Erectile dysfunction also known as male impotence is a sexual complication in most men. This complication occurs when the cGMP enzymes in the body gets clogged in the arteries that reaches the male reproductive organ and stops the supply of blood to get hard erections. This is when medicines such as Zenegra 100mg comes in to play with its chemical element sildenafil citrate. Sildenafil citrate releases the phosphodiesterase type 5 (PDE5) inhibitor to remove blockage and supply sufficient blood to the male organ during intercourse. Thus, making a man potent for 4 hours. Zenegra 100mg is a generic version of the branded pill Viagra which is the most trusted and well known in the field of medicine. This medicine is approved by the FDA (Food and Drug Administration) and the WHO (World Health Organization) for its effectiveness and safety. You can buy Zenegra online without prescription as it is easily available over the counter as well. The main benefit of buying online is the low cost and home delivery that leaves you worry free from the hassle of buying manually every time. Also, the online pharmacies provide complete information about the medicine. Dosage of Zenagra 100mg The standard dosage of online Zenegra is 100mg pills that needs to be consumed with the help of water. To allow the components in the medicine to get dissolved and start functioning, this medicine should be consumed at least an hour before intercourse. Zenegra 100mg pills provides hard erections that sustains up to 4 hours in men. Side effects of Zenagra 100mg Zenegra has some mild and some severe side effects that may vary from person to person and their compatibility with the medicine. The causes of side effects may vary; therefore, it is recommended to use this medicine only after reading online and understanding the function to avoid any complication. Mild side effects: Nausea Dizziness Headache Rashes Swelling Diarrhea Blurred vision Severe side effects are as follows: Difficulty in breathing Loss of vision Blood in vomit Prolonged erections If the mild side effects are prolonged and the severe side effects are experienced it is important to rush to the nearest emergency center and consult the doctor for treatment. Precautions of Zenagra 100mg Zenegra 100mg pill is composed of sildenafil citrate, if you are allergic to this element then it is recommended not to use this medicine. Sildenafil citrate is known to increase heart rate, if you have a medical past of cardiovascular disease or kidney problems then use this medicine only after consulting the physician. Online Zenegra 10mg pill should be consumed only once in 24 hours, as over dose of this medicine may prove to be fatal to life. Zenegra 100mg online is meant only form men who are unable to sustain erections during lovemaking, it is not an aphrodisiac or meant for women. Do not consume liquor or drinks that contain alcohol as the medicine may react differently in the body. Do not crush, chew or break Zenegra pill as it may lose its effectiveness.