Decision frame
What actually matters when comparing these options
**Onset of Action**: Sildenafil typically begins to work within 30-60 minutes, while Tadalafil may take 30-45 minutes to show effects.
**Duration of Effect**: A primary difference is duration; Sildenafil's effects usually last for about 4-5 hours, whereas Tadalafil can be effective for up to 36 hours.
**Potential Side Effects**: Both medications can cause side effects like headaches, flushing, nasal congestion, and dyspepsia. Tadalafil may also be associated with back pain or muscle aches.
**Contraindications and Safety**: Both Sildenafil and Tadalafil have important contraindications, particularly with nitrate medications for heart conditions, and can interact with other drugs. It is crucial to discuss your complete medical history and all current medications with a doctor.
**Consult Your Doctor**: This information is provided for educational purposes and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider for any questions you may have regarding a medical condition.