Doxylamine tablet?

Doxylamine is an over-the-counter antihistamine mainly used as a short-term sleep aid. It’s the “Sleep” ingredient in products like Unisom SleepTabs and is also found in some nighttime cold/flu medicines.

Common info:
- Usual adult dose for sleep: 25 mg to 50 mg taken at bedtime (most people take 25 mg). Do not exceed 50 mg in 24 hours.
- How to take: swallow with water. Can be taken with or without food. Do not crush or chew tablets unless the label says it’s okay.
- Onset and effect: helps you fall asleep and stay asleep for a short period.
- Common side effects: drowsiness (the main one), dry mouth, dizziness, constipation; in some people may cause confusion or urinary retention, especially in older adults.
- Drowsiness warning: avoid driving or operating heavy machinery until you know how it affects you. Avoid alcohol and other sedatives.
- Who should use caution: older adults (higher risk of confusion, falls), people with glaucoma, enlarged prostate, or trouble urinating should use with caution. If you’re pregnant or breastfeeding, talk to a clinician first.
- Interactions: avoid other sedating medicines (other antihistamines, alcohol, sedatives, certain antidepressants). Check with a clinician if you’re taking prescription meds.
- Children: many labels say not for children under 12; check the product’s age recommendation.

Pregnancy note:
- Doxylamine is sometimes used with vitamin B6 (pyridoxine) to treat nausea in pregnancy in prescription products, but doxylamine alone should only be used in pregnancy under medical advice.

If you’re considering taking doxylamine, tell me:
- Are you taking it for sleep or for allergy/can’t sleep due to something else?
- Any other medicines you’re taking (prescription or OTC)?
- Any health conditions (glaucoma, enlarged prostate, liver/kidney issues, pregnancy)?
- Age?

I can tailor dosing info and safety tips to your situation, or help you interpret a product label.