＊ Half-life as recorded in the domestic drug monograph.

** The suggested initial dosage is the starting dose recommended by the pharmaceutical company.

Precautions

• If an erection lasts longer than 4 hours after taking the medication, seek medical attention immediately.
• Currently, there are no reports of these three medications being used together, and it is not recommended to use them simultaneously.
• Using these three medications will not increase libido, Taking the medication without sexual stimulation will not result in an erection.
• If you experience any discomfort after taking the medication, inform your doctor.

There are currently three approved medications available for treating erectile dysfunction in the domestic market: Viagra (Sildenafil), Spedra (Avanafil), and Cialis (Tadalafil). According to the results of clinical trials, the mechanism of action of these three drugs is to promote the relaxation of penile smooth muscle, leading to full of penile blood and erection. As for clinical efficacy, there is currently no evidence to suggest which medication is more effective. All three medications cause vasodilation and may have an additive effect with nitrate medications commonly used by patients with cardiovascular disease, potentially leading to dangerously low blood pressure. Therefore, patients with unstable coronary artery disease and those taking nitrate medications are not suitable for these three drugs. Additionally, patients with cardiovascular disease should use them with caution and consult a doctor for evaluation before use.