Both Viagra (sildenafil) and Cialis (tadalafil) can cause side effects, though their frequency and severity vary among individuals. Common side effects include headache, flushing, nasal congestion, and indigestion. These are usually mild and temporary.
More serious, though less common, side effects involve vision changes (blurred vision, blue-tinted vision), hearing loss, and prolonged erection (priapism). Seek immediate medical attention if you experience a prolonged erection lasting more than four hours. Sudden vision or hearing loss also requires immediate medical help.
Certain pre-existing conditions can increase the risk of side effects. For example, men with heart problems or low blood pressure should discuss potential risks with their doctor before using these medications. Similarly, individuals taking nitrates for chest pain should absolutely avoid Viagra and Cialis due to the risk of dangerously low blood pressure.
Muscle aches, back pain, and dizziness are other possible side effects. If you experience any unexpected or concerning side effects, contact your doctor or pharmacist. They can help assess your individual risk and provide guidance.
Remember to follow your doctor’s instructions carefully regarding dosage and frequency of use. This helps minimize the risk of side effects and ensures optimal treatment.


