High blood pressure should be avoided with medications such as Viagra also known as sildenafil citrate. Sildenafil citrate is primarily a medication for erectile dysfunction. Patients with high blood pressure need to use antihypertensive drugs such as diuretics, furosemide, guanylate cyclase stimulant viliciclovir and other antihypertensive drugs on a daily basis. Some antihypertensive drugs such as nitrates such as triglyceride tablets, amiloride hydrochloride and other drugs and guanylate cyclase stimulant will react with Viagra and other drugs to enhance the ability to lower blood pressure leading to excessive drop in blood pressure, hypotension, so people with high blood pressure should avoid using Viagra. And Viagra and other drugs and other drugs such as high blood pressure of the people who take the drugs may appear flushing, abdominal pain, diarrhea, dizziness, and even loss of hearing and insomnia in severe cases. So you need to avoid taking these drugs on a daily basis and if you wish to use them very much, then you need to visit a hospital and consult a doctor for their use. Sildenafil is strictly prohibited for people who are using or have recently used nitrates, guanylate cyclase stimulators and those who are allergic to sildenafil. It is recommended to use it under the supervision of a physician.