Unisom® SleepTabs® contain doxylamine succinate, a non-habit-forming antihistamine that makes you sleepy by blocking the effects of histamine in the body, which helps you fall asleep fast and sleep through the night. SleepTabs® are FDA approved, clinically tested, and proven effective.

Doxylamine (Unisom SleepTabs) is an antihistamine, which is in many other over-the-counter products. Taking more than one medication containing an antihistamine can lead to serious side effects, such as blurry vision, reddening of skin, and confusion.

Adults and children 12 years of age and over: Take 1 tablet at bedtime if needed, or as directed by a doctor. If you feel drowsy in the morning, consult a doctor or pharmacist as you may require a lower dose (25 mg).

Directions: Adults and children 12 years of age and over: 2 tablets (25 mg each) at bedtime if needed, or as directed by a doctor. sleeplessness persists continuously for more than 2 weeks. Insomnia may be a symptom of serious underlying medical illness.

Unisom Simple Slumbers® is 100% drug free. It contains a proprietary sleep blend of 5 mg melatonin, passionflower, lemon balm, and vitamin B6 for a good night's sleep. Melatonin provides a triple effect by allowing you to fall asleep fast, sleep soundly, and wake refreshed.

Melatonin Melatonin: Melatonin is considered one of the safest over-the-counter sleep aids, with few side effects. A prescription drug called ramelteon is designed to mimic the effects of melatonin. Like melatonin, it is not considered habit-forming and it does not affect balance.

In summary, Unisom is a brand of sleep aids that can be effective at helping people fall asleep and stay asleep. It is available in several forms and is usually taken by mouth just before bedtime. While it can be helpful in the short term, it is not a long-term solution for insomnia and can have potential side effects.

Diphenhydramine also causes drowsiness, and can be used by adults and children 12 years of age and older who occasionally have trouble sleeping (insomnia). The effects of diphenhydramine can last for up to 6 hours. If you have trouble sleeping, do not take this medication for more than a few nights in a row.

Melatonin is likely the safest OTC sleep aid. Excess melatonin is quickly cleared from the body and does not accumulate. Side effects are rare but may include headache, nausea, and vivid dreams.

What is the strongest sleep aid over the counter? Doxylamine is one of the strongest OTC sleep aids. It is an antihistamine.

Use exactly as directed on the label, or as prescribed by your doctor. Unisom Sleep Gels is only for short-term use until your symptoms clear up. Taking too much Unisom Sleep Gels can lead to serious heart problems, seizures, coma, or death.

Side effects that you should report to your care team as soon as possible: Allergic reactions - skin rash, itching, hives, swelling of the face, lips, tongue, or throat. Sudden eye pain or change in vision such as blurry vision, seeing halos around lights, vision loss. Trouble passing urine.