For most patients, the recommended dose of sildenafil API is 50mg

Sildenafil
Molecular formula
Molecular weight
Melting point ~ ℃
English name
Purpose: phosphodiesterase inhibitor, used to treat erectile dysfunction .
Also known as Viagra
The main ingredients and chemical name of this product are [ethoxy[dihydromethyloxypropylpyrazolo[,]pyrimidine)]benzenesulfonyl]methylpiperazine citron Acid salt
[Molecular formula]
[Molecular weight]
[Content] The above
Efficacy
Sildenafil is absorbed rapidly after oral administration, ~ reaches the blood peak, and is effective internally. Bioavailability approx. Food can significantly reduce the speed, extent and onset of sildenafil absorption. Sildenafil is mainly metabolized by the liver into active metabolites, which are excreted approximately in the feces and in the urine. It is not excreted in [prohibited words]. The half-lives of both the parent drug and the active metabolite are.
Usage and Dosage
For most patients, the recommended dose is to be taken approximately one hour before sexual activity but can be taken at any time within one hour before sexual activity. The dose may be increased to mg (maximum recommended dose) or decreased to mg based on efficacy and tolerability. Maximum number of doses per day.
The following factors are associated with increased plasma sildenafil levels: age and older (increased), liver damage (e.g., cirrhosis, increased), severe renal impairment (creatinine clearance Studies have shown that protease inhibitors can significantly increase the blood level of sildenafil (by a factor of two). For this reason, it is recommended that patients take no more than the maximum dose per hour.