Both Viagra (sildenafil) and Cialis (tadalafil) can cause side effects, though their frequency and severity vary. Viagra users more commonly report headaches, flushing, and nasal congestion. Cialis side effects are generally similar, but back pain and muscle aches occur more frequently. Both medications can cause blurry vision, and rarely, more serious issues such as hearing loss or heart problems.
Viagra Side Effects
Headaches are a common Viagra side effect, often mild and temporary. Flushing (redness in the face) also occurs frequently. Other potential side effects include nasal congestion, indigestion, and visual disturbances. Rare but serious side effects require immediate medical attention and include prolonged erections (priapism) and sudden vision or hearing loss.
Cialis Side Effects
Cialis users often report muscle aches and back pain, more so than Viagra users. Headaches, flushing, and nasal congestion also occur. Similar to Viagra, visual disturbances are possible. Prolonged erections and sudden sensory loss are also rare but serious side effects requiring urgent medical attention.
Both medications can interact negatively with nitrates (used for chest pain), alpha-blockers (used for high blood pressure and enlarged prostate), and some antifungal medications. Consult your doctor about all medications and supplements you take before starting Viagra or Cialis to avoid dangerous interactions. Always follow your doctor’s instructions regarding dosage and frequency of use.
