Antihistamine Formulation Calculator Antihistamine Formulation Calculator Select Dosage Form: Tablet Syrup Injection Select Strength (mg): Select Pharmacopoeia: BP USP Select Active Salt: Brompheniramine Carbinoxamine Maleate Chlorpheniramine Clemastine Diphenhydramine Hydroxyzine Triprolidine Azelastine Cetirizine Desloratadine Fexofenadine Levocetirizine Loratadine Olopatadine Cimetidine Famotidine Nizatidine Ranitidine Batch Size (in units): Calculate Formulation Results: Component Quantity (kg) Method of Production: