It can also interact with other heart medications, such as calcium channel blockers. (health.com)
We treat these cats with calcium channel blockers such as diltiziam, diuretics such as furosemide and low doses of aspirin. (2ndchance.info)
When its systolic blood pressure is above 159, (ref), most veterinarians begin treating the problem in dogs with drugs called ACE inhibitors such as enalapril or benazepril; and in cats with Calcium channel blockers (amlodipine) and sometimes diuretics as well. (2ndchance.info)