Cenforce is a brand of medication that contains sildenafil citrate as its active ingredient. It's primarily used to treat erectile dysfunction (ED) in men. Sildenafil citrate works by increasing blood flow to the penis to help a man get and keep an erection. It's similar to other ED medications such as Viagra, but is typically sold at a lower cost.

Cenforce is usually taken orally, and the effects can be felt within 30 minutes to an hour of taking the pill. Its effects can last for several hours. However, it's important to note that sexual stimulation is required for the medication to work effectively.

As with any medication, there are potential side effects and it's important to consult with a healthcare professional before using it, especially if you have pre-existing health conditions or are taking other medications. Common side effects may include headaches, flushing, upset stomach, and in rare cases, more serious effects like vision or hearing loss. It's essential to follow the prescribed dosage and guidelines provided by a healthcare provider.

Cenforce is available in various strengths, each denoting the amount of sildenafil citrate it contains. The common strengths of Cenforce include: Cenforce 25 mg, Cenforce 50 mg, Cenforce 100 mg, Cenforce 150 mg, Cenforce 200 mg, Cenforce Professional, Cenforce Soft. 

It's crucial to start with a lower dose and only increase the dosage under the guidance of a healthcare professional, as higher doses increase the risk of side effects. Also, it's important to note that only one dose should be taken in a 24-hour period, regardless of the strength.