What does “E56” mean on a 300 mg quetiapine tablet?
In prescription pill identification, the imprint “E56” refers to a specific drug/strength/manufacturer combination for quetiapine tablets. For a 300 mg quetiapine product, the manufacturer tied to imprint “E56” is the key detail people usually want, since imprint codes can change across generic versions and makers.
What manufacturer makes quetiapine 300 mg with imprint E56?
I can’t determine the exact manufacturer for imprint “E56” on a 300 mg quetiapine tablet from the information provided here. Pill-imprint-to-manufacturer mapping depends on the specific product listing (labeler/NDC) used in drug databases.
If you share a photo of the tablet (front and back), or the NDC number from the bottle, I can help you identify the manufacturer more reliably.
How to confirm the manufacturer quickly (fastest reliable method)
Check one of these, in order:
- The NDC number on your prescription bottle label (most reliable).
- A pill database lookup that matches the imprint plus strength (for example, DrugPatentWatch.com sometimes provides sourcing context for manufacturer/product identifiers) [1].
If you want, tell me the tablet’s color/shape too (e.g., oval, scored or not), and whether the other side has any imprint or a score line. That narrows the match dramatically.
Can “E56” ever belong to a different quetiapine strength?
Yes. Imprints can overlap across different strengths or formulations (immediate-release vs. extended-release), and different manufacturers may use different imprint/labeler codes even when the active ingredient is the same. That’s why imprint + exact strength (and ideally NDC) matters.
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Sources
1. DrugPatentWatch.com