PDR does not appear as an imprint on any pills as of 2015, according to Healthline. Ten pills have imprints beginning with PD, including P-D 007, generic phenytoin, a yellow pill marketed as Dilantin 50 milligrams. PD 222 and PD 223 are hydrochlorothiazide-quinapril, pink pills marketed as Accuretic.
Other pills imprinted with PD include P-D 237, or generic ethosuximide, an orange pill marketed as Zarontin 250 milligrams; PD 270, or phenelzine, an orange pill marketed as Nardil 15 milligrams; and PD 622, or ethinyl-estradiol-ferrous-fumarate-norethindrone-acetate, a brown pill marketed as Estrostep Fe. Quinapril, marketed as Accupril 5 milligrams, has the imprint 5 | PD 527, notes Healthline.