Doxylamine
Wal-Som (Doxylamine) is a sedating antihistamine medication primarily used as a sleep aid to help individuals who have difficulty falling asleep. It may also be used temporarily to relieve allergy symptoms or cold symptoms such as sneezing and runny nose.
Wal-Som is an over-the-counter antihistamine sleep aid that helps promote sleep by blocking histamine receptors.
Key facts at a glance
- RxNorm
- 1746506
- Generic
- Wal-Som (Doxylamine)
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Temporarily relieves occasional sleeplessness and may also help with symptoms of hay fever, allergies, or the common cold such as sneezing, runny nose, and itchy eyes.
Works as an antihistamine by blocking histamine H1 receptors in the body, which produces a sedating effect that helps facilitate sleep.
May cause significant drowsiness the next day. Avoid alcohol and operating machinery while taking this medication. Should only be used for short-term treatment of insomnia. Consult a doctor if sleeplessness persists beyond 2 weeks. Not recommended for use in children under 12 without medical advice.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 26, 2026. · Read our editorial policy