My Calf Muscles Cramp And Ache. I've Tried Muscle Creams

My calf muscles cramp and ache. I've tried muscle creams and potassium supplements, drinking plenty of fresh orange juice and eating bananas. But the problem still persists. I take Losartan 100 mg w/ 12.5 HCTZ and I think this may be the culprit. But it also controls my BP very well. I also suffer from Pancreatitis for which I only take Pantoprazole once daily and Ondansetron if needed.