This type is best if you do not plan to have sex regularly, but want to have the medication on hand. Read more on male sexual health on the Sexual Health Australia site. Cialis As Needed will be prescribed in doses of 5 to 20 mg. Taking more than 1 dose every 24 hours can cause heart issues and other problems. To prevent stomach problems, have a small meal before or after you take Cialis. Resources and support See the Healthy Male site for more information about erectile dysfunction and its treatment. Consume Cialis orally with water.About tadalafil Brand names: Cialis, Adcirca. About tadalafil. Tadalafil is a medicine used to treat erection problems (erectile dysfunction) and symptoms of an enlarged prostate (benign prostate enlargement). It’s also sometimes used to treat pulmonary hypertension (high blood pressure in the blood vessels that supply the lungs). CIALIS for once daily use is a lower dose you take every day. • Do not take CIALIS more than one time each day. • Take one CIALIS tablet every day at about the same time of day. You may attempt sexual activity at any time between doses. • If you miss a dose, you may take it when you remember but do not take more than one dose per day. Dosage range: mg to 5 mg. Frequency: once daily, regardless of the timing of sexual activity. Cialis’s recommended dosage when it’s taken as needed for ED is as follows. Dosage range: 5 mg to 20 mg. Frequency: one dose at least 30 minutes before sexual activity, with a maximum of one dose per day*.