Viagra had first been used as a proper medication during the s. Tell your doctor or pharmacist if you are taking nitrates medications for chest pain such as isosorbide dinitrate Isordil , isosorbide mononitrate Monoket , and nitroglycerin Nitromist, Nitro-Dur, Nitrostat. The mean times adjusted for baseline to onset of limiting angina were Sildenafil comes as a tablet and suspension liquid to take by mouth. If you experience chest pain, dizziness, or nausea during sex, seek immediate medical help. This medicine has been approved in the United States to treat premenopausal females who have low sexual desire.Viagra or Kamagra – Vietnam Forum. Asia ; Vietnam ; Vietnam Travel Forum; Search. Browse all , Vietnam topics» Viagra or Kamagra Watch this Topic. According to price-comparison site test1.ru, generic Revatio will cost you as little as $ per pill, depending on where you fill your prescription. That’s compared with more than $50 per. Stick to the Indian version of Viagra, sold in Vietnam as Kamagra,as good as the original, I know dozens of people who have been using it for years with “success” and without any .