A41 Pill – Purple Capsule Diphenhydramine DIPHENHYDRAMINE HYDROCHLORIDE 25 mg
Quick Identification
The pill with imprint A41 is a purple capsule tablet/capsule identified as Diphenhydramine DIPHENHYDRAMINE HYDROCHLORIDE 25 mg.
| Imprint | A41 |
|---|---|
| Shape | CAPSULE |
| Colour | PURPLE |
| Size | 15 |
| Strength | DIPHENHYDRAMINE HYDROCHLORIDE 25 mg |
| Dosage form | Capsule, Liquid Filled |
What Does This Imprint Mean?
The characters "A41" stamped, printed, or debossed onto this pill are its imprint code. Manufacturers are required by the FDA to give every tablet and capsule a unique imprint so it can be identified after it leaves its original packaging. Combined with the pill's shape and colour, the imprint is the fastest way to confirm exactly what a loose pill is.
Active Ingredient: Diphenhydramine
Brand name: Nighttime Sleep Aid. Generic name: Diphenhydramine. This pill contains DIPHENHYDRAMINE HYDROCHLORIDE 25 mg.
Read the full drug profile for Diphenhydramine, including what it's used for, dosage information, side effects, and warnings.
Manufacturer & NDC
| Manufacturer | Safeway, Inc. |
|---|---|
| NDC | 21130-225 |
What Is Diphenhydramine Used For?
25 mg formulation: Temporarily relieves allergy and cold symptoms including "runny nose," "sneezing," and "itchy, watery eyes." 50 mg formulation: Temporarily relieves allergy and cold symptoms including "sneezing," "runny nose," and "itchy, watery eyes."
Side Effects & Warnings
Most common: "marked drowsiness," excitability (especially in children)
Full list of Diphenhydramine side effects | Diphenhydramine warnings & precautions
How to Identify This Pill
- Read the imprint code exactly as it appears (letters, numbers, and any dividing line) — it is the single most reliable identifier.
- Note the shape (round, oval, capsule, etc.) and colour, and compare both against the details above.
- Check the size if you have a ruler or pill gauge — imprint plus size narrows down look-alikes.
- Compare the pill photo above side-by-side with the physical pill in good lighting.
- If anything does not match exactly, do not assume — confirm with a pharmacist before taking it.
Similar-Looking Pills
These pills share the same shape and colour, but are different medications — always confirm by imprint, not appearance alone.
Other Pill Identifiers for Diphenhydramine
Frequently Asked Questions
What does the pill imprinted A41 look like?
It is described as a purple capsule pill measuring about 15, imprinted with "A41".
What is Diphenhydramine used for?
25 mg formulation: Temporarily relieves allergy and cold symptoms including "runny nose," "sneezing," and "itchy, watery eyes." 50 mg formulation: Temporarily relieves allergy and cold symptoms including "sneezing," "runny nose," and "itchy, watery eyes."
What strength is this Diphenhydramine pill?
This pill is DIPHENHYDRAMINE HYDROCHLORIDE 25 mg of Diphenhydramine.
Who makes this pill?
It is manufactured by Safeway, Inc..
Is it safe to take a pill if I cannot identify it?
No. Never take a pill you cannot positively identify. If you are unsure about a pill, do not take it — consult a pharmacist or physician, or contact Poison Control.
