비아그라에 대해 알아야 할 고려 사항
Having sildenafil together with nitrates or nitroglycerin (normally prescribed for heart problems) can cause a critical fall in blood pressure that may be perhaps deadly.For seniors: The kidneys, liver, or coronary heart of older Grownups might not do the job in addition to they accustomed to. This might cause Your system to system prescription dru