Viagra needs to be taken precisely as it was suggested by an accredited physician or medical professional. Never take it in bigger doses or for a longer duration than what the physician recommends. Consumption of Viagra differs according to an individual’s existing erectile dysfunction condition. On top of that, remember that Viagra works only when there is sexual stimulation. 처방전 필요없는 비아그라 This suggests that erection is not possible by simply the simple consumption of the Viagra pill. Do not anticipate an erection if there is no physical stimulation.