B- B2 B3 B5 BA BC BE BI BL BO BR BT BU BY List of drugs starting with "BT" Btvpur Btvpur Alsap 1 Btvpur Alsap 1 Suspension For Injection For Sheep And Cattle Btvpur Alsap 2-4 Btvpur Alsap 2-4 Suspension For Injection For Sheep Btvpur Alsap 8 Btvpur Alsap 8, Suspension For Injection Btvpur Suspension For Injection For Sheep And Cattle