Sildenafil

Effective Sildenafil Viagra Man Sex Enhancement Powder Sildenafil Citrate CAS 139755-83-2

Quick detail

Product Name	Sildenafil Citrate
Chemical Name	Sildenafil; Viagra
CAS Number	171599-83-0
Molecular Formula	C28H38N6O11S
Molecular Weight	666.7
Molecular structure
Melting Point	187-189°C
Purity	99.5%

Description

Viagra (Sildenafil citrate) is a drug used to treat erectile dysfunction (impotence) in males and pulmonary arterial hypertension (PAH).

Viagra Action

Viagra treats erectile dys function and works by relaxing muscles and increases blood flow to particular areas of the body (in this case, the penis, specifically). Its effects last up to four hours. The most common side effects of Viagra are headache, facial flushing, and upset stomach. Rarely, blurred vision, or sensitivity to light may briefly occur.

As well as treating impotence, Sildenafil Citrate can also be effective in treating Pulmonary Arterial Hypertension (PAH). Similarly to how it acts to relax muscles of the penis, it relaxes arterial walls; therefore, reducing resistance and pressure in the arteries.

Sildenafil Citrate is solely active in relaxing muscles and increasing blood flow to the heart, lungs and penis due to PDE-5, yet vasodilation is not increased in other parts of the body.

Viagra Instructions

Take Viagra exactly as it was prescribed for you. Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended.

Viagra is usually taken only when needed, 30 minutes to 1 hour before sexual activity. You may take it up to 4 hours before sexual activity. Do not take Viagra more than once per day.Viagra can help you have an erection when sexual stimulation occurs. An erection will not occur just by taking a pill. Follow your doctor's instructions.

During sexual activity, if you become dizzy or nauseated, or have pain, numbness, or tingling in your chest, arms, neck, or jaw, stop and call your doctor right away. You could be having a serious side effect of Viagra.

Dosage

Erectile Dysfunction ( Viagra only)

Adults

PO 50 mg once, 0.5 to 4 h prior to sexual activity. Titration to a 25 or a 100 mg dose may be used based on tolerability or efficacy. The max recommended dosage is 100 mg per day and max recommended frequency is once daily.

Dosage Adjustments ( Viagra only)

Adults

PO Consider a starting dose of 25 mg in patients older than 65 yr of age, or in patients with hepatic impairment, severe renal impairment, or concurrent use of potent CYP3A4 inhibitors (eg, erythromycin, itraconazole, ketoconazole, saquinavir).

Alpha-blockers

Patients should be on stable alpha-blocker therapy prior to initiating treatment and should be initiated on sildenafil at the lowest dose.

Protease inhibitors

Do not exceed a max single dose of sildenafil 25 mg in a 48-h period.

Pulmonary Arterial Hypertension ( Revatio only)
Adults

PO 20 mg 3 times daily. IV 10 mg (12.5 mL) administered as a bolus injection 3 times daily.

COA

Sex enhancement hormone