Viagra pills are a branded formulation of the drug sildenafil. Sildenafil is the primary one of three in a class of drug called PDE5 inhibitors. The other two are tadalafil and levitra. These drugs are used primarily in the treatment of erectile disfunction in men. Erectile disfunction describes a condition where a man is unable to obtain or maintain an erection either firm enough or for long enough to participate in and complete sexual intercourse.
Viagra pills work by relaxing the blood vessels in the surrounding tissues to allow for increased blood flow. It is the increased flow of blood which enables the man to then obtain an erection. Sexual arousal does however need to be present as well for the required physical triggers in the body. There can be many causes of erectile disfunction but, because of its relatively simple physiological process, Viagra is effective in most cases whatever the underlying cause.
Viagra pills are small diamond shaped tablets which are taken orally with water between thirty minutes and one hour before sexual activity is planned. The effect can last up to 4 hours so there is a reasonable time period of opportunity for you and your partner to be in the right mood and right place. The usual dose is 100mg but there is also a low dose of 50mg. Viagra should not be used more than once in any 24 hour period. It is highly preferential to obtain Viagra under medical supervision in the first instance where a doctor can consider your symptoms and any suitability issues. For example extra care would be required for patients with chest or heart conditions where these are being treated with nitrate preparations as these do not react well with Viagra in some cases. A dangerously low blood pressure can be the unwelcome result.
In most cases however, adverse side effects from taking Viagra pills are relatively rare. The most serious would be an allergic reaction where the mouth and airways swell and breathing can be affected or a heart problem. In both these cases immediate medical intervention should be sought. More minor side effects include dizziness , nausea, some abdominal or back pain, headaches and flushing. These are generally short-lived and are associated with the increased blood flow.
Viagra pills are widely available either on prescription from a medical practitioner or from a wide range of mail order and inline suppliers. Care should be taken to choose a reputable source of supply. The drug is not costly and you can expect to pay less than $1 per dose in Australia.
I am self employed. General Practitioner in Melbourne, VIC. My special interest: male reproductive system.