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Joined: Aug 3 2005
Posts: 6
User offline. Last seen 32 weeks 6 days ago.

Hello, hope you can help.


Small, white, round pill
One side = Blank
Other-side = A (or R?) scored 158

Thanks all.

Joined: Dec 26 2004
Posts: 3785
User offline. Last seen 1 day 7 hours ago.
Generic Demerol - A158

Yes, A 158 is 50 mg meperidine, generic Demerol.  It's an analgesic to control moderate to severe pain.

The Amide "A" is often mistaken for an "R" by many posters since the top of the "A" is rounded and not pointed.  Here is an image of a different Amide tablet submitted by CrackHead:

Amide Oxycodone 15 mg 

This is not your pill.  I just want you to see the Amide "A".

I can't find an image of A 158, but the ID is confirmed by three databases plus Amide Pharmaceutical's website.

More information re meperdine is available at  Eckerd's Prescription Advisor.


I'm not a pharmacist or a medical doctor. This message is not medical advice nor is it an offer to provide medical advice. All drug identifications should be validated by a licensed MD or pharmacist.
Joined: Aug 3 2005
Posts: 6
User offline. Last seen 32 weeks 6 days ago.
Thanks a lot. Yea, that A on

Thanks a lot. Yea, that A on the pic looks like an R as well. At least Im not the only one to mistake it like that.