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Using pills to increase the duration of erection without proper medical prescription is very dangerous.

There are medicines such as sildenafil (Viagra), tadalafil, and others that are used to treat erectile dysfunction, but should be prescribed by a doctor. These medications may have potential side effects and may interact with other medications or medical conditions a person has. In addition, there are unregulated products on the market that are sold as "natural remedies" for this purpose, but may contain unidentified ingredients, contaminants or be simply ineffective or dangerous.

If you have problems with the duration of erection, a doctor who specializes in urology or sexual health should be consulted for appropriate evaluation and appropriate treatment.