Promethazine

Synonyms / Brand Names: Lilly 1516, Isopromethazine, Proazaimine, Proazamine, Promazinamide, Promethazin, Promethazine Hcl, Promethiazine, Promezathine, Prothazin, Prothazine, Allergan, Aprobit Avomine, Dimapp, Diphergan, Diprazine, Diprozin, Dorme, Duplamin, Fargan, Fellozine, Fenazil, Fenergan, Fenetazina, Genphen, Hiberna, Histargan, Iergigan, Isophenergan, Lercigan, Lergigan, Mymethazine Fortis, Phargan, Phenargan, Phencen, Phenergan, Phenergan Fortis, Phensedyl, Pilpophen, Pipolphen, Procit, Prometasin, Prometazin, Prometh Fortis, Prometh Plain, Promethacon, Promethaine, Promethegan, Prorex, Protazine, Provigan, Pyrethia, Pyrethiazine, Remsed, Romergan, Synalgos, Tanidil, Thiergan, Valergine, Vallergine, Zipan-25

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Dosing and Administration

For allergies the average oral dose is 25 mg taken before retiring; however, 12.5 mg may be taken before meals and on retiring, if necessary. Single 25 mg doses at bedtime or 6.25 to 12.5 mg taken three times daily will usually suffice. After initiation of treatment in children or adults, dosage should be adjusted to the smallest amount adequate to relieve symptoms. The administration of Promethazine HCl in 25 mg doses will control minor transfusion reactions of an allergic nature.
For dosage and administration instructions for motion sickness, nausea and vomiting, sedation, and pre- and post-operative use see Instructions for Administration.

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