Memantine


Concise Prescribing Info
Indications/Uses
Moderate to severe dementia in Alzheimer's disease.
Dosage/Direction for Use
Adult: PO Initial: 5 mg once daily for the 1st wk, increased in wkly increments of 5 mg. Max: 20 mg/day.
Administration
May be taken with or without food.
Special Precautions
Patient w/ CV disease, epilepsy, history of convulsions or those w/ predisposing factors for epilepsy. Conditions that may increase urinary pH (e.g. drastic dietary changes). Moderate to severe renal and severe hepatic impairment. Pregnancy and lactation. Patient Counselling May impair ability to drive or operate machinery. Monitoring Parameters Monitor cognitive function; periodic ophth examination.
Adverse Reactions
Headache, dizziness, constipation, HTN, somnolence, anxiety, confusion, hallucinations, fatigue, abnormal gait, hypertonia, vomiting, fungal infections, cystitis, thromboembolism, increased libido, psychotic reactions, pancreatitis; agranulocytosis, leucopenia (including neutropenia), thrombocytopenia, pancytopenia, thrombotic thrombocytopenic purpura, CHF, hepatitis, suicidal ideation, acute renal failure (including increased creatinine and renal impairment), Stevens-Johnson syndrome.
Drug Interactions
Increased risk of adverse effects w/ amantadine, ketamine or dextromethorphan. May decrease the effects of barbiturates and neuroleptics. May increase the effects of L-dopa, dopaminergic agonists and anticholinergics. May alter the effect of antispasmodics (e.g. dantrolene, baclofen). Decreased clearance w/ carbonic anhydrase inhibitors and Na bicarbonate. May potentially increase plasma levels of cimetidine, procainamide, ranitidine, quinidine, quinine, nicotine. May decrease serum level of hydrochlorothiazide.
ATC Classification
N06DX01 - memantine ; Belongs to the class of other anti-dementia drugs.
Disclaimer: This information is independently developed by CIMS based on memantine from various references and is provided for your reference only. Therapeutic uses, prescribing information and product availability may vary between countries. Please refer to CIMS Product Monographs for specific and locally approved prescribing information. Although great effort has been made to ensure content accuracy, CIMS shall not be held responsible or liable for any claims or damages arising from the use or misuse of the information contained herein, its contents or omissions, or otherwise. Copyright © 2021 CIMS. All rights reserved. Powered by CIMSAsia.com
Register or sign in to continue
Asia's one-stop resource for medical news, clinical reference and education
Sign up for free
Already a member? Sign in