Viagra is a prescription drug that is used to treat erectile dysfunction (difficulty in getting and maintaining an erection) in men, and in treatment of pulmonary arterial hypertension. For erectile dysfunction, Viagra helps men to obtain and keep an erection. Erectile dysfunction occurs due to lack of blood flow to the penis. It can be due to a physical problem or disease or a side effect of certain medications. Viagra works by increasing blood flow to the penis. After taking Viagra, the arteries which supply the penis increase and fill with blood, allowing a man to achieve an erection and maintain long enough to have sex. Viagra can be taken up to four hours before sex, and is only taken when needed. Viagra should not be taken by women or children.
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You can not take Viagra if you are on certain medications, such as nitrates, guanylate cyclase stimulators, HIV protease inhibitors, certain antibiotics and antifungals. Caution is advised for patients who are also taking anti-hypertensives or alpha blockers. Discuss all medicines you are taking with your doctor before taking Viagra to prevent drug interactions. Viagra contains sildenafil, and is contraindicated in anyone with an allergy to sildenafil.
Side effects of Viagra are rare, but could include priaprism, which is an erection that will not go away for more than four hours. If this occurs, seek medical attention to avoid permanent damage. Other possible side effects could include sudden visual loss, hearing loss, dizziness, ringing in the ears, headache, rashes, or upset stomach.
Viagra is available in 25 mg, 50 mg, and 100 mg strengths. Most patients can take 50 mg approximately one hour before sexual activity, however, may be taken anywhere between 30 minutes to four hours before sex. It usually takes about 30 to 60 minutes to start working, and you must be sexually stimulated to get an erection. After sex, the erection should go away. Viagra can be taken with or without food, but eating a high-fat meal before taking Viagra will increase the time it takes to become effective. Dosage can be increased or decreased based on effectiveness or tolerance, and should not be taken more than once per day. Patients with renal or hepatic impairment should start with the 25 mg dosage.
Viagra can be obtained in Australia at local pharmacies or online with a valid prescription. There are many sites that sell generic versions of Viagra without a prescription, however, caution must be used. It is best to use a edonlinestore.net pharmacy, which will ensure the website you are ordering from is secure and reliable.
To order Viagra online in Australia, you could use an online pharmacy such as edonlinestore.net. Current private prescription price is $11.99 for four 25 mg tablets, $12.99 for four 50 mg tablets, and $13.99 for four 100 mg tablets with a valid Australian prescription. 100 mg tablets run $29.99 for 12, $59.98 for 24, and $110.96 for 48. You may be eligible for a discounted price if you have Medicare. A valid Australian prescription must be sent by post before the medication can be shipped. The medication will be packaged in plain, unmarked boxes for security and privacy.
I am self employed. General Practitioner in Melbourne, VIC. My special interest: male reproductive system.