Cialis (Tadalafil): Side Effects, Uses, Dosage, Interactions

Erectile Dysfunction. Indicated for treatment of erectile dysfunction (ED) Cialis (or generic equivalent) or Chewtadzy only. PRN use: 10 mg PO initially before sexual activity, with or without food; may be increased to 20 mg or reduced to 5 mg on basis of efficacy and tolerability; in most patients, maximum dosing frequency is once daily Generic Cialis is available in several doses in tablet form: 2.5 mg, 5 mg, 10 mg, and 20 mg. Depending on the dose for ED, you can use it as needed before sexual activity, or you may take 2.5 mg 5mg cialis generic Descriptions. Tadalafil is used to treat men who have erectile dysfunction (also called sexual impotence). Tadalafil belongs to a group of medicines called phosphodiesterase 5 Cialis and generic tadalafil are available in four different strengths 2.5 mg, 5 mg, 10 mg and 20 mg but which one should you take? If you ve never tried Cialis before, your doctor will likely start you on a low dose, like 2.5 mg or 5 mg.

Sildenafil citrate and other PDE5 inhibitors like Cialis and Levitra (vardenafil) all have negative interactions with medications like itraconazole, ketoconazole, and, oddly enough, grapefruit juice. These things affect the CYP3A4 enzyme and may contribute to higher levels of sildenafil in the bloodstream, potentially increasing the risk of In this study we investigated the influence of grapefruit juice, containing inhibitors of intestinal CYP3A4, on the pharmacokinetics of sildenafil and N -desmethylsildenafil. Methods: In a randomized crossover study, 24 healthy white male volunteers received single 50-mg doses of sildenafil. sildenafil and grapefruit Take sildenafil up to 4 hours before you want to have sex. For sildenafil to work properly, you’ll need to be sexually excited. Dosage and strength for pulmonary hypertension. Sildenafil tablets for pulmonary hypertension come in 10mg and 20mg strengths. The usual adult dose is 20mg taken 3 times a day. Sildenafil (Viagra) is a medicine used to treat erectile dysfunction (ED, also called impotence). Sildenafil works by helping to relax the blood vessels in the penis, allowing more blood to flow in and cause an erection. You should take sildenafil about an hour before planned sexual activity, so it has time to work.