
Viagra typically begins to take effect within about 30 to 60 minutes after taking it, but this may vary depending on individual physiology, diet, and other factors. It is recommended to take it about one hour before sexual activity for best results. Be sure to follow your doctor’s instructions.
Daily use is not recommended. This is a medication taken as needed; it is generally recommended to take it no more than once a day (standard dose: 100 mg), with at least 24 hours between doses. Excessive or frequent use may increase the risk of side effects such as headaches and flushing. Please consult your doctor for proper dosage recommendations.
You should avoid high-fat diets and heavy drinking. High-fat foods can interfere with the absorption of medication in the gastrointestinal tract, affecting how quickly it takes effect; excessive alcohol consumption can also cause excessive vasodilation, which may impair erectile function in men and exacerbate side effects such as dizziness or low blood pressure.
Yes. The price of Viagra in Hong Kong at EDD Health includes genuine 100mg Viagra tablets, as well as an online prescription and consultation with a licensed Western physician. The doctor will assess your health condition and issue a legal prescription. The entire process is safe, compliant, and free of hidden fees, and we provide express, confidential door-to-door delivery.
由於此藥物會顯著擴張血管並影響血壓,以下人士絕對不可食用,否則可能引致嚴重副作用甚至危及生命:<br> 正服用硝酸鹽類藥物(Nitrates):包括心絞痛患者常備的「脷底丸」(如硝酸甘油 Nitroglycerin)或皮膚貼劑。威而鋼與此類藥物會產生致命性的交互作用,引致血壓急速暴跌。<br> 患嚴重心血管疾病:包括過去 6 個月內曾患急性心肌梗塞(心臟病發)、中風、或患有不穩定性心絞痛、嚴重自律神經失調及重度心衰竭者。 <br>重度肝功能或腎功能不全:因身體無法正常代謝藥物成分,容易造成藥物在體內過度積聚,引發危險。<br> 患低血壓或嚴重未控制的高血壓:血壓常年低於 90/50 mmHg,或血壓高於 170/100 mmHg 且藥物控制不良者。 <br>患有視網膜遺傳疾病:例如視網膜色素變性(Retinitis Pigmentosa),此藥物可能影響視覺神經的磷酸二酯酶(PDE),增加視力受損風險。