Cautions with other medicines
Some medicines do not mix well with memantine. They can increase the risk of side effects or stop memantine working as well as it should.
Tell your doctor if you or the person you're caring for is taking:
- amantadine, a medicine used for Parkinson's disease and multiple sclerosis
- ketamine, for depression or severe pain
- dextromethorphan, used in cough mixtures
- warfarin, a medicine used to help prevent blood clots
- medicines for mental health conditions such as chlorpromazine, haloperidol or olanzapine
Also tell the hospital if you, or the person you're caring for, is due to have an operation and needs to be put to sleep (have a general anaesthetic).
These are not all the medicines that affect the way memantine works. Check the leaflet inside your medicine packet to find out more.
Mixing memantine with herbal remedies and supplements
There's not enough information to say that herbal remedies and supplements are safe to take with memantine. They're not tested in the same way as pharmacy and prescription medicines. They're generally not tested for the effect they have on other medicines.
Important: Medicine safety
Tell your doctor or pharmacist if you're taking any other medicines, including herbal remedies, vitamins or supplements.