Are there any side effects to taking Viagra? Of course there are! It is a drug that has three toxins, long-term dependence on Viagra can make you “hard”, but also make you “waste”. The increasing pressure of today’s society has led to a disruption in people’s daily lives, resulting in physical abnormalities. A lot of guys in their 20s are showing symptoms of impotence and premature ejaculation at a young age. And at the same time, they hope they can have a “tough guy like” sexual ability, so they secretly use a small blue pill – “Viagra”. I have to admit, the effect of Viagra is really obvious, and it is this powerful effect, so it has received numerous users praise. But there are also many people who are “addicted” to it. The people who have used Viagra, although at the time seemed very “strong”, but after a long period of dependence, the body will appear very serious abnormalities. 1, permanent impotence Because Viagra is an exogenous substance, long-term use can produce drug dependence, and even permanent impotence. 2, glaucoma Ophthalmologists warn that taking Viagra can lead to a drop in blood pressure, but glaucoma patients with high intraocular pressure, so that 3% to 5% of people may develop acute glaucoma, and acute glaucoma can make people blind overnight, even if cured can not restore the original vision. 3, headache Clinical trials have found that about 13% of people have headaches after taking the drug, and individuals suffer from severe headaches, and the higher the dose, the more severe the headache. 4, leading to infertility A medical research group of experts in the United States believes that young people with “Viagra” drugs, will eventually only affect their own fertility. It is recommended that young people who do not have erection difficulties should not take Viagra if they want to have children. 5, fainting The drug may have the effect of causing a sudden drop in blood pressure, if you take nitroglycerin and other drugs at the same time, often immediately produce dizziness and even fainting symptoms. 6, blurred vision About 3% of those who take the drug can occur a short period of blurred vision, some will also have hallucinations of seeing blue light. The U.S. Air Traffic Control Board prohibits aircraft pilots from flying within six hours after taking Viagra, in order to prevent flight accidents. 7, abnormal erection Men with urethritis and leukemia can get a long erection without collapse after taking it, and as a result will injure the penis and urethral spongiosum, and even aggravate impotence. If the erection exceeds 4-6 hours, it is necessary to seek medical attention immediately. 8, cardiovascular disease Impotence may be a precursor to heart disease, diabetes or cancer, and taking the drug may mask the real condition. It must therefore be used with caution by men with cardiovascular disease to avoid inducing heart disease or causing a stroke. Reference: Ming Chao. Is masturbation the source of all “evils”[J]. China Reproductive Health,2019(8):24-25.