small white round pill with M on one side and 4 on the other side, Thanks for helping.
Imprint Code: M4
Drug/Strength/Manufacturer: Perphenazine 4mg - Apo Perphenazine - Apotex
Description: Tablet - White - Round
Chronic Pain sufferer from severe spinal scoliosis with herniated discs and pinched nerves.
Sounds like Hydromorphone 4 mg by Mallinckrodt
Generic for: DilaudidÃ‚Â®
Description: White/Round Tab
Identification Code: Debossed with M one side; 4 on the reverse side
You will find an image at http://pharmaceuticals.mallinckrodt....ProductID=5462
so you can see if it matches up.
Info at http://hydromorphone.drugs.com