Ph. E., Pharmacopœia Edinensis.
Ph. L., Pharmacopœia Londinensis.
Ph. U. S., Pharmacopœia of the United States.
Part. vic., partitis vicibus, in divided doses.
Per. op. emet., peractâ operatione emetici, the operation of the emetic being over.
Pocul., poculum, a cup.
Pocill., pocillum, a small cup.
Post sing. sed. liq., post singulas sedes liquidas, after every loose stool.
Ppt., præparata, prepared.
P. r. n., pro re nata, occasionally.