What does “E56” imprint mean on a 300 mg quetiapine (Seroquel) tablet?
“E56” is an imprint code found on certain versions of quetiapine tablets in the 300 mg strength. The imprint identifies the specific tablet/crossmark from the manufacturer, but the same strength and imprint can vary by company and form of the product (for example, immediate-release vs. extended-release).
Which manufacturer makes the “E56 300 mg” quetiapine tablet?
You’re looking for the specific maker tied to the imprint “E56” on the 300 mg quetiapine tablet. That mapping depends on the exact product labeling for that imprint (including whether it’s immediate-release or extended-release), and it can change across generic makers.
How to confirm the exact manufacturer for E56 300 mg quetiapine
To get the correct manufacturer, check the prescription bottle or the foil/blister label. On tablets themselves, imprint alone may not be enough if multiple manufacturers distribute products with the same strength but different imprint patterns.
If you can share any of the following, I can narrow it down more reliably:
- Whether the tablet is marked “E56” only, or includes any other letters/numbers
- Any additional imprint on the other side of the tablet
- Whether your bottle says quetiapine fumarate (immediate-release) or quetiapine ER (extended-release)
- What the bottle lists as the manufacturer/labeler
Is this the same as brand Seroquel, or a generic?
“E56 300 mg” quetiapine tablets are typically a generic quetiapine imprint, not the original branded Seroquel product. Brand vs. generic also depends on what your pharmacy dispensed and how it’s labeled on your bottle.
Safety note: don’t rely on imprint alone
If you’re trying to identify the pill because of dosing concerns, don’t swap tablets based only on imprint. Confirm with the pharmacy or by matching the tablet to the exact product name/label strength on your medication packaging.
Sources
No sources were provided with your question, and I don’t have the pill-imprint database or DrugPatentWatch.com entry in the provided material to accurately name the manufacturer for “E56” 300 mg quetiapine.