Memantine

Dosage Forms Available

• Memantine is available for use via the oral route in immediate-release tablets,extended-release (long-acting) capsule and oral solution.

Age and Dose Restrictions

• Memantine is meant for adults and elderly patients, specifically those diagnosed with moderate to severe Alzheimer's disease. It is not recommended for children or adolescents. Always consult your doctor and adhere to the prescribed dose.

Contraindications

• Memantine is contraindicated in patients who have recently experienced a heart attack or if they are suffering from congestive heart failure. This medicine should also be used cautiously in patients with severe renal impairment or a history of seizures.

Other Medications to Avoid

• Memantine may interact with other NMDA receptor antagonists (e.g., amantadine, ketamine) and anticholinergics (e.g., dimenhydrinate, clidinium).

Overdose and Missed Dose

• An overdose of Memantine may lead to side effects such as restlessness, shortness of breath, high blood pressure, and loss of consciousness. In case of a suspected overdose, consult your doctor immediately.
• If you miss a dose of this medicine, take it as soon as you remember. However, if it is close to the time for your next dose, skip the missed dose and return to your regular dosing schedule.

Management of Side Effects

Most side effects are temporary and generally harmless and resolve when discontinuing this medicine. However, if you experience any severe side effects or worsening symptoms, please consult your doctor.

• To manage dizziness or drowsiness, try taking Memantine at bedtime.
• Ensure adequate fluid intake to prevent constipation.
• Rest and avoid sudden movements in case of dizziness or confusion.

Use in Driving and Operating Machinery

• Memantine may cause side effects such as dizziness or drowsiness which can affect your ability to drive or operate machinery. Hence, you should avoid these activities if you experience such symptoms after taking this medicine.

Use in Pregnancy and Lactation

• This medicine is not recommended during pregnancy or breastfeeding. Always consult your doctor before using this medicine during pregnancy or breastfeeding.

Caution in Other Conditions

• Patients with severe renal impairment should exercise caution when taking Memantine as they may have significantly higher drug exposure compared to patients with normal renal function. Additionally, patients with a history of uncontrolled hypertension should be cautious while taking this medication.

Special Dietary and Lifestyle Recommendations

• Engage in regular mental exercises such as puzzles, reading, or learning a new skill to stimulate cognitive function.
• Ensure adequate hydration to help manage potential side effects like constipation.