What it is used for
- Treating Parkinson's symptoms.
- Treating movement side effects caused by some medicines.
- Preventing and treating influenza A.
- Shingles in older or frail patients, to reduce long-lasting pain.
How it is used
- Take it exactly as your doctor prescribed; your doctor sets the dose.
- The IV solution is given by a doctor or nurse.
- Do not change the dose or stop it without checking with your doctor.
Before and while using it
- It may cause drowsiness or dizziness; take care when driving or using machines.
- Do not stop it suddenly if you take it for Parkinson's.
- Tell your doctor if you have kidney problems.
- Tell your doctor about all other medicines and herbal products you take.
Get medical help straight away if
- Your face, lips or tongue swell, or you find it hard to breathe.
- You get a severe rash, blistering or peeling skin.
- A side effect worries you or doesn’t go away: contact your doctor or pharmacist.
Questions about this medicine?
Talk to a doctor by video, or send your question by text.
Source: National drug formulary 2025, page 90
This guide is general information and doesn’t replace advice from your doctor or pharmacist. Don’t start, stop or change a medicine without asking them, and always read the leaflet in the pack.