Never combine Cialis and Viagra without explicit guidance from your doctor. Simultaneous use significantly increases the risk of dangerously low blood pressure and prolonged erection (priapism).
Cialis Dosage
Cialis (tadalafil) comes in various dosages (2.5mg, 5mg, 10mg, 20mg). Your doctor determines the appropriate dose based on your health, medical history, and response to treatment. Start with a lower dose and gradually increase it only if needed and under medical supervision. Don’t exceed the prescribed dose.
Viagra Dosage
Viagra (sildenafil) dosages range from 25mg to 100mg. Similar to Cialis, your doctor will personalize your dosage. Never self-adjust your Viagra dose. Increased dosage doesn’t guarantee better results and carries increased risk of side effects.
Potential Interactions
Combining Cialis and Viagra interacts negatively with nitrates (found in some heart medications), alpha-blockers (treating high blood pressure), and some antifungals. This combination can severely lower blood pressure, leading to dizziness, fainting, or even heart attack. Always inform your doctor about all medications you are taking, including over-the-counter drugs and supplements. Alcohol consumption can also amplify side effects.
Side Effects
Common side effects include headaches, facial flushing, nasal congestion, and indigestion. Serious side effects, though rare, include vision changes, hearing loss, and chest pain. Seek immediate medical attention if you experience these.


