About dimenhydri nate
Antihistamine; anti-nausea medicine
Used for
- Prevention and treatment of motion sickness
- Short-term relief of nausea and vomiting
Usual adult dose
Motion sickness: 50–100 mg every 4–6 hours; maximum 400 mg daily.
Usual dose in children
Age 2–5: 12.5–25 mg every 6–8 hours, maximum 75 mg daily. Age 6–11: 25–50 mg every 6–8 hours, maximum 150 mg daily. Not recommended under age 2 unless prescribed.
Common side effects
- Sleepiness or dizziness
- Dry mouth, blurred vision, or constipation
- Difficulty urinating
- Confusion, especially in older adults
Important warnings
- May impair alertness; avoid driving if drowsy.
- Avoid alcohol and other medicines that cause sleepiness.
- Use caution with glaucoma, breathing problems, or difficulty urinating.
- Seek urgent help for severe allergic reactions or unusual agitation.
Pregnancy
Safety information is limited. Use during pregnancy only when a healthcare professional considers it necessary.
Breastfeeding
May cause infant drowsiness; repeated use may reduce milk supply. Seek professional guidance.
Interactions
- Alcohol, sedatives, opioids, and other drowsiness-causing medicines increase sedation.
- Other anticholinergic medicines may increase dry mouth, constipation, blurred vision, or urinary problems.
- Monoamine oxidase inhibitors may intensify anticholinergic effects.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.