant strain of plasmodia as shown by the fact that normally adequate doses have failed to prevent or cure clinical malaria or parasitemia should be treated with another form of antimalarial therapy. (notice Chloroquine, Mises en garde)

Drug Interactions Antacids and kaolin: Antacids and kaolin can reduce absorption of chloroquine; an interval of at least 4 hours between intake of these agents and chloroquine should be observed. (notice Chloroquine, Interactions médicamenteuses)

• Drugs Associated with Methemoglobinemia : Patients are at increased risk of developing methemoglobinemia when concurrently exposed to nitrates, nitrites, local anesthetics, antineoplastic agents, antibiotics, antimalarials, anticonvulsants, and other drugs. (notice Bupivacaïne, Interactions médicamenteuses)

• Drugs Associated with Methemoglobinemia : Patients are at increased risk of developing methemoglobinemia when concurrently exposed to nitrates, nitrites, local anesthetics, antineoplastic agents, antibiotics, antimalarials, anticonvulsants, and other drugs. (notice Bupivacaïne et adrénaline, Interactions médicamenteuses)

The risk of combining buprenorphine with other QT-prolonging agents is not known. (notice Buprénorphine, Mises en garde et précautions)

The risk of combining buprenorphine with other QT-prolonging agents is not known. (notice Buprénorphine et naloxone, Mises en garde et précautions)

…procaine, ropivacaine, tetracaine Antineoplastic agents cyclophosphamide, flutamide, hydroxyurea, ifosfamide, rasburicase Antibiotics dapsone, nitrofurantoin, para-aminosalicylic acid, sulfonamides Antimalarials chloroquine, primaquine Anticonvulsants Phenobarbital, phenytoin, sodium valproate Other drugs acetaminophen, metoclopramide, quinine, sulfasalazine (notice Chloroprocaïne, Précautions)

Cyclosporine: After introduction of chloroquine (oral form), a sudden increase in serum cyclosporine level has been reported. (notice Chloroquine, Interactions médicamenteuses)

QT Interval Prolongation and V entricular A rr h ythmia Decreases in serum calcium can also prolong the QT interval, potentially resulting in ventricular arrhythmia. (notice Cinacalcet, Mises en garde et précautions)

Avoid use of Citalopram Capsules in patients with congenital long QT syndrome, bradycardia, hypokalemia or hypomagnesemia, recent acute myocardial infarction, or uncompensated heart failure and patients taking other drugs that prolong the QTc interval. (notice Citalopram, Mises en garde et précautions)

Antimalarial : artemether/lumefantrine ↓ artemether ↓ dihydroartemisinin ↑ lumefantrine ↔ darunavir The combination of PREZISTA/ritonavir and artemether/lumefantrine can be used without dose adjustments. (notice Darunavir, Interactions médicamenteuses)

Antimalarial: artemether/lumefantrine artemether: effect unknown lumefantrine: effect unknown Monitor for a potential decrease of antimalarial efficacy or potential QT prolongation. (notice Darunavir et cobicistat, Interactions médicamenteuses)

Carefully monitor cardiac rhythm when administering SUPRANE to susceptible patients (e.g., patients with congenital Long QT Syndrome or patients taking drugs that can prolong the QT interval). (notice Desflurane, Mises en garde et précautions)

…cardiac disease, 3) treatment with Class I and Class III antiarrhythmics, 4) treatment with monoamine oxidase inhibitors (MAOI's), 5) concomitant treatment with other drug products known to prolong the QT interval (see PRECAUTIONS, Drug Interactions ), and 6) electrolyte imbalance, in particular hypokalemia and hypomagnesemia, or concomitant treatment with drugs… (notice Dropéridol, Mises en garde)

QT Prolonging Drugs There is limited information available on the potential for a pharmacodynamic interaction between efavirenz and drugs that prolong the QTc interval. (notice Éfavirenz, Interactions médicamenteuses)

QT Prolonging Drugs There is limited information available on the potential for a pharmacodynamic interaction between EFV and drugs that prolong the QTc interval. (notice Éfavirenz, lamivudine et ténofovir, Interactions médicamenteuses)

QT Prolongation: Monitor for prolonged QT intervals in patients with congestive heart failure, bradyarrhythmias, drugs known to prolong the QT interval, and electrolyte abnormalities. (notice Éribuline, Mises en garde et précautions)

Antimalarial : artemether/lumefantrine ↔ etravirine ↓ artemether ↓ dihydroartemisinin ↓ lumefantrine Caution is warranted when co-administering Etravirine and artemether/lumefantrine as it is unknown whether the decrease in exposure of artemether or its active metabolite, dihydroartemisinin, could result in decreased antimalarial efficacy. (notice Étravirine, Interactions médicamenteuses)

…prolonged QT interval, 3) treatment with Class 1 and Class III antiarrhythmics, 4) treatment with monoamine oxidase inhibitors (MAOI's), 5) concomitant treatment with other drug products known to prolong the QT interval and 6) electrolyte imbalance, in particular hypokalemia and hypomagnesemia, or concomitant treatment with drugs (e.g., diuretics) that may cause electrolyte… (notice Fentanyl, Mises en garde et précautions)

Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (notice Fluoxétine, Interactions médicamenteuses)

…Antidepressants, QTc Prolonging Drugs Formoterol, as with other beta 2 -agonists, should be administered with extreme caution to patients being treated with monoamine oxidase inhibitors, tricyclic antidepressants, or drugs known to prolong the QTc interval because the effect of adrenergic agonists on the cardiovascular system may be potentiated by these agents. (notice Formotérol, Interactions médicamenteuses)

Effect on QT/QTc Interval: Androgen deprivation therapy may prolong the QT interval. (notice Goséréline, Mises en garde et précautions)

This observation should be considered in making clinical decisions regarding patient monitoring when prescribing HYSINGLA ER in patients with congestive heart failure, bradyarrhythmias, electrolyte abnormalities, or who are taking medications that are known to prolong the QTc interval. (notice Hydrocodone, Mises en garde et précautions)

Monitor QT interval when administering FORANE to susceptible patients (e.g., patients with congenital Long QT Syndrome or patients taking drugs that can prolong the QT interval). (notice Isoflurane, Mises en garde et précautions)

TYKERB may prolong the QT interval in some patients. (notice Lapatinib, Mises en garde et précautions)

Effect on QT/QTc Interval: Androgen deprivation therapy may prolong the QT interval. (notice Leuproréline, Mises en garde et précautions)

Drugs Associated with Methemoglobinemia: Patients are at increased risk of developing methemoglobinemia when concurrently exposed to nitrates, nitrites, local anesthetics, antineoplastic agents, antibiotics, antimalarials, anticonvulsants, and other drugs. (notice Lidocaïne et adrénaline, Interactions médicamenteuses)

…prilocaine, procaine, ropivacaine, tetracaine Antineoplastic agents cyclophosphamide, flutamide, hydroxyurea, isofamide, rasburicase Antibiotics dapsone, nitrofurantoin, para-aminosalicylic acid, sufonamides Antimalarials chloroquine, primaquine Anticonvulsants Phenobarbital, phenytoin, sodium valproate Other drugs acetaminophen, metoclopramide, quinine, sulfasalazine (notice Lidocaïne et prilocaïne, Interactions médicamenteuses)

Risk of QT Prolongation : Lofexidine tablets prolong the QT interval. (notice Lofexidine, Mises en garde et précautions)

Mefloquine: Co-administration of chloroquine and mefloquine may increase the risk of convulsions. (notice Chloroquine, Interactions médicamenteuses)

…procaine, ropivacaine, tetracaine Antineoplastic agents cyclophosphamide, flutamide, hydroxyurea, ifosfamide, rasburicase Antibiotics dapsone, nitrofurantoin, para-aminosalicylic acid, sulfonamides Antimalarials chloroquine, primaquine Anticonvulsants phenobarbital, phenytoin, sodium valproate Other drugs acetaminophen, metoclopramide, quinine, sulfasalazine (notice Mépivacaïne, Interactions médicamenteuses)

Drugs that Prolong the QT Interval QT prolongation has been reported, particularly when metronidazole was administered with drugs with the potential for prolonging the QT interval. (notice Métronidazole, Interactions médicamenteuses)

There is little or no experience with high exposure, concomitant dosing with other QT-prolonging drugs, or potassium channel variants resulting in a long QT interval. [See Warnings & Precautions ( 5.6 )] To minimize risk, the lowest effective dose should always be used. (notice Mifépristone, Mises en garde et précautions)

Arrhythmogenic drugs: There may be an increased risk of inducing ventricular arrhythmias if chloroquine is used concomitantly with other arrhythmogenic drugs, such as amiodarone or moxifloxacin. (notice Chloroquine, Interactions médicamenteuses)

Use olanzapine and fluoxetine capsules with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.20 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOIs) [See Dosage and Administration ( 2.4 , 2.5 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.6 )] . (notice Olanzapine et fluoxétine, Interactions médicamenteuses)

Drug Interactions Antacids and kaolin: Antacids and kaolin can reduce absorption of chloroquine; an interval of at least 4 hours between intake of these agents and chloroquine should be observed. (notice Chloroquine, Interactions médicamenteuses)

…combination with other drugs that are known to prolong QTc including Class 1A (e.g., quinidine, procainamide) or Class III (e.g., amiodarone, sotalol) antiarrhythmic medications, antipsychotic medications (e.g., chlorpromazine, thioridazine), antibiotics (e.g., gatifloxacin, moxifloxacin), or any other class of medications known to prolong the QTc interval. (notice Palipéridone, Mises en garde et précautions)

Drugs that Prolong QT: Use with caution in patients who are at significant risk of developing QTc prolongation. (notice Pasiréotide, Interactions médicamenteuses)

Anti-Arrhythmic Drugs, QT Prolonging Drugs, Drugs that may Decrease Heart Rate PONVORY has not been studied in patients taking QT prolonging drugs. (notice Ponésimod, Interactions médicamenteuses)

Praziquantel: In a single-dose interaction study, chloroquine has been reported to reduce the bioavailability of praziquantel. (notice Chloroquine, Interactions médicamenteuses)

…ropivacaine, tetracaine Antineoplastic Agents cyclophosphamide, flutamide, hydroxyurea, ifosfamide, rasburicase Antibiotics dapsone, nitrofurantoin, para-aminosalicylic acid, sulfonamides Antimalarials chloroquine, primaquine Anticonvulsants phenobarbital, phenytoin, sodium valproate Other drugs acetaminophen, metoclopramide, quinine, sulfasalazine The administration… (notice Prilocaïne et adrénaline, Interactions médicamenteuses)

Patients infected with a resistant strain of plasmodia as shown by the fact that normally adequate doses have failed to prevent or cure clinical malaria or parasitemia should be treated with another form of antimalarial therapy. (notice Chloroquine, Mises en garde)

Patients infected with a resistant strain of plasmodia as shown by the fact that normally adequate doses have failed to prevent or cure clinical malaria or parasitemia should be treated with another form of antimalarial therapy. (notice Chloroquine, Mises en garde)

…Class 1A antiarrythmics (e.g., quinidine, procainamide) or Class III antiarrythmics (e.g., amiodarone, sotalol), antipsychotic medications (e.g., ziprasidone, chlorpromazine, thioridazine), antibiotics (e.g., gatifloxacin, moxifloxacin), or any other class of medications known to prolong the QTc interval (e.g., pentamidine, levomethadyl acetate, methadone). (notice Quétiapine, Mises en garde et précautions)

Patients infected with a resistant strain of plasmodia as shown by the fact that normally adequate doses have failed to prevent or cure clinical malaria or parasitemia should be treated with another form of antimalarial therapy. (notice Chloroquine, Mises en garde)

…quinidine, tocainide Antibiotics Chloramphenicol, clarithromycin, dapsone, doxycycline; Fluoroquinolones (such as ciprofloxacin) Oral Anticoagulants Warfarin Anticonvulsants Phenytoin Antimalarials Quinine Azole Antifungals Fluconazole, itraconazole, ketoconazole Antipsychotics Haloperidol Barbiturates Phenobarbital Benzodiazepines Diazepam Beta-Blockers Propranolol… (notice Rifapentine, Interactions médicamenteuses)

In healthy subjects, 75 mg once daily and 300 mg once daily (3 times and 12 times the dose in EDURANT) have been shown to prolong the QTc interval of the electrocardiogram. (notice Rilpivirine, Mises en garde et précautions)

QT Interval Prolongation The overall analysis of ECG data in pediatric patients indicates that the concomitant use of Rocuronium Bromide Injection with general anesthetic agents can prolong the QTc interval [see Clinical Studies ( 14.3 )]. (notice Rocuronium, Mises en garde et précautions)

…ropivacaine, tetracaine Antineoplastic agents cyclophosphamide, flutamide, hydroxyurea, ifosfamide, rasburicase Antibiotics dapsone, nitrofurantoin, para-aminosalicylic acid, sulfonamides Antimalarials chloroquine, primaquine Anticonvulsants Phenobarbital, phenytoin, sodium valproate Other drugs acetaminophen, metoclopramide, quinine, sulfasalazine NAROPIN should be… (notice Ropivacaïne, Interactions médicamenteuses)

Caution should be exercised when administering sevoflurane to susceptible patients (e.g., patients with congenital Long QT Syndrome or patients taking drugs that can prolong the QT interval). (notice Sévoflurane, Mises en garde)

Monitor electrolytes and electrocardiograms in patients with congestive heart failure, bradyarrhythmias, drugs known to prolong the QT interval, including Class Ia and III antiarrhythmics. (notice Sorafénib, Mises en garde et précautions)

Additive to other QT-prolonging drugs ( 7.1 , 7.2 ) (notice Sotalol, Interactions médicamenteuses)

Drugs that Prolong the QT interval QT prolongation has been reported with metronidazole, a component of bismuth subcitrate potassium, metronidazole and tetracycline hydrochloride, particularly when administered with drugs with the potential for prolonging the QT interval. (notice Sous-citrate de bismuth, métronidazole et tétracycline, Mises en garde et précautions)

Drugs that Prolong QT Interval SUTENT is associated with QTc interval prolongation [see Warnings and Precautions (5.3) , Clinical Pharmacology (12.2) ] . (notice Sunitinib, Interactions médicamenteuses)

…the Neuromuscular Blocking Action of Succinylcholine : promazine, oxytocin, aprotinin, certain non-penicillin antibiotics, quinidine, β-adrenergic blockers, procainamide, lidocaine, trimethaphan, lithium carbonate, magnesium salts, quinine, chloroquine, isoflurane, desflurane, metoclopramide, terbutaline, and drugs that reduce plasma cholinesterase activity. (notice Suxaméthonium, Interactions médicamenteuses)

Patients infected with a resistant strain of plasmodia as shown by the fact that normally adequate doses have failed to prevent or cure clinical malaria or parasitemia should be treated with another form of antimalarial therapy. (notice Chloroquine, Mises en garde)

Effect on QT/QTc Interval: Androgen deprivation therapy may prolong the QT interval. (notice Triptoréline, Mises en garde et précautions)

…like other beta 2 -agonists, should be administered with extreme caution to patients being treated with monoamine oxidase inhibitors, tricyclic antidepressants, or drugs known to prolong the QTc interval or within 2 weeks of discontinuation of such agents, because the effect of adrenergic agonists on the cardiovascular system may be potentiated by these agents. (notice Uméclidinium et vilantérol, Interactions médicamenteuses)

Cytochrome (CYP) 3A4 inhibitors, epoxide hydrolase inhibitors, CYP3A4 inducers, drugs metabolized by CYP1A2 or CYP3A4 (oral contraceptives, delavirdine, nefazodone), phenytoin, CNS depressants, lithium, chloroquine, mefloquine ( 7.1 , 7.2 , 7.3 ) (notice Carbamazépine, Interactions médicamenteuses)

Pediatric use In antimalarial trials, quinidine was as safe and effective in pediatric patients as in adults. (notice Quinidine, Précautions)