I am taking 3 drugs for high blood pressure: Diltiazem 360mg, Valsartan 320mg and Hydroclorothiazide 25mg. Recently , my provider gave me for free, Bystolic (nebivolol) 10mg/tablet (Professional sample. Not to be sell). Now, when I surfed on the internet, the says , some where In drugs Interactions : Bystolic can exacerbate the effects of myocardial depressant or inhibitors of AV conduction, such as certain calcium antagonists ( particularly of the phenylalkylamine [verapamil] and benzothiazepine [diltiazem] classes), or antiarrhythmic agents , such as disopyramide. My question is : Can I tak Bystolic (nebivolol) 10 mg tablet when I am tanking, for many years, Diltiazem? Thanks for your help.