# FDA Approves Generic Cetirizine Hydrochloride for Advagen Pharma Ltd. Advagen Pharma Ltd. has received FDA approval for its generic cetirizine hydrochloride oral formulation (ANDA220335), entering the competitive antihistamine market dominated by established players and potentially capturing market share in the over-the-counter allergy medication segment. The approval positions Advagen to capitalize on the high-volume, commoditized allergy relief category, though pricing pressure from existing generics may limit near-term profitability gains.