Doxylamine (Unisom)
$0.65
Unisom is a short term sleep aid used for occasional sleeplessness, helping you fall asleep more easily.
Drug Information
5 reviews for Doxylamine (Unisom)
Unisom contains doxylamine, a sedating antihistamine. It is used as a short-term sleep aid for occasional trouble sleeping.
What is it used for?
- Occasional sleeplessness in adults
- Morning sickness in pregnancy (only when combined with vitamin B6 and prescribed by a doctor)
How does it work?
Doxylamine blocks histamine in the brain, which makes you feel sleepy.
This information is written in simple words to help you understand this product. It does not replace advice from your doctor or pharmacist.
Read these points before you start. If any of them apply to you, talk to your doctor or pharmacist first.
- It is for short-term use only (up to 7 to 10 nights). See your doctor if you still have trouble sleeping after 2 weeks.
- Do not take it if you need to drive, operate machines or be fully alert within 7 to 8 hours.
- Do not drink alcohol with it. It can make you much more drowsy.
- Tell your doctor if you have glaucoma, an enlarged prostate or trouble passing urine, asthma or COPD, liver problems or epilepsy.
- Older people are more likely to feel confused, dizzy or fall.
- Do not give it to children unless a doctor says so.
- Do not take it with other medicines that make you sleepy or with other antihistamines.
- Tell your doctor or pharmacist about every other medicine, vitamin or herbal product you use.
- Keep this product out of the reach and sight of children.
Like all medicines, Unisom can cause side effects, but not everybody gets them.
Common side effects
- Feeling drowsy the next morning
- Dry mouth
- Dizziness
- Blurred vision
- Constipation
These are usually mild and often get better as your body gets used to it. Tell your doctor if they bother you or do not go away.
Stop using it and get medical help straight away if you notice:
- A fast or uneven heartbeat
- Being unable to pass urine
- Confusion, seeing things that are not there, or a fit (seizure)
This is not a complete list. If you notice anything unusual, ask your doctor or pharmacist.
- Take it about 30 minutes before bedtime.
- The usual adult dose is 25 mg.
- Swallow with water.
- Do not take it for more than 2 weeks without talking to your doctor.
If you miss a dose: Only take it when you need it, at bedtime. Do not take it in the middle of the night unless you can sleep for 7 to 8 more hours.
If you use too much: Contact your doctor, a poison control centre or your local emergency number straight away, even if you feel fine. Take the pack with you.
How to store it: Keep it in its original pack at room temperature (below 25°C / 77°F), away from heat, damp and direct sunlight. Do not use it after the expiry date.
- QCan I take Unisom every night?
- A
It is only for short-term use. Your body gets used to it and it may stop working. If sleep problems last more than 2 weeks, see your doctor.
- QWhy do I feel groggy in the morning?
- A
The effect can last into the next day. Take it only when you can sleep for 7 to 8 hours, and try a lower dose.
- QWhat else can help me sleep?
- A
Going to bed at the same time, avoiding screens and caffeine in the evening, and keeping your bedroom dark and cool can all help.

Zoey Alvarez –
I have ordered from here before and it went well again. Delivery was smooth with no surprises. I compared a few sites and this one had the better price. Another good thing: payment went through smoothly on the first try. Nothing negative to say, it was a good one.
Luca Mensah –
Everything inside was snug and protected. I found the cost to be better than what I saw elsewhere. The product matched the description on the page. Thanks for the easy experience!
Valentina Henderson –
Just received my Unisom and wanted to share how it went. Good communication, I always knew what was happening with my order. On top of that, the steps at checkout were easy to follow. Solid experience, nothing to complain about.
Andrew Rao –
Everything with my Unisom was in order when I opened the box. It was affordable and the total at checkout matched what I expected.
Hussein Ndlovu –
I wanted Doxylamine and this site made it simple to order. Shipping was fast for me. Really happy with this order.