Sildalis 100 (Sildenafil Citrate) acts on a specific enzyme called phosphodiesterase type five (PDE5). PDE5 is inhibited with the oral administration of this generic medicine, which permits the body to enhance the levels of cyclic Guanosine Monophosphate and Nitric Oxide that help augment the blood flow in the penile arteries. This helps men attain and sustain an erection for a longer duration. Usually, a dose of 50 mg or 100 mg is enough to provide the desired effect, which is to be taken only when needed, 30 minutes before sexual activity, but not more than once in 24 hours. Overdose or haphazard use of this generic medicine may produce unwanted symptoms, so have a talk with your doctor and use Sildalis. Mild giddiness is expected when under the influence of this drug, so avoid outdoor activities soon after taking the pill. Sildalis is not for children, women, and men under 18 years of age. Also, it is not advisable for men to take nitrates or alpha-blockers, because if you take these drugs with Sildenafil Citrate, you may experience a severe fall down in your blood pressure that could lead to medical complications.