السلام عليكم
Fexofenadine
non-sedating antihistamine, TGA (third generation antihistamine), doesn't have a cardiotoxic effect like its parent drug, terfenadine.
very effective and hasn't shown any sedating effects or tolerence even in high doses or long-term use, respectively.
Its indications are in allergic rhinitis both seasonal and perrenial types (conventional and fixed with pseudoephedrine), and in chronic idiopathic urticaria.
Its OTCs dosages are 60 mg, D12 bid
Rx: 120, 180 mg (adults) od
30 mg (ped.) bid
D24 (PE 240 mg + Fexofenadine 180 mg) od