Dimenhydrinate
Also sold as: Dramamine, Gravinate
No prescription neededNausea and vomiting
Comes as:TabletSyrupInjection
Usual adult dose
Usual adult dose: 50 to 100 mg every 4 to 6 hours when needed. Do not take more than 400 mg in 24 hours. For travel sickness, take the first dose 30 minutes before travel.
Your doctor may give you a different dose. Children's doses depend on weight.
Side effects
Common
- drowsiness
- dry mouth
- dizziness
- blurred vision
Serious — get help
Stop taking it and see a doctor straight away if you notice:
- confusion or hallucinations
- fast or irregular heartbeat
- inability to pass urine
- fits
Do not take it, or take care, if
- Glaucoma or enlarged prostate
- Children under 2 years
- Epilepsy or asthma (use with caution)
- Do not drive or use machines; avoid alcohol
Interactions
Medicines that can react with this one.
Moderate2 medicinesTake together only with care. Ask your doctor or pharmacist.
- Amitriptyline
Both have anticholinergic effects; more dry mouth, constipation and confusion.
- Diazepam
Together they cause more drowsiness and slowed reactions.