Active Ingredients:

  • Sildenafil citrate

How does Viagra work and what pharmaceutical group does it belong to?

The active ingredient of Viagra - sildenafil citrate belongs to a group of medicines called PDE5 inhibitors(phosphodiesterase type 5). By blocking this enzyme Viagra increases the amount of NO in the cavernous body of the penis and thus increases blood flow to the penis. Viagra is effective only in the case of sexual excitement.

Which conditions are treated with Viagra?

Viagra is indicated for the treatment of erection disorders that are characterized with inability to achieve and maintain an erection enough for the sexual intercourse.

What should a patient know prior to taking the medication?

Viagra should not be taken in known intolerance of any ingredients of the preparation. Before taking Viagra tablets you should inform your doctor if any of these conditions apply to you:

  • Cardiovascular disease including high or low blood pressure, heart attacks, strokes, arrhythmia
  • Retinitis pigmentosa
  • Sickle cell anemia
  • Blood diseases such as multiple myeloma, leukemia
  • Any penis deformations

Which adverse effects may manifest when using the medication?

The side effects of Viagra include: dyspepsia, headache, flushing, drowsiness, dizziness, infections of the urogenital system, diarrhea, dizziness, skin rash, infections of the respiratory system, joint and back pain, common cold symptoms.

It is not necessary that the side effects will manifest in an individual but the possibility still exist. For more information please consult your health care provider.

Which groups of drugs or specific preparations may interact with Viagra ?

The drug is affected by the following:

  • Nitrates. Viagra should not be taken with nitrates or other nitrogen oxide donors.
  • Calcium channel blockers
  • Beta blockers
  • Certain antibiotics(erythromycin)
  • HIV preparations
  • Antifungal agents

Tell your doctor about all the herbal preparations as well as prescription drugs that you are currently taking even if they are not on the list.

Important information for the patient:

Viagra is supplied for individual use. Do not use it to treat other conditions not listed in the leaflet. Keep the product out of children reach. Do not reuse any disposable materials if supplied with the preparation.