Never stop taking medication without first talking to your doctor. In some cases, this can be very dangerous, causing a big spike in blood pressure.
If you are pregnant or planning to get pregnant, talk to your doctor about the safest medication to use. ACE inhibitors or angiotensin II receptor blockers (ARBs) can cause harmful side effects for pregnant women and their developing babies.
If you take insulin for diabetes, talk to your doctor. Changes in blood sugar can occur in people with diabetes taking diuretics or beta-blockers for high blood pressure
If you have problems with erections during sex, talk with your doctor. Some high blood pressure medications can cause this problem. Reducing the dose or changing to another type of medication may help. But high blood pressure itself can also cause erectile dysfunction.