The pill imprinted “691”
The imprint 691 appears on 3 different products in the FDA data: Aspirin 325 mg, Aspirin 325 325 mg, oxcarbazepine 150 mg. Match the colour and shape below to your pill.
The pictures are diagrams drawn from the shape, colour and imprint on the FDA label — not photographs of the actual tablet. Identify by the imprint, and confirm with a pharmacist.
What else is in this pill
The inactive ingredients — fillers, binders, coatings and colours — exactly as this label declares them.
This label declares colour additives
D&C yellow #10, FD&C yellow #6
FD&C and D&C dyes, declared individually on the label.
Full inactive-ingredient list (17)
Cellulose, Colloidal anhydrous silica, Corn starch, D&C yellow #10, FD&C yellow #6, Hypromellose, Methacrylic acid, Polydextrose, Polyethylene glycol, Shellac wax, Simethicone, Sodium bicarbonate, Sodium lauryl sulfate, Talc, Titanium dioxide, Triacetin, Triethyl citrate
This is what the label lists, and nothing more. An ingredient not appearing here does not mean the product is free of it — formulations differ between manufacturers and between generic versions of the same pill, and “gluten-free” or “dye-free” is a claim only the manufacturer can make. If you have coeliac disease or a diagnosed allergy, confirm with the pharmacist against the pack in front of you.
Before you rely on this
A pill’s appearance varies between manufacturers and generic versions, imprints wear off, and two different drugs can share an imprint. Everything here is transcribed straight from the FDA’s DailyMed labels — we do not alter or infer it — but treat any identification as a starting point and confirm with a licensed pharmacist before taking or discarding a medication.
Wrong pill? Search by imprint, colour and shape in the full pill identifier.
Source: the U.S. National Library of Medicine’s DailyMed Structured Product Labeling — the FDA-required drug labels. Imprint, colour, shape, size and score are transcribed, not inferred. This is reference information, not medical advice.