Temporarily relieves these symptoms due to the common cold, hay fever, or other upper respiratory allergies: runny nose sneezing itching of the nose o.
From the official label (Jan 2026). Your prescription and pharmacist come first.
What the official label says. If a doctor prescribed it, follow the prescription. Your pack's leaflet comes first if it is different.
Temporarily relieves these symptoms due to the common cold, hay fever, or other upper respiratory allergies: runny nose sneezing itching of the nose or throat itchy, watery eyes
drowsiness may occur avoid alcoholic beverages alcohol, sedatives and tranquilizers may increase the drowsiness effect use caution when driving a motor vehicle or operating machinery excitability may occur, especially in children
trouble urinating due to enlarged prostate gland glaucoma a breathing problem such as emphysema or chronic bronchitis
Do not use with any other products containing diphenhydramine, even one used on skin
If pregnant or breast-feeding , ask a health professional before use.
Keep out of reach of children.
Take it when you remember, unless it is nearly time for the next dose. Then skip the missed one. Never take two doses at once to make up for it. Check your leaflet, as some medicines are different.
Prices in other countries are not what you will pay where you live; they show how prices compare.
Price of Diphenhydramine in: United Kingdom
Products with Diphenhydramine as the active ingredient. Names differ between countries.
Other countries: check your pack's registration number and we point you to your regulator.
A recall usually affects certain batches only. Compare the lot number on your pack.
Type the registration number on the pack, or scan it with your camera.
Temporarily relieves these symptoms due to the common cold, hay fever, or other upper respiratory allergies: runny nose sneezing itching of the nose or throat itchy, watery eyes (From the official U.S. FDA label.)
Follow your prescription or the leaflet in your pack. The official label says: Do not take more than directed Adults and children 12 years of age and over: Take 1 caplet every 4 to 6 hours while symptoms persist do not take more than 6 caplets in 24 hours unless directed by a doctor Children under 12 years of age: ask a doctor…
Do not use with any other products containing diphenhydramine, even one used on skin drowsiness may occur avoid alcoholic beverages alcohol, sedatives and tranquilizers may increase the drowsiness effect use caution when driving a motor vehicle or operating ma…
In many countries Diphenhydramine is sold without a prescription in some strengths. Rules differ by country, so ask a pharmacist.
Diphenhydramine is sold under names such as Percogesic Reformulated Jan 2011, Wal-dryl, Compoz, Wal-dryl Childrens, Wal-dryl-d, Wal-dryl Allergy, Wal-som Maximum Strength, Nytol. Brand names differ between countries.
The label gives a separate dose by age: children 12 years. Check the pack or ask a pharmacist.
If pregnant or breast-feeding , ask a health professional before use. Ask your doctor or midwife first.
Scan the registration number on your pack with PillVera (NAFDAC number in Nigeria, NDC in the United States, DIN in Canada), check the expiry date and buy only from licensed pharmacies.
This page shows what official sources say, in plain words. It is not medical advice: your prescription and your doctor or pharmacist come first. Brand names, strengths and rules differ between countries.