• Jun 24, 2026 essentials of veterinary pharmacology sandhu and NSAIDs (phenylbutazone, flunixin meglumine). Drugs Acting on the Cardiovascular System Vasodilators: Hydralazine, nitrates for managing hypertension. Diuretics: Furosemide for edema and heart failure. Inotropes: Digoxin for certain cardiac arrhythmias. Drugs Acting on the Re BY Ada Reynolds