Penegra 50 mg, which contains Sildenafil Citrate, typically remains in the system for about 4 to 6 hours. This is because the medication's effects generally last for this duration, although the exact time can vary depending on individual factors such as:

Metabolism: Faster metabolisms may process the medication more quickly.
Age: Older adults may experience a longer duration of effects due to slower metabolism.
Health Conditions: Liver or kidney conditions can affect how long the drug stays in your system.
Dosage: Higher doses might stay in the system longer.
The medication works by increasing blood flow to the penis, helping to achieve and maintain an erection in response to sexual stimulation. If you have concerns about how long Penegra 50mg remains in your system or its effects, it's a good idea to consult with your healthcare provider.