It is not
codeine, courtesy of robo from an old post, it is:
The pill you have is
PROMETHAZINE 25 MG
Generic for
Phenergan, an antihistamine.
Imprint Code A 406
Description white, round, double-scored tablet
Info at
http://promethazine.drugs.com verwon@gmail.com
My information is not guaranteed correct. I do not get them right all the time, but I do enjoy the hunt~