Doxylamine Succinate
Nytol is an over-the-counter sleep aid designed to help adults who have difficulty falling asleep. It contains the antihistamine diphenhydramine, which produces a sedative effect to promote drowsiness. This medication is intended for short-term use only.
Nytol is a brand-name sleep aid used to temporarily relieve insomnia in adults by promoting drowsiness through its antihistamine active ingredient.
Key facts at a glance
- RxNorm
- 1092413
- Generic
- Nytol
- 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.
Temporary relief of insomnia and difficulty falling asleep in adults. It is not intended for long-term treatment of sleep problems.
Nytol contains diphenhydramine, an antihistamine that blocks histamine H1 receptors in the brain, producing a sedating effect that helps users fall asleep.
May cause next-day drowsiness, dry mouth, and blurred vision. Should not be used with alcohol or other CNS depressants. Not recommended for elderly patients due to anticholinergic risks. Use should be limited to 2 weeks or less. Consult a doctor before use if pregnant, breastfeeding, or taking other medications.
Official drug label
WellAlly may earn a referral fee from linked resources at no extra cost to you. Editorial content is never influenced by commercial relationships.
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 July 26, 2026. · Read our editorial policy