Caverta 100 mg contains sildenafil, the same active ingredient as Viagra. Its effects typically last around 4 to 6 hours, although this can vary depending on factors such as your metabolism, overall health, and whether you've taken it with food.

Here’s how it works:

Peak Effect: The peak effectiveness of Caverta 100mg occurs within about 1 hour after taking it, when the blood concentration is highest.

Duration: While the medication can last for 4 to 6 hours, its ability to produce an erection will only be triggered when you are sexually aroused. It does not cause an erection automatically.

Individual Variation: The duration can vary. For some men, it may last a bit longer or shorter depending on individual factors like age, health conditions (especially those related to circulation or the liver), and whether the pill was taken with a large or fatty meal.

It's important to note that Caverta does not provide continuous erections during its active period, but it enhances the ability to get and maintain an erection when sexual stimulation occurs within that timeframe.