The effects of Fildena 50 mg (which contains Sildenafil Citrate, the same active ingredient as Viagra) generally last for 4 to 6 hours after taking the medication. However, this can vary depending on factors such as: Individual metabolism: People with faster metabolisms may process the drug more quickly, causing the effects to wear off sooner. Age and overall health: Older individuals or those with liver or kidney issues may experience longer-lasting effects. Food intake: Taking Fildena 50 with a heavy meal, particularly one high in fat, may delay its absorption and prolong the duration of effects. Sexual arousal: The medication helps achieve and maintain an erection when sexually aroused, so if there’s no sexual stimulation, the effects may not be as noticeable. After the effects wear off, you will generally return to your normal state. It’s important to remember that the medication doesn't increase sexual desire on its own and requires sexual stimulation to work. If you experience an erection lasting more than 4 hours (a condition called priapism), seek immediate medical attention, as this can be a medical emergency.