Our medical team can prescribe it online and our pharmacy can mail it to you in 5mg, 10mg and 20mg dose. Avoid combination Voriconazole: May increase the serum concentration of Tadalafil. When tadalafil is used for BPH, erectile dysfunction, or PAH and nitrate administration is medically necessary eg, chest pain refractory to other treatments following the use of tadalafil, at least 48 hours should elapse after the tadalafil dose and nitrate administration. Does Tadalafil make you last longer? Peptic ulcer disease: Use with caution in patients with active peptic ulcer disease because of effect on platelets bleeding ; safety and efficacy have not been established. The recommended dose for as-needed Cialis is 10 mg and may be adjusted up or down to a maximum of 20 mg. Continue to take tadalafil even if you feel well.Generic Cialis (tadalafil) is available in mg, 5-mg, mg, mg, and mg tablets for daily or as-needed use. Your prescriber will inform you about how often you should take it and the best. Generic Cialis (tadalafil) Daily generic Cialis (tadalafil) Hims: $ per month (5mg) starting at $40 per month (5mg, 10mg, 20mg) starting at $40 per month (mg, 5mg) Roman.  · Descriptions. Tadalafil is used to treat men who have erectile dysfunction (also called sexual impotence). Tadalafil belongs to a group of medicines called .