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Health effects of using Viagra
02nd July, 2026 11:13 AM
Viagra and contraceptives are among the most commonly discussed medicines in sexual and reproductive health, but they are often misunderstood.
According to Kenya Ministry of Health, while one is mainly used to treat erectile dysfunction and the other helps prevent pregnancy, both can affect the body in different ways and should be used with the right information.
What is Viagra used for
Viagra is the brand name commonly linked to sildenafil, a medicine used to help men with erectile dysfunction, a condition where a person finds it difficult to get or maintain an erection firm enough for sexual intercourse. It works by increasing blood flow to the penis during sexual arousal.
Viagra should only be taken in the prescribed amount. Taking more than recommended does not make it work better and may increase the risk of serious side effects.
Common side effects of Viagra
Some users may experience headaches, facial flushing, indigestion, blocked nose, dizziness, nausea or mild changes in vision. These effects are usually temporary, but they can be uncomfortable.
When Viagra can be dangerous
Viagra can be risky for people taking nitrate medicines for chest pain. Combining the two can cause a dangerous drop in blood pressure, leading to fainting, heart complications, or other serious problems.
According to National Health Service, people with serious heart disease, low blood pressure, a recent stroke or heart attack, liver problems or certain eye conditions should speak to a health professional before using Viagra. A painful erection lasting more than two hours, chest pain, sudden vision changes or fainting should be treated as a medical emergency.
What contraceptives are
Contraceptives are methods used to prevent pregnancy. They allow individuals and couples to decide if and when they want to have children. Different methods suit different people depending on their health, lifestyle, age, and future family plans.
Some methods are used before physical intimacy, while others work for months or years after being given by a trained health worker.
Hormonal contraceptive methods
Hormonal contraceptives include daily pills, injections, implants, skin patches, vaginal rings and hormonal intrauterine devices, also known as IUDs.
The injection is usually given after every few months. Implants are placed under the skin of the upper arm and can prevent pregnancy for several years. Hormonal IUDs are placed in the uterus by a trained health worker and can provide protection for several years.
How contraceptives prevent pregnancy
According to Mayo Clinic, hormonal methods can prevent pregnancy by stopping ovulation, thickening cervical mucus to make it difficult for sperm to reach an egg, or changing the lining of the uterus.
Common side effects of contraceptives
Most contraceptives are safe for many people, but some users may experience changes in their menstrual cycle, spotting, nausea, headaches, breast tenderness, mood changes or acne. These effects may improve after the body adjusts to the method.
Some people may have lighter periods while using hormonal IUDs, implants or injections. Others may experience irregular bleeding, especially during the first months of use.
Combined hormonal contraceptives can slightly increase the risk of blood clots, stroke and heart attack. The risk may be higher among smokers aged above 35, people with high blood pressure or those with a history of blood clotting problems.
Why medical advice matters
The safest approach is to avoid sharing medicines, buying unverified sexual-enhancement pills or starting a contraceptive method without advice from a trained health worker. Viagra and contraceptives can support sexual and reproductive health when used correctly, but they are not one-size-fits-all medicines.
The World Health Organization notes that contraceptive choice should be based on a person’s health needs, preferences and access to proper counselling. Speaking openly with a trained health worker can help users choose a method that is safe, effective and suitable for their lifestyle.
