Based on a review of this drug by the National Academy of Sciences-National Research Council and/or other information. FDA has classified the indications as follows: “Lacking substantial evidence of effectiveness as a fixed combination”:…

Promethazine Hydrochloride, is useful orally for. Perennial and seasonal allergic rhinitis. Vasomotor rhinitis. Allergic conjunctivitis due to inhalant allergens and foods. Mild, uncomplicated allergic skin manifestations of urticaria and angioedema…