Cenforce 25 mg (sildenafil 25 mg) can be considered fast-acting, but the speed varies from person to person. Onset: It usually starts working in about 30–60 minutes after taking it. Best timing: Many men take it around 1 hour before sexual activity. Food effect: A heavy or high-fat meal can Cenforce 25 mg how quickly it starts working. Taking it after a light meal or on an empty stomach may allow a faster effect. Duration: Effects may last for about 4–6 hours in many men (though this varies). It requires sexual stimulation to work; it does not cause an automatic erection. Cenforce 25 mg is a lower sildenafil dose and may be suitable for some men, especially those who are sensitive to side effects or are advised to start lower. If it is not effective, a doctor may adjust the dose based on your health and response. Do you want to compare Cenforce 25 mg vs 50 mg vs 100 mg for speed and strength?