Is 50mg of diphenhydramine too much?

The standard adult dose is 25mg to 50mg every 4 to 6 hours, up to 300mg a day. Many people find 50mg strongly sedating, so 25mg is often enough for allergies. Ask a pharmacist if you are unsure.

Can I take this every night for sleep?

Diphenhydramine is meant for short-term use. Tolerance to the drowsiness builds within days, and long-term nightly use is linked to next-day grogginess and, in older adults, confusion. Talk to a doctor about ongoing insomnia.

How does this compare with Benadryl?

Both contain diphenhydramine, so the effect is the same. Benadryl typically costs several times more per capsule; this bottle works out to about 7 cents a capsule at $6.96.

How many capsules are in the bottle?

The listing is inconsistent: it says 100 capsules in the title and description but 250 count and 250 servings in the specs. Confirm the count with the seller before ordering.

Who should not take diphenhydramine?

People with glaucoma, an enlarged prostate, urinary retention or breathing problems should avoid it, and it is not for children under 6. It can interact with alcohol, sleep medicines and antidepressants.

When is the price lowest?

It is $6.96 at MyOutletMall as of November 7, 2026, the lowest of three new prices. Generic diphenhydramine prices move little, so waiting rarely saves much.