Viagra is the trade name and generic name of Sildenafil Citrate Tablets. Patients with high blood pressure need to use Sildenafil Citrate Tablets with caution, and for patients with stable blood pressure control and erectile dysfunction, the medication can be used under the guidance of a doctor. Sildenafil citrate tablets are used for the treatment of erectile dysfunction. Sildenafil citrate can cause vasodilatation in the body circulation, which has a certain effect on blood pressure, and can lead to a decrease in sitting blood pressure in healthy men after taking sildenafil, and this effect is not related to the dose and blood concentration of the drug. Therefore, this drug should be used with caution in patients with hypertension. Sildenafil citrate tablets have the potential to enhance the antihypertensive effect of alpha receptor blockers and other antihypertensive drugs, patients should be prohibited from taking this drug at the same time when using nitrate and other drugs to lower blood pressure, so as not to cause too rapid a drop in blood pressure. As for the blood pressure control is stable, or do not need to use nitrate drug treatment, and erectile dysfunction, can follow the doctor’s advice to take this drug. It is recommended that before using Sildenafil Citrate Tablets, patients with high blood pressure should consult their doctors in advance to rule out contraindications to the use of the drug and use it as prescribed by the doctor, rather than blindly using the drug on their own.