Pill Identifier » S51

S51 Pill – Orange Oval Entacapone ENTACAPONE 200 mg

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Quick Identification

The pill with imprint S51 is a orange oval tablet/capsule identified as Entacapone ENTACAPONE 200 mg.

ImprintS51
ShapeOVAL
ColourORANGE
Size16
StrengthENTACAPONE 200 mg
Dosage formTablet, Film Coated
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 "S51" 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: Entacapone

Generic name: Entacapone. This pill contains ENTACAPONE 200 mg.

Manufacturer & NDC

ManufacturerLannett Company, Inc.
NDC0527-1830

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 S51 look like?

It is described as a orange oval pill measuring about 16, imprinted with "S51".

What is Entacapone used for?

See the Entacapone drug page for full usage information.

What strength is this Entacapone pill?

This pill is ENTACAPONE 200 mg of Entacapone.

Who makes this pill?

It is manufactured by Lannett Company, 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