IASH India: Institute of Andrology & Sexual Health India
Sildenafil (Viagra): Usage, Dosage, Side Effects & Precautions

Sildenafil is the ideal medicine that helps men get perfect erections. A lot of men have been suffering from the problem of Erectile Dysfunction, and the main problem lies that there has not been an ideal solution for it. But now with Sildenafil, it is possible. By reports, every 5th or 6th man is not able to keep or hold erections for long. And most erection problems are an outcome of physiological symptoms; which include heart diseases, blood pressure, nightfall, cardiovascular disease, etc.

As sexual problems in men are rising; some effective results have been found by doctors which can help men to last long in bed. One of the most effective medicines which doctors have found is Sildenafil. So, in this blog, you get the full information about the usage, benefits, and effects of the Sildenafil drug.

What is Sildenafil (Viagra)?

It is a drug that comes under the name Viagra. And also, it helps erectile dysfunction treatment well; and is an approved drug to cure it. Viagra has major content of Sildenafil, which belongs to the family of phosphodiesterase type 5 (PDE5) inhibitors.

The main function of the medicine is to first increase the blood flow in the private part of the men’s genitals. Then after a while, this proper blood flow can promote firm and rigid constant erections in the body of men. This medicine however only works on your body if you are well sexually aroused. And this is how the problem of Erectile dysfunction is cured using a Sildenafil drug.

Usage of Sildenafil

If many go through any of the problems which are mentioned below; they can use Sildenafil to treat their intimate problems-

  1. The one who is not able to get a perfect erection.
  2. If you are unable to hold your erection for long.
  3. Also, if you are not able to get a firm and rigid ejaculation.

If you are not sure that you are suffering from Erectile Dysfunction; you should definitely consult a sexologist before consuming any pills. However, if the symptoms are very much visible and if you are sure about your problem; you can buy the pills and can take them to cure your problem of Erectile Dysfunction. Sildenafil is also used by men and women to cure the problem of pulmonary arterial hypertension.

When to not use Sildenafil-

It is better to consume the drug, only after talking to a sexologist. As with any other drug Sildenafil also can have some minor side effects or ill effects on the body. However, below mentioned are some situations; where you should completely abstain from taking Sildenafil.

  1. If the consumer has an allergic reaction to Sildenafil citrate.
  2. If you suffer from a disease of chest pain; and you take nitrate medicine for it. You should not take Sildenafil under any conditions.
  3. If you are already dealing with heart or liver problems.
  4. The medicine is also not recommended for the ones dealing with low blood pressure.
  5. If a person has got a recent heart attack or a stroke.

Dosage of Sildenafil-

There are a lot of variants of Sildenafil available in the market. In accordance with your extent of the problem of Erectile Dysfunction. Doctors, recommend you a particular dosage of Viagra. Mostly, if a person has severe Erectile dysfunction problems; doctors generally recommend them 50 mg of dosage of Viagra. However, for mild or low Erectile Dysfunction; a dosage of less than 30 mg is enough.

The multiple variants of Sildenafil in market and online market are as below-

  1. 5 mg Sildenafil
  2. 10 mg of Sildenafil
  3. 20 mg of Sildenafil
  4. 50 mg of Sildenafil ( The most popular variant)
  5. 100 mg of Sildenafil

There are different dosages for different ages and different problems. It should be noted that below the age of 18 are not advised to be taken as the studies have been only above 18 years. And if you are above the age of 65 then you should go slow with the lowest dose as suggested by the doctor. Below are the dosage as per the problem and age:-

  • Dosage for erectile dysfunction (ED)
  • Dosage for pulmonary arterial hypertension (PAH)

Dosage for erectile dysfunction (ED)(ages 18–64 years)

The dose of sildenafil for erectile dysfunction should take between 30mins to 4 hours. You should always first visit a doctor before taking any dose. But the recommended dosage is sildenafil 50mg but the maximum dosage once a day is 100mg.

Dosage for pulmonary arterial hypertension (PAH)(ages 18–64 years)

For pulmonary arterial hypertension, the dosage is between 5mg to 20mg and it should be taken 3 times a day and the time gap is between 4 to 6 hours. The maximum dosage suggested is 20mg and it should be taken 3 times a day and the time gap is between 4 to 6 hours.

Side Effects of using Sildenafil-

However, the drug is extremely safe to use. And the medicine do not have any harmful effects on the body. There are some minor issues which one can go through on man’s body and brain which he can get in future. Also, if someone feels unusual after consuming Viagra, they should see a doctor immediately. Below are some if the most common ill effects of consuming Viagra-

  1. Headaches
  2. Dizziness and Nausea
  3. Back pain or Muscle pain
  4. Rashes
  5. Change in vision or blurred vision

What to avoid

Drinking alcohol with sildenafil can cause side effects. Grapefruit may interact with sildenafil and lead to unwanted side effects. Avoid the use of grapefruit products. Avoid using any other medicines to treat impotence, such as alprostadil or yohimbine, without first talking to your doctor.

Taking sildenafil with other medicines and herbal supplements

Some medicines do not mix well with sildenafil. Tell your pharmacist or doctor if you’re taking any of these medicines before you start sildenafil:

  • nitrates for chest pain (angina)
  • riociguat for pulmonary hypertension

Mixing sildenafil with herbal remedies or supplements. It’s not possible to say that herbal remedies and supplements are safe to take with sildenafil. They’re not tested in the same way as pharmacy and prescription medicines.

Can Women Take Sildenafil-

A lot of people believe that is completely safe for women to consume Sildenafil to treat their sexual problems. However, no doctor will ever recommend the usage of Sildenafil to treat female sexual problems. Also, a lot of studies say that this drug is not meant for women to consume.

Most of the sexual issues in women are due to a lack of sexual desire in them; towards their partners. And hence Viagra has no role to cure it.

Pregnancy, breastfeeding, and fertility

Pulmonary hypertension is an extremely serious condition in pregnancy. If you have pulmonary hypertension, it’s important to use reliable contraception. So before taking any medicine in such case kindly consult the doctor.

How to buy Sildenafil online-

The medicine is both available in offline and online markets and does not require any medical prescription to buy it. Also, if you buy the medicine online. Make sure you buy it from a genuine brand; as a lot of brands prove to give genuine products, but the products are not of good quality. Which can make the situation worse.

You can buy this medicine from one of the most trusted brands in India which is Ohman. Ohman’s online portal delivers the best and most effective solutions for early discharge problems. This online portal is wholesomely dedicated to treating the different sexual problems that men go through.

Important warnings

  • Priapism warning: This drug can cause priapism, which is an erection that won’t go away. If you have an erection that lasts more than 4 hours, call 108 or go to the nearest hospital. If it’s not treated right away, this condition can cause permanent damage to your penis.
  • Sudden vision loss warning: This drug can cause sudden vision loss in one or both eyes. This can be a sign of a serious eye problem. If this occurs, stop taking sildenafil and call your doctor right away.
  • Sudden hearing loss warning: This drug can cause hearing loss, tinnitus (ringing in your ears), or dizziness. If you have sudden hearing loss with or without tinnitus or dizziness, stop taking sildenafil and call your doctor right away.
  • Use in children warning: Children generally should not take sildenafil; however, there are instances where the drug is considered the best treatment option. Talk with your child’s doctor to better understand the benefits and risks associated with this treatment option.


If a person cannot take sildenafil, wishes to avoid it, or wants to try something else, there are other optionsTrusted Source to treat ED.

Other PDE5 inhibitors include:

  • avanafil (Stendra)
  • tadalafil (Cialis)
  • vardenafil (Levitra)

Other treatment options include:

  • ED pumps
  • penile implants
  • penile injections
  • prescription testosterone

People may also wish to consider making lifestyle adjustments to help manage the symptoms of ED. These may include:

  • quitting smoking
  • limiting alcohol intake
  • increasing physical activity

Mental health symptoms may also contribute to ED. Anxiety and stress about sex, for example, can make it more difficult for a person to get or maintain an erection. Talking with a mental health professional may help.

Take Away

Erectile Dysfunction is a prevailing and common sexual problem. Which most of the men are going through. This problem can cause a lot of unsatisfactory personal life. As men are not able to please their partners well during intercourse. This can also cause a lot of frustration and stress in life. But now doctors have found an easy and affordable solution for your problem of Erectile Dysfunction; which is taking Viagra.

You should take the medicine as per the guidance of the sexologist. And should regularly take the medicine to see the desired results of the medicine. If you are suffering from any other sexual or intimate problem then you can consult IASH’s Sexologist in Delhi. You can check out the official website of Ohman. And order your products today. Also, all the medicines are safe to use and are approved by FDA. So, if you also need a safe and effective solution to all your sexual problems. Order your products today from Ohman and get a permanent solution to your problems.

Frequently Asked Question

Q1. What if I forget to take it?
If you are taking Revatio and you forget to take your scheduled dose, take it as soon as possible. However, you should never double your dosage. If you completely miss a dose and it’s time for the next dose, skip the one you missed.

Q2. Are there any safety measures I should take before using this drug?
Like most medications, there are precautions you should take before using this drug. Make sure you talk with your doctor about:

  • any medication allergies you may have
  • any other drugs, medications, herbs, or supplements you take or plan to take
  • any medical conditions or surgeries you have or plan to have
  • if you are pregnant or plan to become pregnant

Q3. Can Viagra make sex last longer?
No, studies haven’t shown that Viagra makes sex last longer. However, the drug can help you to get and keep an erection. And studies have shown that Viagra can increase satisfaction from sex.

Q4. Does Viagra increase the size of a man’s penis?
No, Viagra doesn’t increase the size of a man’s penis. In fact, to date, there aren’t any known ways to permanently increase the size of a man’s penis. Viagra helps you get an erection if you’re sexually aroused. This may temporarily increase the size of your penis until the erection goes away. But Viagra doesn’t permanently increase the size of your penis.

Q5. How long does it take for Viagra (sildenafil) to take effect?
Viagra (sildenafil) will kick in about 30-60 minutes after taking it.

Q6. Should you take Viagra (sildenafil) if you don’t need it?
If you haven’t been told you have erectile dysfunction by your doctor, you shouldn’t take this for sexual performance without first discussing it with your doctor.

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