Medication Profile: Dimenhydrinate
Summary or Key Points
Dimenhydrinate, an effective treatment for motion sickness and vertigo, is an antihistamine used to prevent and treat nausea, vomiting, and dizziness associated with these conditions. It comes in various forms and strengths, and has specific dosing instructions. Always consult a healthcare provider before adjusting your dose. Telemedicine offers a convenient way to speak to a provider about this medication and its appropriate use for your needs.
Names of Medication
US Brand Name: Dramamine (Dimenhydrinate)
A ‘generic name’ is the official medical name for the active ingredient in the medication, which in this case is Dimenhydrinate (shown in parenthesis). The brand name, Dramamine, is the name given by the manufacturer.
Pharmacologic Category
Dimenhydrinate belongs to the class of medications known as antihistamines, specifically those used for their antiemetic properties. Other medications in this category include meclizine (Antivert, Bonine), promethazine (Phenergan), and cyclizine (Marezine).
Dosing
Always consult your healthcare provider or one of our accessible telemedicine experts before adjusting your medication dose. The typical dosing for Dimenhydrinate is as follows:
- Motion Sickness: Adults can take 50-100 mg every 4-6 hours as needed, not exceeding 400 mg in 24 hours. This medication should be taken 30 minutes before exposure to motion and repeated every 4-6 hours as needed.
- Vertigo: For adults, the recommended dose is 25-100 mg every 4-6 hours, not exceeding 400 mg per day.
Dosage Forms and Strengths
Dimenhydrinate is available in the following forms and strengths:
- Tablets: 50 mg
- Chewable tablets: 50 mg
- Liquid form: 12.5 mg/5 mL
- Injection: 50 mg/mL
Administration Instructions
Dimenhydrinate should be taken with or without food. For motion sickness, the first dose should ideally be taken 30 minutes to 2 hours before traveling. The chewable tablets must be chewed before swallowing. If using the liquid form, use a special measuring spoon or device to ensure the correct dose.
Adverse Reactions and Side Effects
While Dimenhydrinate is generally well tolerated, it can cause some side effects. If these persist or worsen, please consult with your doctor or one of our telemedicine experts right away:
- Common (may affect up to 1 in 10 people): Drowsiness, dry mouth/nose/throat, blurred vision, and dizziness.
- Uncommon (may affect up to 1 in 100 people): Restlessness, excitation, nervousness, and insomnia.
- Rare (may affect up to 1 in 1,000 people): Tinnitus (ringing in the ears), hypotension (low blood pressure), and palpitations (unusually strong
or rapid heartbeats). - Very Rare (may affect up to 1 in 10,000 people): Allergic reactions, including rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, and trouble breathing.
If you experience any of these side effects, it’s crucial to consult with your healthcare provider immediately. You can quickly contact one of our telemedicine providers for advice and guidance.