WPI Pill – White Round Fentanyl Buccal FENTANYL CITRATE 400 ug
Quick Identification
The pill with imprint WPI is a white round tablet/capsule identified as Fentanyl Buccal FENTANYL CITRATE 400 ug.
| Imprint | WPI / 3573 |
|---|---|
| Shape | ROUND |
| Colour | WHITE |
| Size | 8 |
| Strength | FENTANYL CITRATE 400 ug |
| Dosage form | Tablet |
| Controlled substance schedule | CII |
What Does This Imprint Mean?
The characters "WPI" 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: Fentanyl Buccal
Generic name: Fentanyl Buccal. This pill contains FENTANYL CITRATE 400 ug.
Manufacturer & NDC
| Manufacturer | Actavis Pharma, Inc. |
|---|---|
| NDC | 0591-3573 |
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.
Frequently Asked Questions
What does the pill imprinted WPI look like?
It is described as a white round pill measuring about 8, imprinted with "WPI".
What is Fentanyl Buccal used for?
See the Fentanyl Buccal drug page for full usage information.
What strength is this Fentanyl Buccal pill?
This pill is FENTANYL CITRATE 400 ug of Fentanyl Buccal.
Who makes this pill?
It is manufactured by Actavis Pharma, 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.
