Prochlorperazine Home>Pharmacy>Drugs_and_Medications>P>Prochlorperazine     Web Pages Prochlorperazine Information from the RxList. Compazine Prescribing information for US residents in PDF format. [Acrobat Reader required] Prochlorperazine Information from DrugDigest on dosage, usage, side effects, interactions, and storage of this antinausea medication.