Round Yellow Pill Kb

7mm Round Yellow Pill inverted triangle (rounded corners) with letters K.B. in triangle

Found these 7mm Round Yellow Pill inverted triangle (rounded corners) with letters K.B. in middle of triangle . Would like to know what they are. Prescription or narcotic? ## I'm sorry, but I haven't been able to find any listing for anything that has this marking and matches your description. That leads me to suspect that it's most likely something that's available over the counter, since those imprints aren't required to be logged with the FDA. I'll keep searching and post back when I find it. Does anyone else know what this tablet contains? ## Round Yellow Pill With K B Inside An Inverted triangle ## Chlorpheniramine - from what I have read they are antihistamines that are sometimes used as sleep aids.

3 REPLIES Filed under Chlorpheniramine