Koyogra: A Brand of Sildenafil for Erectile Dysfunction

What it is

Koyogra is a brand of sildenafil, which belongs to a class of medicines called phosphodiesterase-5 (PDE5) inhibitors. It helps improve blood flow to the penis to treat erectile dysfunction.

What it's used for

Koyogra is used to treat erectile dysfunction (ED), which is the inability to get or keep an erection firm enough for sexual activity.

How it's taken

Koyogra comes as a 100 mg tablet. It is typically taken as needed about 1 hour before sexual activity, but can be taken anywhere from 30 minutes to 4 hours beforehand. The usual starting dose is 50 mg; your doctor may increase or decrease the dose based on how well it works and how you tolerate it. Do not take more than one tablet in a 24-hour period. Always follow your doctor's or pharmacist's advice.

Common side effects

Possible side effects include headaches, flushing, indigestion, nasal congestion, and dizziness. More serious side effects (though rare) include prolonged erection lasting more than 4 hours (priapism), sudden vision loss, hearing loss, and a drop in blood pressure when taken with certain medicines. If you experience any severe or concerning symptoms, seek medical help immediately.

Important cautions

Do not use Koyogra if you take any form of nitrates (often given for chest pain) or guanylate cyclase stimulators like riociguat. You should not use it if sexual activity is not recommended due to your heart condition. If you have an erection that lasts longer than 4 hours, get emergency care. Stop taking Koyogra and see a doctor if you experience sudden loss of vision in one or both eyes. Also use caution if you take alpha-blockers or blood pressure medicines, as it may cause a sudden drop in blood pressure.

Frequently asked questions