How long will Viagra work on your body, or how long it will last, depends on various other factors. The factors are as follows:

• Age: The first factor is how old are you. It means that the older you get; the effect of Viagra will stay longer in your body. Suppose, you are 65 years old, then you will find Viagra is staying longer in your body.

• Diet: When you have a large diet with a higher amount of fat before you take Viagra, you are going to find that Viagra is taking more time to start its effect on your body. The reason is that when your digestive system has more fat, the time taken by Viagra to enter your bloodstream is more, it will slowly mix with your bloodstream. However, if you take Viagra on an empty stomach, you might feel the effect of Viagra is taking less time to kick off.

• Alcohol: When you take alcohol, blood will flow slowly in your penis, so your penis won’t get a constant erection at that time. You can take only one glass of beer or a glass of wine, but still, alcohol will have its effect. If you take more than two units of alcohol, the negative side effects from it will start happening after taking Viagra, and you will have difficulty in maintaining your erection.

• Dosage: You are going to get Viagra in three types of dosage packages, 25mg, 50mg, and 100mg. The bigger the dosage it, the longer is the time your erection will last but also has bigger risks of side-effects. Better to ask a doctor the dosage that will be best for you.

• General Health: When you have liver or kidney conditions, you shouldn’t take Viagra, though Viagra’s effect can last longer in these conditions.

• Drug Interactions: Some medicines can reduce the longevity of effectiveness of Viagra, and some medicines might be dangerous and life-threatening if you take Viagra with them. It is always better to consult with your doctor before starting to take Viagra.

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