ZzzQuil Nighttime Sleep-Aid 25 mg/1 (Diphenhydramine Hydrochloride CAPSULE, GELATIN COATED) 25 mg/1

ZzzQuil Nighttime Sleep-Aid 25 mg/1 capsules provide relief for occasional sleeplessness. This over-the-counter sleep aid contains diphenhydramine hydrochloride, a common antihistamine known for its sedative effects. Ideal for those seeking temporary relief from insomnia or difficulty falling asleep.

Strength

25 mg/1

Pack Size

2 CAPSULE, GELATIN COATED in 1 BLISTER PACK (37000-501-02)

Manufacturer / TM Owner

The Procter & Gamble Manufacturing Company

Select Quantity

Pack/s

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Indications & Clinical Uses

ZzzQuil Nighttime Sleep-Aid is primarily used to help individuals fall asleep faster and stay asleep longer. It is often taken by those experiencing occasional sleeplessness or insomnia. The active ingredient, diphenhydramine hydrochloride, works by blocking histamine receptors in the brain, which can induce drowsiness. This makes it a popular choice for those looking for a non-prescription solution to sleep disturbances.

Side Effects

Common effects of ZzzQuil Nighttime Sleep-Aid include drowsiness and relaxation, which help users fall asleep more easily. Some individuals may also experience mild side effects such as dry mouth, blurred vision, or dizziness. These effects are typically temporary and subside as the medication wears off.

Precautions & Warnings

It is important to use ZzzQuil Nighttime Sleep-Aid as directed on the packaging. Avoid operating heavy machinery or driving after taking this medication, as it can cause drowsiness. Individuals with certain medical conditions, such as glaucoma or enlarged prostate, should consult a healthcare provider before use. Always store the medication in a cool, dry place away from children.

Avoid Interactions

ZzzQuil Nighttime Sleep-Aid may interact with other medications, including antidepressants, sedatives, and alcohol. Consuming alcohol while taking this sleep aid can enhance its sedative effects and increase the risk of side effects. It is advisable to avoid alcohol and consult a healthcare provider if you are taking other medications that may interact with diphenhydramine hydrochloride.

Frequently Asked Questions

ZzzQuil Nighttime Sleep-Aid is used to help individuals fall asleep faster and stay asleep longer, making it suitable for occasional sleeplessness or insomnia.

Take ZzzQuil Nighttime Sleep-Aid orally, preferably before bedtime, following the dosage instructions on the packaging.

No, it is not recommended to drive or operate heavy machinery after taking ZzzQuil Nighttime Sleep-Aid, as it can cause drowsiness.

Common side effects include drowsiness, dry mouth, blurred vision, and dizziness. These effects are usually temporary.

It is advisable to consult a healthcare provider before taking ZzzQuil Nighttime Sleep-Aid with other medications, as it may interact with antidepressants, sedatives, and alcohol.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated: 29 Jul 2026

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