Short answer: Cenforce 100 usually works for about 4 to 6 hours. It contains sildenafil 100 mg, the same active ingredient as Viagra, and starts working about 30 to 60 minutes after you take it. It does not cause a constant erection: you still need sexual stimulation during that window.
Cenforce 100 timeline
| Time after the tablet | What to expect |
|---|---|
| 0 to 30 minutes | Being absorbed. Usually too early for a reliable effect. |
| 30 to 60 minutes | Starts working for most men. About 1 hour before sex is the usual advice. |
| 1 to 4 hours | Strongest effect. |
| 4 to 6 hours | Effect fades for most men. |
| 24 hours | The earliest you may take another dose. |
When to take it
Take one tablet with water about an hour before sexual activity. It can be taken anywhere from 30 minutes to 4 hours before. Never take more than one dose in 24 hours, and never take two tablets to make it last longer: 100 mg is already the highest recommended dose of sildenafil for ED.
What changes how long it lasts
- Food: a heavy, high-fat meal delays the start by up to about an hour. A light meal or an empty stomach works faster.
- Alcohol: a drink or two is usually fine, but more makes erections harder and adds to dizziness and headache.
- Age, liver and kidneys: the medicine stays in the body longer in older men and in people with liver or kidney problems, which is why doctors often start them on 25 mg.
- Other medicines: some antibiotics, antifungals and HIV medicines raise sildenafil levels. Tell your doctor everything you take.
Need it to last longer?
Do not increase the dose yourself. If 4 to 6 hours is not enough, ask your doctor about tadalafil (generic Cialis), which can work for up to 36 hours. See tadalafil vs sildenafil and generic Cialis.
Cenforce 100 and other sildenafil 100 mg brands
Cenforce 100 is made by Centurion Laboratories. Fildena 100, Kamagra 100 and Malegra 100 contain the same amount of sildenafil and last the same time. Compare them all by price per tablet on our sildenafil 100 mg comparison, or see Cenforce vs Fildena. Product page: Cenforce 100 mg.
Get help right away if
- an erection lasts longer than 4 hours
- you have chest pain, fainting, or a sudden loss of vision or hearing
Never take sildenafil with nitrates for chest pain or with “poppers”: the combination can cause a dangerous drop in blood pressure.
Frequently asked questions
How long does Cenforce 100 take to work?
Usually 30 to 60 minutes. After a heavy meal it can take longer.
Can Cenforce 100 last 24 hours?
No. Sildenafil works for about 4 to 6 hours. For a longer window, tadalafil lasts up to 36 hours.
Can I take Cenforce 100 every day?
Only if your doctor says so, and never more than once in 24 hours. For daily use, doctors usually prescribe low-dose tadalafil instead.
Do I need a prescription for Cenforce 100?
Yes. Sildenafil is a prescription medicine. ERXCart checks a valid prescription before any order ships.
References
- Sildenafil – MedlinePlus Drug Information (U.S. National Library of Medicine)
- Erection problems – MedlinePlus Medical Encyclopedia
General information only, not medical advice. A valid prescription is required. Talk to your doctor before using any ED medicine, especially if you take nitrates or have heart problems.