My blood pressure was 160/100 my doctor added 5 mg bystolic (nebivolol) pressure went to145/90 pulse. 68 he then added 10 mg benzapri now cramping and diarrhea?

Side effect?: This might be a side effect of the benazepril, but it would be unusual. I would not take it and monitor your bp. Your doctor might want to further increase your bystolic (nebivolol) instead. If the diarrhea does not improve after a few days, let your md know.

Possible side effect: These are both good medications and often work quite well without significant side effects for most folks, but bystolic (nebivolol) can cause cramping/diarrhea in about 2-3% of folks taking it. Benazepril can rarely cause constipation--but in combination with other med is often more difficult to predict. Since you are having significant side effect, consulting your prescribing physician is advised. Good luck.