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Viagra, generally known as Filagra (in India), is an oral medicine in the form of diamond blue tablets used for erectile dysfunction in men. The therapy helps in blood circulation by enhancing the opening tissues of blood vessels during the release of testosterone. Hence increasing the flow of blood in the testicles. The medication is available in both pharmacies as well as online stores. You can also buy Filagra online with one-click booking and the fastest delivery.

General Information of Filagra Tablet

  • Active Ingredient: Sildenafil/ Sildenafil Citrate
  • Brand Name: Viagra and Revatio
  • Used for: Erectile dysfunction
  • Drug Group: Phosphodiesterase 5 (PDE5) inhibitors

Uses of Filagra Tablets

Filagra is sold majorly by 2 brands and the functionalities differ accordingly:

Use of Filagra Pill in the Composition of Viagra

In the form of Viagra, Filagra is used for the treatment of erectile dysfunction with sildenafil citrate as the main active component that activates and rushes the flow of blood in the testicles during sexual intercourse.

Sildenafil works with several inactive components such as Titanium Dioxide, Lactose, and #2 Aluminum Lake.

Use of Filagra in the composition of Revatio

In the form of Revatio, Filagra works mainly in treating Pulmonary Arterial Hypertension in adults and children. The medication in a way shares the load of the heart by pumping blood in the blocked vessels through the lungs and maintaining the blood pressure along.

General Guidelines to Use Filagra Tablets

  • Do not take more than one tablet a day.
  • The dosage can change as per the effects on the body. So do not stick to one dosage forcefully.
  • Take the pill around 30 min – 1 hour before sexual intercourse. Now you can also take a pill 3-4 hours before intercourse but the effects are likely to be reduced with time of consumption.
  • Filagra can be for as long as you wish as per the guidance of your doctor.
  • Do not use Viagra and Revatio at the same time.
  • Filagra is taken when needed, so you are highly unlikely to miss a dose.

Doses of Filagra Drug

Filagra is available in 3 doses: 25mg, 50 mg, and 100 mg. It is prescribed to not take more than 100mg as it can have severe and long-lasting side effects. Sometimes, even results in permanent erectile dysfunction.

Filagra 25 mg

Viagra 25 mg is the lowest mg available in the market with the least side effects. It is prescribed mainly if you are on other medications that could react with Viagra. You can also consult your doctor to reduce the dosage from 50 mg to 25 mg if the prior works fine for you but the side effects are a wreck.

Filagra 50 mg

It is the most standard mg of Viagra available in the market. Usually prescribed by most doctors at the start of the treatment, this medication is believed to have shown the maximum result. Filagra 50 mg has medium side effects and is up to 80% effective in men.

Filagra 100 mg

Filagra 100mg is the highest dose for a day that is prescribed by any doctor in the market. Do not move to the highest dose without consulting your doctor and also do not take more than one tablet a day. It can have serious side effects and is more prone to them as compared to the variants of 25 mg and 50 mg.

Can I buy filagra Online?

Yes, you can buy filagra online at the best price from an authorized online drug store.

Side Effects of Using Filagra Medicine

Keep in mind that no matter how good a medicine is, it will have some major and minor effects on your body.

Filagra has both major and minor effects. Consult immediately to your doctor in case of major effects whereas if the minor effects seem out of control, do visit your doctor.

Major side effects of Filagra Medication

  • Sudden loss of vision and hearing.
  • Increased chances of heart attack and stroke along with dizziness, vomiting, nausea, sudden and abnormal increase in heart rate, and loss of consciousness.
  • An acute condition of Priapism( it is a condition with prolonged amount of erection).
  • The sudden drop in blood pressure.

Minor side effects of Filagra Tablets

  • Nosebleeds
  • Long-lasting erections
  • Sore throat
  • Cold and cough
  • Upset stomach
  • Numbness in the body parts

Interaction with other Drugs

With Nitrates

Nitrates in any medication form such as oxides and cGMP pathway are harmful when taken with Viagra/Filagra. Both medications work by dilating the blood vessels to increase the flow of blood to specific parts of the body. This dilation results in low blood pressure.

When combined together, the medications can result in an extreme drop in blood pressure that can ultimately lead to heart attacks, strokes, and passing out.


Alpha-blockers are drugs used for the treatment of Benign Prostatic Hyperplasia and Blood Pressure by relaxing the blood vessels. Filagra with Alpha-blockers should only be combined under the supervision of doctors only, as both when combined can cause dizziness, nausea, and an extreme decrease in blood pressure.

Before combining both, be sure that the person is already stable on Alpha-blockers, and start with the lowest dose of Filagra (Viagra 25mg).

With Ritonavir

Ritonavir is a chemically composed CYP3A4 inhibitor that somehow reacting with Filagra releases chemicals that support the side effects of Filagra/Viagra. So there is a good chance that Ritonavir will help in worsening side effects such as hypotension, increased heart rate, nausea, prolonged erection, and such.


Alcohol can react in different ways with Ritonavir as per the overall health of a person. For example, in some cases, alcohol is known to cut the effects of Viagra and even worsen the condition of erectile dysfunction while in others it is known to worsen the side effects such as nausea, increased heart rate, nosebleeds, and as such.

Alcohol works by loosening the blood vessels and hence when combined with Filagra, it can reduce the blood pressure to a dangerously low rate.

Grapefruit juice

Liver Proteins break Filagra molecules into simpler particles to initiate the working of the medication. If a person consumes some product( for example, Grapefruit Juice) that stimulates the flow of liver proteins, then the combination is likely to have a bad effect.

Grapefruit when reacts with Filagra and Liver Proteins can worsen the side effects of medication such as skin flushing, heart strokes, losing consciousness, and some others