What does “E56” mean on a 300 mg quetiapine tablet?
An “E56” imprint on a tablet is a manufacturer-specific marking used to identify a particular quetiapine product strength and source. The exact manufacturer tied to “E56” at 300 mg depends on the drug’s specific listing in imprint databases (and the tablet’s shape/color). With just “E56” and “300 mg,” the manufacturer name can’t be reliably confirmed from the information provided.
Which manufacturer makes 300 mg quetiapine with imprint E56?
To pinpoint the manufacturer, you typically need at least one more detail besides “E56” and “300 mg,” such as:
- tablet color
- tablet shape (oval, round, oblong)
- any other imprints on the tablet (letters/numbers on the opposite side, or a score mark)
If you share those details (or a photo), the manufacturer for that exact imprint/strength can usually be identified using imprint-and-drug-lookup references.
How to check the manufacturer directly from your bottle
Your bottle or box label can confirm the manufacturer and NDC (National Drug Code) for your specific tablet. If you can provide the NDC from the label (or a photo of the label with personal info covered), it will match to the correct product line and manufacturer much more accurately than imprint alone.
Why the manufacturer matters for imprints
Imprints like “E56” are not a universal code for “quetiapine from the same company.” Different companies can produce quetiapine tablets, and their tablets may use different imprint codes even at the same strength (300 mg). That’s why imprint lookups often require the full set of identifiers (imprint + color/shape + any other marking).
Quick next step
Reply with:
1) tablet color
2) shape
3) any other imprint text/numbers (front and back)
4) whether there’s an NDC on the bottle
…and I’ll help narrow down the manufacturer for the 300 mg quetiapine imprint “E56.”
Sources: None (no provided drug-imprint reference data in the prompt to cite).