Viagra (Sildenafil): Uses, Dosage, Safety and Ordering Information

Viagra is a prescription sildenafil product used for erectile dysfunction in appropriate adults. Before obtaining Viagra, confirm the diagnosis, strength, quantity, and clinician-directed plan. The Viagra price varies by pharmacy, coverage, and supply; it must not guide dose changes or unsafe use.

Indications

Common use
The main component of Viagra is Sildenafil Citrate.
Sildenafil Citrate affects the response to sexual stimulation. It acts by enhancing smooth muscle relaxation using nitric oxide, a chemical that is normally released in response to sexual stimulation. This smooth muscle relaxation allows increased blood flow into certain areas of the penis, which leads to an erection.
Sildenafil Citrate is applied for the treatment of erectile dysfunction (impotence) in men and pulmonary arterial hypertension.
Sildenafil Citrate may also be used for other purposes not listed above.

Dosage and direction
Usually the recommended dose is 50 mg. It is taken approximately 0,5-1 hour before sexual activity. Do not take Viagra more then once a day.
A high fat meal may delay the time of the effect of this drug.
Try not to eat grapefruit or drink grapefruit juice while you are being treated with Sildenafil Citrate .

Precautions
Before you start taking Sildenafil Citrate , tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies.
Aged people may be more sensitive to the side effects of the drug.

Contraindications
Viagra is contraindicated in patients taking another medicine to treat impotence or using a nitrate drug for chest pain or heart problems.
This medicine should not be taken by women and children as well as in patients with a known hypersensitivity to any component of the tablet.

Possible side effect
The most common side effects are headache, flushing, heartburn, stomach upset, nasal stuffiness, lightheadedness, dizziness or diarrhea.
A serious allergic reaction to this drug is very rare, but seek immediate medical help if it occurs.
Many people using this medicine do not have serious side effects.
In case you notice any side effects not listed above, contact your doctor or pharmacist.

Drug interaction
This drug should not be used with nitrates and recreational drugs called "poppers" containing amyl or butyl nitrite; alpha-blocker medications; other medications for impotence; high blood pressure medicines, etc.
Consult your doctor or pharmacist for more details.

Missed dose
Viagra is used as needed, so you are unlikely to be on a dosing schedule.

Overdose
If you think you have used too much of this medicine seek emergency medical attention right away. The symptoms of overdose usually include chest pain, nausea, irregular heartbeat, and feeling light-headed or fainting.

Storage
Store your medicines at room temperature between 68-77 degrees F (20-25 degrees C) away from light and moisture. Do not store the drugs in the bathroom. Keep all drugs away from reach of children and pets.

Disclaimer
We provide only general information about medications which does not cover all directions, possible drug integrations, or precautions. Information at the site cannot be used for self-treatment and self-diagnosis. Any specific instructions for a particular patient should be agreed with your health care adviser or doctor in charge of the case. We disclaim reliability of this information and mistakes it could contain. We are not responsible for any direct, indirect, special or other indirect damage as a result of any use of the information on this site and also for consequences of self-treatment.

Dosage

Take sildenafil only as directed by the prescriber and do not use it more than once in 24 hours unless specifically instructed. You can buy Viagra 25 mg, buy Viagra 50 mg, or buy Viagra 100 mg only when the prescribed strength matches the dispensing order. These options are product strengths, not instructions to self-select a dose. The appropriate strength depends on health history, response, concurrent medicines, and adverse effects.

Safety Information

Do not use Viagra with nitrates or nitric-oxide donors, including recreational products known as poppers. The combination can cause a dangerous fall in blood pressure. Tell the prescriber about heart disease, recent stroke or heart attack, low blood pressure, liver or kidney disease, blood disorders, eye disease, and all medicines. Seek urgent help for chest pain, fainting, sudden vision or hearing loss, an erection lasting more than four hours, facial swelling, or breathing difficulty.

Interactions

Important interactions include nitrates, riociguat, alpha-blockers, certain antifungals, macrolide antibiotics, HIV medicines, and other medicines that can lower blood pressure. Grapefruit products can alter sildenafil exposure. A pharmacist should review every prescription, nonprescription medicine, and supplement before treatment.

FAQ

Can I compare the Viagra price between pharmacies? Yes, but compare the same prescribed strength, quantity, and legitimate dispensing service. The Viagra price may differ because of insurance, quantity, pharmacy arrangements, and generic availability.

Can Viagra be used for chest pain? No. It must never be used with nitrate treatment for angina.

Does a higher dose work better? Not necessarily. The prescriber chooses the safest effective strength; taking more increases risk without guaranteeing better results.

Disclaimer

This page provides general educational information and does not replace individualized medical advice, official product labeling, or pharmacist counseling. Seek emergency care for severe symptoms and consult a qualified healthcare professional about treatment decisions.