Buy Viagra 25mg – Without Prescription – CVS Online Store
Viagra (sildenafil) relaxes muscles found in the walls of blood vessels and increases blood flow to particular areas of the body.
Viagra is used to treat erectile dysfunction (impotence) in men and woman. Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women.
Do not take Viagra while also taking Revatio, unless your doctor tells you to.
Viagra Minor Side Effects
Some sildenafil side effects may not need any medical attention. As your body gets used to the medicine these side effects may disappear. Your health care professional may be able to help you prevent or reduce these side effects, but do check with them if any of the following side effects continue, or if you are concerned about them:
More common:
- Aches or pains in the muscles
- bloody nose
- diarrhea
- difficult or labored breathing
- flushing
- headache
- pain or tenderness around the eyes and cheekbones
- redness of the skin
- sneezing
- stomach discomfort following meals
- stuffy or runny nose
- trouble sleeping
- unusually warm skin
How it works
- Viagra is a brand (trade) name for the drug sildenafil. Sildenafil blocks the action of an enzyme known as cGMP-specific phosphodiesterase type-5 (PDE-5). This enzyme breaks down cGMP, a substance that induces smooth muscles to relax. Blocking PDE-5 means increased levels of cGMP within the smooth muscles which promotes muscle relaxation and vasodilation (a widening of blood vessels).
- High levels of PDE-5 are found in the penis, lungs, and retina. PDE-5 is also found throughout the body within the smooth muscle cells of blood vessels and muscles.
- Viagra belongs to the class of medicines known as PDE-5 inhibitors.
Additional information
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