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Viagra | Sildenafil Citrate

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Starting from $0.62

Quick Overview

Viagra is used to treat erectile dysfunction in case of male. This medicine contains sildenafil citrate as active ingredient. It enhances the natural process of erection by relaxing the smooth muscles of penis and dilating the arteries of pelvic. The dilated arteries are filled with blood, corpus cavernosa get engorged and thus the penis becomes erect.


This medicine should be taken orally with food or without food. The patient should take this medicine 20 minutes before physical intercourse. 

Quantity Strength Price Unit Price
40 Tablets Viagra 50 - Generic Sildenafil Citrate 50mg $29.00 $0.73
60 Tablets Viagra 50 - Generic Sildenafil Citrate 50mg $39.00 $0.65
100 Tablets Viagra 50 - Generic Sildenafil Citrate 50mg $75.00 $0.75
40 Tablets Viagra 100 - Generic Sildenafil 100mg $29.00 $0.73
60 Tablets Viagra 100 - Generic Sildenafil 100mg $39.00 $0.65
100 Tablets Viagra 100 - Generic Sildenafil 100mg $65.00 $0.65
120 Tablets Viagra 100 - Generic Sildenafil Citrate 100mg $79.00 $0.66
240 Tablets Viagra 100 - Generic Sildenafil Citrate 100mg $149.00 $0.62

Viagra is an effective medicine that is used for treating erectile dysfunction. It functions by blocking the enzyme phosphodiesterase in the body. The medicine shows its best result when used in combination with sexual stimulation. It allow the flow of blood to the penis that is essential for maintain erection.

It does not provide any protection from any sexually transmitted disease such as HIV, syphilis, etc.

Furthermore, Sildenafil is also used to treat high blood pressure in lungs, a condition known as pulmonary arterial hypertension.

During sexual simulation, nitric oxide is produced in the penis that is responsible for acting the enzyme guanylate cyclase. This enzyme produces a natural chemical cyclic guanosine monophosphate (cGMP). cGMP is mainly responsible for causing erection. The blood vessel is responsible for delivering and removing the blood in the penis.

Sildenafil inhibits the enzyme phosphodiesterase-5 that destroys cGMP and allows it to accumulate and persist for long time. Longer persistence of cGMP results in prolonged engorgement of the penis.

 

Chemically, sildenafil citrate is designated as 1-[[3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-methylpiperazine citrate.

This appears as white to off-white coloured crystalline powder and has a molecular weight of 666.7.

 

Viagra or generic Sildenafil is film-coated blue coloured tablet that appears as round-diamond in shape. The medicine contains various inactive ingredients such as microcrystalline cellulose, croscarmellose sodium, magnesium stearate, anhydrous dibasic calcium phosphate, hypromellose, titanium dioxide, lactose, triacetin, etc.      

 

The tablet of Viagra should be stored at 25 degree centigrade and is protected from light and moisture. The patient should not miss their dose for better and effective result. This medicine should not be taken in excess amount as the overdose might lead to serious health issues. 


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Generic Sildenafil citrate should be given 50 mg to the patient. This medicine should be taken one hour prior physical intercourse.

Based on the drug tolerance power and requirement of the patient, this dose can be increased to 100 mg or decreased to 5 mg. The patient should take only one dose in a day. Taking more medicine might lead to serious health problem due to the overdose of the medicine. 

The patient might suffer from side effect such as:

  • Headache
  • Upset stomach
  • Diarrhoea
  • Redness of face/neck/chest
  • Painful erection
  • Erection that last for more than 4 hours
  • Allergic reaction such as hives, difficulty in breathing, etc.
  • Vision change
  • Sudden loss of vision
  • Ringing in the ears
  • Hearing loss
  • Pain in chest
  • Irregular heartbeat
  • Swelling in the ankles
  • The patient should not use Viagra if they are allergic to sildenafil.

 

  • In case the patient is taking any nitrate medicine, then they should not take Viagra. Taking such medicine might result in lowering of blood pressure.

 

  • If the patient has any bleeding disorder, haemophilia, stomach ulcer, retinitis pigmentosa, physical deformity of penis such as Peyronie’s disease, then they should tell to the doctor before taking Viagra medicine.

 

  • The patient should tell to the doctor if they are suffering from heart disease, coronary artery disease or have a recent heart attack in the past 6 month, stroke or congestive heart failure.

 

  • The patient, if taking any prescription, non-prescription or drugs or herbal products, then they need to tell to the doctor.

 

  • In case, the user of Viagra is suffering from high or low blood pressure, disease related to liver or kidney, blood cell disorder such as sickle cell anaemia, multiple myeloma or leukaemia, then they should reveal to the doctor prior taking this medicine.