Memantine and donepezil interactions

Memantine and donepezil (Namzaric), a cholinesterase inhibitor has 197 documented interactions across the FDA labels and fact sheets we index: 1 major, 81 moderate, 114 minor, and 1 where a label reports no significant interaction. Each entry below quotes the sentence behind it. This drug page is a starting point, not a verdict for your situation.

Interactions from the label

Major interactions (1)

  • Pyridostigminecholinesterase inhibitorMajor

    Pyridostigmine bromide extended-release tablets are contraindicated in patients with: Mechanical intestinal or urinary obstruction Known hypersensitivity to pyridostigmine or other anticholinesterase agents Mechanical intestinal or urinary obstruction. (Pyridostigmine label, Contraindications)

Moderate interactions (81)

  • Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • AmantadineanticholinergicModerate

    Use of Memantine with Other N-methyl-D-aspartate (NMDA) Antagonists The combined use of memantine hydrochloride with other NMDA antagonists (amantadine, ketamine, and dextromethorphan) has not been systematically evaluated and such use should be approached with caution. (Memantine and donepezil label, Drug interactions)

  • AprepitantCYP3A4 inhibitorModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • ArmodafinilCNS stimulantModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • AspirinNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • Aspirin and dipyridamoleantiplatelet agentModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • Bethanecholcholinergic agonistModerate

    Peptic Ulcer Disease and Gastrointestinal Bleeding Through their primary action, cholinesterase inhibitors may be expected to increase gastric acid secretion due to increased cholinergic activity. (Memantine and donepezil label, Warnings and precautions)

  • BosentanCYP3A4 inducerModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • Use of Memantine with Other N-methyl-D-aspartate (NMDA) Antagonists The combined use of memantine hydrochloride with other NMDA antagonists (amantadine, ketamine, and dextromethorphan) has not been systematically evaluated and such use should be approached with caution. (Memantine and donepezil label, Drug interactions)

  • Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • CarbamazepineanticonvulsantModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • CelecoxibNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • CenobamateanticonvulsantModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • Cevimelinecholinergic agonistModerate

    Peptic Ulcer Disease and Gastrointestinal Bleeding Through their primary action, cholinesterase inhibitors may be expected to increase gastric acid secretion due to increased cholinergic activity. (Memantine and donepezil label, Warnings and precautions)

  • ClobazambenzodiazepineModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • Cocainelocal anestheticModerate

    Cholinesterase inhibitors: Concomitant administration may increase the risk of cocaine toxicity. (Cocaine label, Drug interactions)

  • Deferasiroxiron supplementModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • DexamethasonecorticosteroidModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • Dextromethorphanserotonergic drugModerate

    Use of Memantine with Other N-methyl-D-aspartate (NMDA) Antagonists The combined use of memantine hydrochloride with other NMDA antagonists (amantadine, ketamine, and dextromethorphan) has not been systematically evaluated and such use should be approached with caution. (Memantine and donepezil label, Drug interactions)

  • Dextromethorphan and quinidineserotonergic drugModerate

    Use of Memantine with Other N-methyl-D-aspartate (NMDA) Antagonists The combined use of memantine hydrochloride with other NMDA antagonists (amantadine, ketamine, and dextromethorphan) has not been systematically evaluated and such use should be approached with caution. (Memantine and donepezil label, Drug interactions)

  • DiclofenacNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • DicyclomineanticholinergicModerate

    Dicyclomine hydrochloride should be given to patients with myasthenia gravis only to reduce adverse muscarinic effects of an anticholinesterase (5.4) (Dicyclomine label, Warnings and precautions)

  • DiflunisalNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • EfavirenzantiretroviralModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • EslicarbazepineanticonvulsantModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • Esmololbeta blockerModerate

    Anticholinesterases: BREVIBLOC prolonged the duration of succinylcholine-induced neuromuscular blockade and moderately prolonged clinical duration and recovery index of mivacurium. (Esmolol label, Drug interactions)

  • EtodolacNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • EtravirineantiretroviralModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • FenoprofenNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • FlurbiprofenNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • FosphenytoinanticonvulsantModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • GriseofulvinantifungalModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • IbuprofenNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • IndomethacinNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • KetamineCNS depressantModerate

    Use of Memantine with Other N-methyl-D-aspartate (NMDA) Antagonists The combined use of memantine hydrochloride with other NMDA antagonists (amantadine, ketamine, and dextromethorphan) has not been systematically evaluated and such use should be approached with caution. (Memantine and donepezil label, Drug interactions)

  • KetoprofenNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • KetorolacNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • Lopinavir and ritonavirantiretroviralModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • LorlatinibCYP3A4 inducerModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • Mefenamic acidNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • MeloxicamNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • MitapivatCYP3A4 inducerModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • MitotaneCYP3A4 inducerModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • ModafinilCNS stimulantModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • NabumetoneNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • Nafcillinpenicillin antibioticModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • NaproxenNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • NevirapineantiretroviralModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • OxaprozinNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • OxcarbazepineanticonvulsantModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • OxybutyninanticholinergicModerate

    Use with caution due to aggravation of symptoms: Pre-existing dementia in patients treated with cholinesterase inhibitors ( 5.2 ), Parkinson’s disease ( 5.2 ), Myasthenia gravis ( 5.3 ), and Decreased gastrointestinal motility in patients with autonomic neuropathy ( 5.4 ). (Oxybutynin label, Warnings and precautions)

  • PhenobarbitalbarbiturateModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • Phentermine and topiramateCNS stimulantModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • PhenytoinanticonvulsantModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • Physostigminecholinesterase inhibitorModerate

    In case of simultaneous administration of other cholinesterase inhibitors (e.g. medicines for the treatment of dementia), caution should be exercised because of the potentiating effect. (Physostigmine label, Drug interactions)

  • Pilocarpinecholinergic agonistModerate

    Peptic Ulcer Disease and Gastrointestinal Bleeding Through their primary action, cholinesterase inhibitors may be expected to increase gastric acid secretion due to increased cholinergic activity. (Memantine and donepezil label, Warnings and precautions)

  • PiroxicamNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • PrimidoneanticonvulsantModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • ProcainamideantiarrhythmicModerate

    Myasthenia Gravis Patients with myasthenia gravis may show worsening of symptoms from PA due to its procaine-like effect on diminishing acetylcholine release at skeletal muscle motor nerve endings, so that PA administration may be hazardous without optimal adjustment of anticholinesterase medications and other precautions. (Procainamide label, Warnings)

  • Use of Memantine with Other N-methyl-D-aspartate (NMDA) Antagonists The combined use of memantine hydrochloride with other NMDA antagonists (amantadine, ketamine, and dextromethorphan) has not been systematically evaluated and such use should be approached with caution. (Memantine and donepezil label, Drug interactions)

  • Ramelteonsedative-hypnoticModerate

    Donepezil: Increases systemic exposure of ramelteon; patients should be closely monitored when ramelteon is coadministered with donepezil. (Ramelteon label, Drug interactions)

  • RifabutinantibioticModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • RifampinantibioticModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • RifapentineantibioticModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • RitonavirantiretroviralModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • SalsalateNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • ScopolamineanticholinergicModerate

    Peptic Ulcer Disease and Gastrointestinal Bleeding Through their primary action, cholinesterase inhibitors may be expected to increase gastric acid secretion due to increased cholinergic activity. (Memantine and donepezil label, Warnings and precautions)

  • Succinylcholineneuromuscular blockerModerate

    NAMZARIC is likely to exaggerate succinylcholine-type muscle relaxation during anesthesia. (Memantine and donepezil label, Warnings and precautions)

  • SulindacNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • SuzetrigineCYP3A4 inducerModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

  • TolmetinNSAIDModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • TopiramateanticonvulsantModerate

    Inducers of CYP3A4 (e.g., phenytoin, carbamazepine, dexamethasone, rifampin, and phenobarbital) could increase the rate of elimination of donepezil. (Memantine and donepezil label, Drug interactions)

Minor mentions (114)

  • Acetazolamidecarbonic anhydrase inhibitorMinor

    Urine pH is altered by diet, drugs (e.g., carbonic anhydrase inhibitors, sodium bicarbonate) and clinical state of the patient (e.g., renal tubular acidosis or severe infections of the urinary tract). (Memantine and donepezil label, Drug interactions)

  • AclidiniumanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • AmiodaroneantiarrhythmicMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Amitriptylinetricyclic antidepressantMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Amoxapinetricyclic antidepressantMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • AtazanavirantiretroviralMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Atracuriumneuromuscular blockerMinor

    Concomitant administration of succinylcholine, similar neuromuscular blocking agents, or cholinergic agonists may lead to synergistic effect. (Memantine and donepezil label, Drug interactions)

  • AtropineanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Atropine and pralidoximeanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • BenztropineanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Botulinum toxin type Aneuromuscular blockerMinor

    Concomitant administration of succinylcholine, similar neuromuscular blocking agents, or cholinergic agonists may lead to synergistic effect. (Memantine and donepezil label, Drug interactions)

  • Brinzolamidecarbonic anhydrase inhibitorMinor

    Urine pH is altered by diet, drugs (e.g., carbonic anhydrase inhibitors, sodium bicarbonate) and clinical state of the patient (e.g., renal tubular acidosis or severe infections of the urinary tract). (Memantine and donepezil label, Drug interactions)

  • CarbinoxamineantihistamineMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • ChlorpheniramineantihistamineMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • ChlorpromazineantipsychoticMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • CimetidineH2 blockerMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Cisatracuriumneuromuscular blockerMinor

    Concomitant administration of succinylcholine, similar neuromuscular blocking agents, or cholinergic agonists may lead to synergistic effect. (Memantine and donepezil label, Drug interactions)

  • Clarithromycinmacrolide antibioticMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • ClemastineantihistamineMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Clomipraminetricyclic antidepressantMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • ClozapineantipsychoticMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Cyclobenzaprinemuscle relaxantMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • CyclopentolateanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • CyclosporineimmunosuppressantMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • CyproheptadineantihistamineMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • DarifenacinanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • DarunavirantiretroviralMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Darunavir and cobicistatantiretroviralMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Desipraminetricyclic antidepressantMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • DexchlorpheniramineantihistamineMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Dichlorphenamidecarbonic anhydrase inhibitorMinor

    Urine pH is altered by diet, drugs (e.g., carbonic anhydrase inhibitors, sodium bicarbonate) and clinical state of the patient (e.g., renal tubular acidosis or severe infections of the urinary tract). (Memantine and donepezil label, Drug interactions)

  • Diltiazemcalcium channel blockerMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • DimenhydrinateantihistamineMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • DiphenhydramineantihistamineMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Dipyridamoleantiplatelet agentMinor

    Cholinesterase Inhibitors Dipyridamole may counteract the anticholinesterase effect of cholinesterase inhibitors, thereby potentially aggravating myasthenia gravis. (Dipyridamole label, Drug interactions)

  • DisopyramideantiarrhythmicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Donepezilcholinesterase inhibitorMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Dorzolamidecarbonic anhydrase inhibitorMinor

    Urine pH is altered by diet, drugs (e.g., carbonic anhydrase inhibitors, sodium bicarbonate) and clinical state of the patient (e.g., renal tubular acidosis or severe infections of the urinary tract). (Memantine and donepezil label, Drug interactions)

  • Dorzolamide and timololcarbonic anhydrase inhibitorMinor

    Urine pH is altered by diet, drugs (e.g., carbonic anhydrase inhibitors, sodium bicarbonate) and clinical state of the patient (e.g., renal tubular acidosis or severe infections of the urinary tract). (Memantine and donepezil label, Drug interactions)

  • Doxepintricyclic antidepressantMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • DoxylamineantihistamineMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Doxylamine and pyridoxineantihistamineMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • DronedaroneantiarrhythmicMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Erythromycinmacrolide antibioticMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • EverolimusimmunosuppressantMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • FesoterodineanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • FlavoxateanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Fluconazoleazole antifungalMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • FosamprenavirantiretroviralMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • FosaprepitantCYP3A4 inhibitorMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Galantaminecholinesterase inhibitorMinor

    Use of Donepezil with Cholinomimetics and Other Cholinesterase Inhibitors A synergistic effect may be expected when cholinesterase inhibitors, including donepezil hydrochloride, are given concurrently with succinylcholine, similar neuromuscular blocking agents, or cholinergic agonists such as bethanechol. (Memantine and donepezil label, Drug interactions)

  • GlycopyrrolateanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • HydroxyzineantihistamineMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • HyoscyamineanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • ImatinibCYP3A4 inhibitorMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Imipraminetricyclic antidepressantMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • IncobotulinumtoxinAneuromuscular blockerMinor

    Concomitant administration of succinylcholine, similar neuromuscular blocking agents, or cholinergic agonists may lead to synergistic effect. (Memantine and donepezil label, Drug interactions)

  • IpratropiumanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Ipratropium and albuterolanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • IsoniazidantibioticMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Itraconazoleazole antifungalMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • IvacaftorCYP3A4 inhibitorMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Ketoconazoleazole antifungalMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • LenacapavirantiretroviralMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • MeclizineantihistamineMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Methazolamidecarbonic anhydrase inhibitorMinor

    Urine pH is altered by diet, drugs (e.g., carbonic anhydrase inhibitors, sodium bicarbonate) and clinical state of the patient (e.g., renal tubular acidosis or severe infections of the urinary tract). (Memantine and donepezil label, Drug interactions)

  • MethscopolamineanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • MethylprednisolonecorticosteroidMinor

    Anticholinesterases : Concomitant use of anticholinesterase agents and corticosteroids may produce severe weakness in patients with myasthenia gravis. (Methylprednisolone label, Drug interactions)

  • MifepristoneCYP3A4 inhibitorMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Mirabegronbeta-adrenergic agonistMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • NefazodoneantidepressantMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Neostigminecholinesterase inhibitorMinor

    Use of Donepezil with Cholinomimetics and Other Cholinesterase Inhibitors A synergistic effect may be expected when cholinesterase inhibitors, including donepezil hydrochloride, are given concurrently with succinylcholine, similar neuromuscular blocking agents, or cholinergic agonists such as bethanechol. (Memantine and donepezil label, Drug interactions)

  • Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Nortriptylinetricyclic antidepressantMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • OlanzapineantipsychoticMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Olanzapine and fluoxetineantipsychoticMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Omeprazole and sodium bicarbonateproton pump inhibitorMinor

    Urine pH is altered by diet, drugs (e.g., carbonic anhydrase inhibitors, sodium bicarbonate) and clinical state of the patient (e.g., renal tubular acidosis or severe infections of the urinary tract). (Memantine and donepezil label, Drug interactions)

  • OnabotulinumtoxinAneuromuscular blockerMinor

    Concomitant administration of succinylcholine, similar neuromuscular blocking agents, or cholinergic agonists may lead to synergistic effect. (Memantine and donepezil label, Drug interactions)

  • Orphenadrinemuscle relaxantMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • PalbociclibCYP3A4 inhibitorMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • ParoxetineSSRIMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • PerampanelanticonvulsantMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Posaconazoleazole antifungalMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • PrednisolonecorticosteroidMinor

    Anticholinesterase agents: Concomitant use of anticholinesterase agents and corticosteroids may produce severe weakness in patients with myasthenia gravis. (Prednisolone label, Drug interactions)

  • PrednisonecorticosteroidMinor

    Anticholinesterase Agents Concomitant use of anticholinesterase agents and corticosteroids may produce severe weakness in patients with myasthenia gravis. (Prednisone label, Drug interactions)

  • ProchlorperazineantipsychoticMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • PromethazineantihistamineMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Protriptylinetricyclic antidepressantMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • QuinidineantiarrhythmicMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • RanolazineQT-prolonging drugMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Rivastigminecholinesterase inhibitorMinor

    Use of Donepezil with Cholinomimetics and Other Cholinesterase Inhibitors A synergistic effect may be expected when cholinesterase inhibitors, including donepezil hydrochloride, are given concurrently with succinylcholine, similar neuromuscular blocking agents, or cholinergic agonists such as bethanechol. (Memantine and donepezil label, Drug interactions)

  • Rocuroniumneuromuscular blockerMinor

    Concomitant administration of succinylcholine, similar neuromuscular blocking agents, or cholinergic agonists may lead to synergistic effect. (Memantine and donepezil label, Drug interactions)

  • Sodium bicarbonateantacidMinor

    Urine pH is altered by diet, drugs (e.g., carbonic anhydrase inhibitors, sodium bicarbonate) and clinical state of the patient (e.g., renal tubular acidosis or severe infections of the urinary tract). (Memantine and donepezil label, Drug interactions)

  • SolifenacinanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Suvorexantsedative-hypnoticMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • ThioridazineantipsychoticMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Ticagrelorantiplatelet agentMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • TiotropiumanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • TolterodineanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • TriamcinolonecorticosteroidMinor

    Anticholinesterases: Concomitant use of anticholinesterase agents and corticosteroids may produce severe weakness in patients with myasthenia gravis. (Triamcinolone label, Drug interactions)

  • TrihexyphenidylanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Trimipraminetricyclic antidepressantMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • TrospiumanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • UmeclidiniumanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Umeclidinium and vilanterolanticholinergicMinor

    NAMZARIC may interfere with anticholinergic medications. (Memantine and donepezil label, Drug interactions)

  • Vecuroniumneuromuscular blockerMinor

    Concomitant administration of succinylcholine, similar neuromuscular blocking agents, or cholinergic agonists may lead to synergistic effect. (Memantine and donepezil label, Drug interactions)

  • Verapamilcalcium channel blockerMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • Voriconazoleazole antifungalMinor

    Effect of Other Drugs on the Metabolism of Donepezil Inhibitors of CYP3A4 (e.g., ketoconazole) and CYP2D6 (e.g., quinidine), inhibit donepezil metabolism in vitro . (Memantine and donepezil label, Drug interactions)

  • ZonisamideanticonvulsantMinor

    Urine pH is altered by diet, drugs (e.g., carbonic anhydrase inhibitors, sodium bicarbonate) and clinical state of the patient (e.g., renal tubular acidosis or severe infections of the urinary tract). (Memantine and donepezil label, Drug interactions)

No significant interaction reported (1)

  • RisperidoneantipsychoticNo interaction

    In drug interaction studies, oral RISPERDAL did not significantly affect the pharmacokinetics of donepezil and galantamine, which are metabolized by CYP 2D6. (Risperidone label, Drug interactions)

Check Memantine and donepezil against everything you take. Add your full list; every pair is checked at once.

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Not medical advice. Severity reflects the label's wording, not your circumstances. A "major" flag can be routine under supervision and a "minor" one can matter at high doses. Ask a pharmacist.