Pill Identifier » 851

851 Pill – Orange Oval Guanfacine GUANFACINE HYDROCHLORIDE 2 mg

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Quick Identification

The pill with imprint 851 is a orange oval tablet/capsule identified as guanfacine GUANFACINE HYDROCHLORIDE 2 mg.

Imprint851
ShapeOVAL
ColourORANGE
Size12
StrengthGUANFACINE HYDROCHLORIDE 2 mg
Dosage formTablet, Extended Release
This tool is for general reference only and is not a substitute for professional medical advice. Always confirm any medication with a licensed pharmacist or your doctor before taking it. The underlying data is a static, publicly archived snapshot and may not include newer medications.

What Does This Imprint Mean?

The characters "851" 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: Guanfacine

Generic name: Guanfacine. This pill contains GUANFACINE HYDROCHLORIDE 2 mg.

Manufacturer & NDC

ManufacturerAvKARE, Inc.
NDC42291-325

How to Identify This Pill

  1. Read the imprint code exactly as it appears (letters, numbers, and any dividing line) — it is the single most reliable identifier.
  2. Note the shape (round, oval, capsule, etc.) and colour, and compare both against the details above.
  3. Check the size if you have a ruler or pill gauge — imprint plus size narrows down look-alikes.
  4. Compare the pill photo above side-by-side with the physical pill in good lighting.
  5. 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 851 look like?

It is described as a orange oval pill measuring about 12, imprinted with "851".

What is guanfacine used for?

See the guanfacine drug page for full usage information.

What strength is this guanfacine pill?

This pill is GUANFACINE HYDROCHLORIDE 2 mg of guanfacine.

Who makes this pill?

It is manufactured by AvKARE, 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.

Official References