Revatio: Vasodilator Containing Sildenafil Citrate 20 mg

What is Revatio

Revation is a famous and powerful vasodilator with sildenafil citrate as the main active component. It was FDA approved in 2005 and fully tested, so the medicine is rather reliable and of high quality. Original brand Revatio is produced by Pfizer.Inc, but now you can buy generic revatio online, for example, because the patent term is over and other manufacturers are in right to use the technology to make less expensive analogues.

Indications

The initial aim of the medicine is pulmonary hypertension treatment. However, due to the peculiarities of its mechanism of action, Revatio is often used to cure erectile dysfunction.
The thing is that sildenafil citrate 20 mg contained in the tablets is a selective inhibitor of PDE-5. It acts by increasing the amount of cGMP in pulmonary vascular smooth muscles resulting in their relaxation and widening, which improves blood circulation, especially in lungs and genitalia. But it should be mentioned that Revatio is not approved as a remedy to cure erectile dysfunction, so you will hardly get it prescribed in this case.

Dosage

revatio tablets

There are various types of forms Revatio is available in, including powder for oral suspension and intravenous injections, but the most popular form is revatio tablets for oral use. They are to be taken each 4-6 hours undependable of meals, one dosage is maximum 60 mg, while the common recommended dosage is 5-20 mg three times a day. Dosage for injections is different, and 10 mg of the drug injected are equal to 20 mg of revatio taken orally.

As for tablets, they look quite ordinary: white, covered with film-coat and featuring “RVT20” engraving on one side and “Pfizer” brand graving on the other side. You are to be attentive when using generic version of the drug, as it might vary both in the recommended dosage and amount of sildenafil contained in one pill.

It’s advised that you take Revatio dosage at the same time every day. If you forget to take a dose, do it as soon as you remember unless it’s about time to take another dosage – then you should skip the one. It’s prohibited to take more than one dosage at a time, as it can lead to overdose. Also don’t stop taking the medicine without doctor’s permission.

Contraindications

There are some groups of people who are prohibited to take Revatio:

  1. Those who are taking organic nitrates, as simultaneous use of sildenafil and nitrates increases the risk of hypotension.
  2. Those who are allergic to sildenafil or any other component of the tablet, which include microcrystalline cellulose, dicalcium phosphate, croscarmellose sodium, magnesium stearate,
    HPMC, titania, lactose monohydrate and Glycerol triacetate.

sildenadil citrate 20mg

Moreover, you are to inform your doctor and be extremely careful when taking Revatio in case of:

  • Pulmonary veno-occlusive disease;
  • Loss of sight in one eye because of non-arteritic anterior ischemic optic neuropathy;
  • Heart or coronary artery diseases, heart rhythm problems;
  • Liver or kidney diseases;
  • Retinitis pigmentosa;
  • Sickle cell anemia, multiple myeloma or leukemia;
  • Bleeding disorder;
  • Recent heart attack or stroke;
  • Stomach ulcer;
  • Penis deformity,

The conditions mentioned above don’t exclude the prescription of Revatio, but they might influence the dosage and make your doctor look after your state more carefully.

Side Effects

All the drugs may cause side effects, and so does Revatio. When taking it you may experience:

pulmonary hypertension treatment

  • Unexpected decrease or loss of hearing;
  • Bad eyesight or loss of it in either one or both eyes;
  • Increased shortness of breathe;
  • Blood pressure lowering;
  • Heart attack, stroke, irregular heartbeats (especially in people who have already had such problems);
  • Erection lasting more than 4 hours.

In case you have noticed the side effects mentioned above, it’s necessary to inform your doctor urgently and get emergency help.

There are also common side effects of Revatio, which include:

  • Nosebleed;
  • Headache;
  • Flushing;
  • Insomnia;
  • Nausea;
  • Vomiting;
  • Upset stomach;
  • Respiratory infections up to pneumonia.

These side effects are not as dangerous as those mentioned before, and they usually disappear themselves. If you still experience them for a long period of time, you should call your doctor.

Interaction

generic revatio online

You must avoid drinking alcohol or grapefruit juice as they might enhance the effect of the drug or lead to unwanted side effects of Revatio. Also, it’s strictly forbidden to take Revatio with other drugs aimed at erectile dysfunction treatment which contain sildenafil, avanafil, tadalafil or vardenafil, as well as medicines with organic nitrates. You should also inform your doctor about all the drugs you are currently taking, especially about:

  • Antifungal medicines;
  • Those used to treat HIV or AIDS;
  • Medicines to treat high blood pressure;
  • Antibiotics;
  • Prostate disorder drugs.

Conclusion

What is Revatio? It’s a powerful prescription PDE-5 inhibitor which is used to treat PAH or erectile dysfunction. It is to be stored at controlled temperature levels (20-25 degrees Celsius) and kept away from children.