Cialis is available in pill form, with a dosage of 5, 10 or 20 mg. The composition of the drug include substances such as Tadalafil and inactive ingredients – croscarmellose sodium, hydroxpropyl cellulose, hypromellose, iron oxide, lactose monohydrate, magnesium stearate, microcrystalline cellulose, sodium lauryl sulfate, talc, titanium dioxide and triacetin. Tadalafil 20mg is used to treat impotence, (erectile dysfunction) in men. It works by inhibiting the PDE5 enzyme, which leads to relaxation of the arteries and better blood flow to the penile chambers; this allows men to obtain stronger erection when stimulated sexually and to keep the erection long enough to complete the sexual act. Unlike the other is two oral ED medications. Take Tadalafil 20 mg as your doctor has advised and do not increase the recommended strength, without speaking to him first. It is common to start on the lower dose, which your healthcare provider might adjust, after evaluating the effect of the medication. Unlike other similar medications, the food and alcohol consumption does not interfere with the effect of the drug, but moderate alcohol consumption is recommended in order to avoid intensifying the strength of the possible side effects. Investigation of it is relaxation of smooth muscles of arteries and inflow of blood to fabrics of penis, what causes erection. Tadalafil does not render an effect in default of sexual stimulation. Tadalafil improves erection and possibility of realization of successful sexual intercourse. Preparation operates during 36. An effect shows up already through 16 mines after the reception of preparation at presence of sexual excitation. Tadalafil at healthy persons does not cause the reliable change of systole and diastole pressure by comparison to a placebo in position lying and upright, and change of ЧСС. Does not influence is on the sharpness of sight, electroretinogram, ophthalmotonus and size of pupil. At application of tadalafil in day’s dose 10 mgs are not educed clinically meaningful influence of preparation on an amount and concentration of sperm, mobility and morphology of spermatozoa. The men of middle age it is recommended to accept preparation in a dose 20 mgs, at least for 16 mines to the supposed sexual activity regardless of eating. Patients can carry out the attempt of sexual intercourse after the reception of preparation in an order to set optimal time of answer for the reception of preparation. Maximal recommended frequency of reception – 1 р/Sothos. For the elderly men of the special selection a dose is not required.