Sildenafil may not be safe to take for people with certain medical conditions including: a past history of stroke or heart attack in the last 6 months retinitis pigmentosa an eye disease It can also interact with many other medicines, particularly nitrates used in heart disease , amyl nitrite and blood pressure medicines. Do I need a prescription? Virginia Star In the case of Viagra in NZ, there has been a modest increase in use; men have described the easier access as helpful; and some have been referred on, typically for heart health and diabetes check-ups. His organisation aims to rebalance the risk equation in Australia with more emphasis on the benefits. You can buy these medicines from a store-based pharmacy or reputable online pharmacy with a prescription. Resources and support The Healthy Male site has more information about erectile dysfunction and other sexual health issues for males.Erectile dysfunction means not being able to obtain or keep an erection sufficient for sexual intercourse. Many people have erectile dysfunction at some time in their lives. It can . Is there an over-the-counter Viagra? Viagra is only available with a prescription in the United States, Canada, and most other countries. Viagra is sold under the generic name . Making Viagra available over the counter in Australia would be reasonable and safe if pharmacists are given adequate training and take appropriate steps before deciding to .