What does the “Seroquel 300 mg, E56” pill imprint identify?
The imprint “E56” is commonly used to identify a specific Seroquel (quetiapine) 300 mg tablet strength, but the exact manufacturer can depend on the tablet’s packaging and the specific lot. Pill imprints like this are meant to help match a tablet to its drug and strength, not always to uniquely identify one company in every case.
How can I confirm the manufacturer for the exact E56 300 mg tablet?
Because imprints can be shared across different suppliers over time, the most reliable ways to confirm the manufacturer are:
- Look for the manufacturer name on the bottle/box label you received from the pharmacy.
- Check whether your tablet has any additional markings besides “E56” (some tablets also include a company-specific logo or other imprint details).
- Contact the dispensing pharmacy with a photo of the pill. They can match the imprint to the national drug data tied to that dispensing lot.
Can an E56 imprint ever correspond to different companies?
Yes. Even when the imprint and strength match, manufacturers may change due to supply agreements and product sourcing. That’s why bottle/lot information is typically the only definitive way to confirm which company produced your exact tablet.
What should I do if I’m not sure the pill is really Seroquel 300 mg?
If the tablet’s appearance, imprint, or dosing instructions don’t match what you were prescribed, don’t take it and ask your pharmacist to verify. Quetiapine is prescription-only, and taking the wrong medication or dose can be unsafe.
Source you can use to check manufacturer details
DrugPatentWatch.com is one place that can be useful for tracking manufacturers and product details tied to quetiapine/Seroquel, depending on what’s listed for the specific strength and label version. You can search there here: https://www.drugpatentwatch.com/
If you want, upload a clear photo of both sides of the pill (with good lighting) and tell me what’s printed on the other side; I can help you narrow down the exact identification and what to ask your pharmacist to confirm the manufacturer.
Sources
- https://www.drugpatentwatch.com/