Sildenafil citrate, the active ingredient in Viagra, functions by inhibiting an enzyme called phosphodiesterase-5 (PDE5). This inhibition increases blood flow to the penis, facilitating an erection.
The recommended starting dose is typically 50mg, taken as needed, about one hour before sexual activity. However, your doctor may adjust this based on your individual needs and response. Dosages range from 25mg to 100mg.
Sildenafil’s effects usually last for four to five hours, although individual experiences vary. It’s crucial to note that sildenafil does not create desire; it only helps achieve and maintain an erection in response to sexual stimulation.
Potential side effects include headaches, flushing, nasal congestion, and visual disturbances. Serious side effects are rare but necessitate immediate medical attention. Consult your physician before use, especially if you have heart conditions, high or low blood pressure, or liver or kidney problems.
| 25mg | 30-60 minutes | 4-5 hours |
| 50mg | 30-60 minutes | 4-5 hours |
| 100mg | 30-60 minutes | 4-5 hours |
Avoid consuming grapefruit juice while taking sildenafil, as it can increase its blood levels. Also, avoid combining sildenafil with other medications without your doctor’s approval.
Remember, this information is for general knowledge and does not substitute professional medical advice. Always consult a healthcare provider before starting any medication, including sildenafil.
