Sildenafil Price

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Main information about Sildenafil
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Compare Sildenafil Price

Dosage Package Price per pill, $ Price, $ Buy
Original 100mgX4 4 7.25 29.00
Original 100mgX8 8 6.62 52.96
Jelly 100mgX10 10 5.00 50.00
Jelly 100mgX20 20 4.00 80.00

How to buy Sildenafil

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Sildenafil No Prescription

Sildenafil is prescribed for the treatment of erectile dysfunction.
Sildenafil is prescribed to treat erectile dysfunction (impotence; inability to get or keep an erection) in men. Sildenafil (Revatio) is prescribed to improve the ability to exercise in people with pulmonary arterial hypertension (PAH; high blood pressure in the vessels carrying blood to the lungs, causing shortness of breath, dizziness, and tiredness). Sildenafil is in a class of prescriptions called phosphodiesterase (PDE) inhibitors. Sildenafil treats erectile dysfunction by increasing blood flow to the penis during sexual stimulation. This increased blood flow can cause an erection. Sildenafil treats PAH by relaxing the blood vessels in the lungs to allow blood to flow easily.

If you are taking sildenafil to treat erectile dysfunction, you should know that it does not cure erectile dysfunction or increase sexual desire. Sildenafil does not prevent pregnancy or the spread of sexually transmitted diseases such as human immunodeficiency virus (HIV).

Sildenafil (in citrate form), sold under the names Sildenafil, Revatio and under various other names, is a drug used to treat male erectile dysfunction (impotence) and pulmonary arterial hypertension (PAH), developed by the pharmaceutical company Pfizer. Its primary competitors on the market are tadalafil, and vardenafil.

Sildenafil Contraindications

Consistent with its known effects on the nitric oxide/cGMP pathway , sildenafil citrate was shown to potentiate the hypotensive effects of nitrates, and its administration to patients who are using organic nitrates either regularly and/or intermittently in any form is therefore contraindicated.
After patients have taken sildenafil citrate, it is unknown when nitrates, if necessary, can be safely administered. Based on the pharmacokinetic profile of a single 100 mg oral dose given to healthy normal volunteers, the plasma levels of sildenafil at 24 hours post dose are approximately 2 ng/mL (compared to peak plasma levels of approximately 440 ng/mL). In the following patients: age >65, hepatic impairment (e.g., cirrhosis), severe renal impairment (e.g., creatine clearance <30 mL/min), and concomitant use of potent cytochrome P450 3A4 inhibitors (erythromycin), plasma levels of sildenafil at 24 hours post dose have been found to be 3 to 8 times higher than those seen in healthy volunteers. Although plasma levels of sildenafil at 24 hours post dose are much lower than at peak concentration, it is unknown whether nitrates can be safely coadministered at this time point.
Sildenafil citrate is contraindicated in patients with a known hypersensitivity to any component of the tablet.

Sildenafil Without a Prescription

Sildenafil comes as a tablet to take by mouth.

If you are taking sildenafil to treat erectile dysfunction, follow your doctor's directions and the guidelines in this paragraph. Take sildenafil as needed before sexual activity. The best time to take sildenafil is about 1 hour before sexual activity, but you can take the prescription any time from 4 hours to 30 minutes before sexual activity. Sildenafil usually should not be taken more than once every 24 hours. If you have certain health conditions or are taking certain prescriptions, your doctor may tell you to take sildenafil less often. You can take sildenafil with or without food. However, if you take sildenafil with a high-fat meal, it will take longer for the prescription to start to work.

If you are taking sildenafil to treat PAH, follow your doctor's directions and the guidelines in this paragraph. You will probably take sildenafil three times a day with or without food. Take sildenafil at around the same times every day, and space your doses about 4 to 6 hours apart.

If you are taking sildenafil for erectile dysfunction, your doctor will probably start you on an average dose of sildenafil and increase or decrease your dose depending on your response to the prescription. Tell your doctor if sildenafil is not working well or if you are experiencing side effects.

If you are taking sildenafil for PAH, you should know that sildenafil controls PAH but does not cure it.

Sildenafil is used to treat male erectile dysfunction (impotence) and pulmonary arterial hypertension (PAH). Part of the physiological process of erection involves the release of nitric oxide (NO) in the corpus cavernosum. This then activates the enzyme guanylate cyclase which results in increased levels of cyclic guanosine monophosphate (cGMP), leading to smooth muscle relaxation in the corpus cavernosum, resulting in increased inflow of blood and an erection. Sildenafil is a potent and selective inhibitor of cGMP specific phosphodiesterase type 5 (PDE5) which is responsible for degradation of cGMP in the corpus cavernosum. This means that, with Sildenafil on board, normal sexual stimulation leads to increased levels of cGMP in the corpus cavernosum which leads to better erections. Without sexual stimulation and no activation of the NO/cGMP system, Sildenafil should not cause an erection.

Sildenafil Side Effects

Sildenafil side effects that you should report to your health care professional or doctor as soon as possible:
- blurred vision;
- changes in color vision (seeing a blue tinge on objects or having difficulty telling the difference between blue and green);
- chest pain;
- diarrhea;
- difficulty falling asleep or staying asleep;
- dizziness or lightheadedness;
- erection that is painful or lasts longer than 4 hours;
- fainting;
- flushing (feeling of warmth);
- headache;
- heartburn;
- itching or burning during urination;
- muscle aches;
- nosebleeds;
- numbness, burning, or tingling in the arms, hands, feet, or legs;
- rash;
- ringing in ears;
- sensitivity to light;
- sudden decrease or loss of hearing;
- sudden severe loss of vision (see below for more information);
- worsening shortness of breath;
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