1. ???? Basic Product Identification Generic Name: Ambrisentan Drug Class: Endothelin receptor antagonist (ERA) Therapeutic Category: Pulmonary arterial hypertension (PAH) therapy Route: Oral tablets Strengths: 5 mg, 10 mg (typical) Prescription type: Specialist (cardiology/pulmonology) drug Key feature: Selective ETA receptor blocker 2. ???? Thera