Common side effects of Memantine include Confusion (279), Vomiting (275), Hypertension (250). Serious side effects include Hallucination (299) and Seizure (258). Memantine is classified as Medicine. Always consult a doctor if side effects persist.

Side Effects GuideAI-VerifiedMedicine

Memantine Side Effects

Complete guide to Memantine side effects — what's common, what's serious, which body systems are affected, and when to see a doctor.

Body impact map

Common
Serious
9+
Common effects
5
Serious effects
5
Body systems

Common Side Effects

Usually mild · often resolve on their own

These side effects may occur in some patients taking Memantine. Most are mild and improve as your body adjusts. Tell your doctor if any persist or worsen.

Confusion (279)
Mental / Nervous
Vomiting (275)
Stomach / GI
Hypertension (250)
Whole body
Dyspnea (234)
Whole body
Oedema (75)
Whole body
Bradycardia (50)
Whole body
Jaundice (25)
Liver
Arrhythmia (25)
Heart / Lungs
Gas (488)
Stomach / GI
Somnolence (279)
Whole body

Serious Side Effects

Rare but urgent · seek immediate medical help

Stop taking Memantine and seek immediate medical help if any of the following occur. Call 112 for emergencies.

Emergency · 112
Hallucination (299)
Mental / Nervous
Seizure (258)
Mental / Nervous
Seizures (258)
Mental / Nervous
Stevens Johnson syndrome (238)
Whole body
Hallucinations (40)
Mental / Nervous

Not a complete list. Report any unusual symptoms to your doctor immediately.

How to Minimize Side Effects

Simple steps that help

  • Take Memantine exactly as prescribed by your doctor — never change the dose yourself.
  • Follow dosage timing instructions carefully (with food / empty stomach / at bedtime as directed).
  • Do not stop Memantine suddenly without consulting your doctor — sudden discontinuation can be risky.
  • Report any new or unusual symptoms to your doctor promptly — early detection prevents complications.
  • Check drug interactions with GoDavaii AI before starting any new medicine, supplement, or even herbal remedy.
  • Avoid alcohol while on Memantine unless your doctor has confirmed it is safe.
AI-Verified · Cross-checked against 40,000+ interaction database

Not medical advice

Individual responses to Memantine vary — age, weight, existing conditions, and other medicines all matter. Always consult your doctor for personalized advice. For emergencies, call 112.

Frequently Asked Questions

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