Dramamine (Dimenhydrinate) Dosage for a 22-Month-Old Child with Motion Sickness
For a 22-month-old child with motion sickness, dimenhydrinate (Dramamine) should be dosed at 1-2 mg/kg per dose, not exceeding 25 mg per dose, and can be given every 6-8 hours as needed.
Dosage Calculation
For a 22-month-old child:
- Weight-based dosing: 1-2 mg/kg per dose 1
- Typical weight of 22-month-old: approximately 10-12 kg
- Calculated dose range: 10-24 mg per dose
- Maximum single dose: 25 mg 1
- Frequency: Every 6-8 hours as needed, not to exceed 3 doses in 24 hours
Administration Considerations
Forms Available:
- Tablets (50 mg - will need to be divided)
- Liquid formulation (12.5 mg/5 mL)
- Chewable tablets (25 mg)
Timing:
- Administer 30-60 minutes before travel for best preventive effect
- Can be given with food to reduce gastrointestinal side effects
Safety Precautions
Important Warnings:
- Dimenhydrinate can cause significant sedation in young children
- Monitor for paradoxical excitation, which can occur in young children
- Avoid use for more than 2-3 days without medical supervision
Potential Side Effects:
- Drowsiness (most common)
- Dry mouth
- Blurred vision
- Urinary retention
- Constipation
- Potential for seizures with overdose 2
Monitoring
- Monitor for excessive sedation
- Ensure adequate hydration
- Discontinue if any unusual symptoms develop
- Watch for signs of overdose: extreme drowsiness, seizures, hallucinations
Alternative Approaches
For children under 2 years, consider non-pharmacological approaches first:
- Position child to see out the window
- Ensure good ventilation
- Frequent stops during car travel
- Distraction techniques (music, toys)
- Small, frequent snacks (avoid heavy meals before travel)
Caution
A case report documented seizures in a 13-month-old who received excessive dimenhydrinate dosing (23 mg/kg total over 2 days) 2. This highlights the importance of adhering to recommended dosages and not exceeding the maximum daily amount, especially in young children.
Remember that while dimenhydrinate is commonly used for motion sickness in children, its use in very young children should be approached with caution and for limited duration.