How Long Does Sildenafil Last (And Why)?

How Long Does Sildenafil Last (And Why)?

Exact Answer: 4 Hours

Sildenafil is a type of drug that is majorly used by erectile dysfunction (ED) patients to ameliorate their condition. It is a drug that helps men by increasing the blood flow to their penis and improve its function. It proves as an effective medicine for men who have trouble getting an erection. Sildenafil has helped many men to date and will continue to do so in the coming future.

Sildenafil is commonly sold under a brand name called Viagra among other brands. It assists by clearing the blood flow passage, thereby regulating and promoting increased blood flow in the body.

It is available in most pharmacies across the globe. One can easily get it from the chemist on prescription. Sildenafil comes in form of tablets that can be either chewed or swallowed and also in form of liquid that one can drink to ease his condition.

3 2 2

How Long Does Sildenafil Last?

Sildenafil starts workingAfter 20 – 30 minutes
Reaches the peak levels inside the bodyAfter 60 -120 minutes
Sildenafil lasts inside the bodyUp to 4 hours

Sildenafil is said to last approximately four hours inside the body. It takes about 30 minutes to one hour for sildenafil to work and evince its effects. It should be used with caution and only in the required and prescribed quantity.

The drug Sildenafil for ED patients can be taken by only men who are above 18 years of age. This drug is not made for women or to be used by kids. Also, certain people might experience extreme side effects of sildenafil and thus, can be unsuitable for some. One must refrain from taking it if one has any type of allergic reaction to any of the substances present in the said drug.

Sildenafil and chest pain medicines are deadly combinations that can cost lives. Such a combination can cause a tremendous dip in blood pressure. One must always consult a doctor before consuming any type of medicine.

Sildenafil comes in various strengths like in dosage of 25mg, 50mg, and 100mg. 50mg is ideally considered as the usual dose to be taken only once a day. However, if prescribed by a doctor, one can even take dosages of 25mg or even 100mg according to one’s desired effect of the drug on the body.

Why Does Sildenafil Last This Long?

The maximum effect of the drug is observed between 30 minutes to 2 and a half hours after one takes it. Sildenafil remains effective and lasts in the body for about four hours. Despite this general notion, several factors can influence and change this timeframe.

If one’s body is quick in absorbing, sildenafil might get absorbed extremely quickly in about 20 – 40 minutes. When consumed on an empty stomach, it might reach the peak levels inside the body after an hour. However, if one has recently eaten, this might take a bit longer. Whatever may be the case, sildenafil will last for about 3 – 5 hours and will be entirely gone from the body by the end of the day.

Sildenafil has a half-life of only four hours. This symbolizes that after about four hours inside the body, sildenafil leaves the bloodstream. However, for certain men, the effect can last even up to 10 hours, but this is a rare possibility.

After 1 hour, the concentration of the drug is said to be found maximum inside the body. The drug is in high concentration in the bloodstream which can potentially increase further by another hour if the person has eaten food before taking sildenafil. One will not find any traces of the drug in the bloodstream after complete 24 hours as none of the substances in sildenafil remain active for such a long time.

Although sildenafil is an effective medication for erectile dysfunction, it too can certainly cause side effects. Some of the most common side effects of taking sildenafil are headaches, dizziness, blurred vision, nausea, dyspepsia (indigestion), etc.


Sildenafil is a drug popularly prescribed for ED patients to enhance their erectile function. It reaches its maximum effect inside the body within one hour. One can remember that it kicks in faster when taken on an empty stomach. It can remain effective for about 3 to 5 hours and thus, is said to last for 4 hours inside one’s body.

Sildenafil makes it easier for ED patients to have a proper erection. The effects of the drug will gradually reduce over time and will be fully gone within 24 hours. Care must be taken to never take more dosage of the drug than prescribed.



dot 1
One request?

I’ve put so much effort writing this blog post to provide value to you. It’ll be very helpful for me, if you consider sharing it on social media or with your friends/family. SHARING IS ♥️

Avatar of Nidhi


Hi! I'm Nidhi.

Here at the EHL, it's all about delicious, easy recipes for casual entertaining. So come and join me at the beach, relax and enjoy the food.

Leave a Reply

Your email address will not be published. Required fields are marked *