Viagra generally refers to sildenafil, a drug used to treat erectile dysfunction. The main side effects include cardiovascular system, nervous system, urinary system and so on. Due to the different individual conditions of each person, the possible adverse reactions are also different, and it is recommended to take the drug under the guidance of a doctor.
1. Cardiovascular system: some people may experience adverse reactions such as tachycardia and cardiac arrest after taking the drug.
2. Nervous system: some people may experience dizziness and headache after taking the drug, and in severe cases, adverse reactions such as cerebral hemorrhage may occur.
3. Urinary system: some people may experience adverse reactions such as abnormal penile erection for more than 4 hours and abnormal ejaculation after taking the drug.
People are advised to take Sildenafil under the guidance of a doctor. People who are allergic to the ingredients contained in Sildenafil and those who suffer from cardiovascular and cerebrovascular diseases should not use this drug.