Viagra is a medication used for the treatment of erectile dysfunction in men. It is used in combination with sexual stimulation to help men trigger and maintain an erection. Viagra works by increasing blood flow to specific areas of the body and relaxing the muscles in the walls of blood vessels. It is advised to take Viagra about 30 to 60 minutes before sexual activity, but it can be taken up to four hours prior to sexual activity. Sexual stimulation is typically required in combination with Viagra use in order to produce an erection; the pills will not produce an erection on their own. The results of Viagra typically last two to three hours, but for some men it can be less time or more time. Viagra should not be taken more than once within a 24 hour time period, and it should not be taken in combination with any other erectile dysfunction medications. Viagra is also prescribed under the generic name Sildenafil or branded name Revatio for pulmonary cardiovascular health, and Viagra should not be taken for erectile dysfunction if Sildenafil or Revatio is already prescribed for other health reasons.
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Common side effects for Viagra include headache, flushed skin, indigestion, and stuffy or runny nose. If one experiences dizziness, nausea, and tingling, numbness, or pain in the upper body while using Viagra, stop use and seek emergency help immediately. These symptoms could potentially signify a serious side effect. Other potential serious side effects that necessitate immediate emergency medical care include painful erections or erections lasting longer than four hours, which can potentially damage the penis, and sudden loss of vision. One should stop their use and contact their doctor if they experience ringing in ears, sudden hearing loss, irregular heartbeat, swelling in extremities, seizures or convulsions, shortness of breath, or feeling lightheaded or like you might pass out. The consumption of alcohol or grapefruit while using Viagra can increase the chances for side effects, and should be avoided. Viagra interacts with a number of prescription and over the counter drugs, so it is important that your doctor know all your medication. Common drugs that Viagra interacts with include medications for chest pain, hypertension, prostate concerns, or Human Immunodeficiency Virus, some antibiotics, and some anti fungal medications.
While many pharmacies in Australia require a prescription from a doctor to dispense Viagra, it is available online in its generic form at a number of pharmaceutical websites, without a current prescription. Some sites require that one was previously prescribed Viagra, and have a short questionnaire to fill out, after which a new prescription is granted. Viagra is available online in a variety of doses from 25 milligram tablets to 200 milligram tablets, and it is available up to a year’s supply at a time. Prices range from AU $0.44 per pill to over AU $3 per pill, depending on dosage, site, and quantity purchased. Many sites also offer shipping to other countries. Delivery options vary from site to site and include EMS trackable, AirMail, and Australia Post Express. Some online pharmacies also offer a pickup option for those local to the store.