We prescribe 3 different doses: 5mg, 10mg and 20mg. The starting dose we generally recommend is the 10mg pill. Most men start with and respond well to the 10 mg tadalafil .Do not take a double dose to make up for a missed one. If you have certain health conditions or are taking certain medications, your doctor may tell you to take tadalafil less often or may prescribe a lower dose to be taken once a day. If you take nitrates in any form, or are on treatment for pulmonary hypertension , you should not take tadalafil. Your doctor will probably tell you not to take tadalafil if you are taking nitrates. The safety and effectiveness of Cialis when used with other treatments for impotence has not been studied.Tadalafil is a medicine used to treat erectile dysfunction (ED, also called impotence) and problems with urination caused by an enlarged prostate (benign prostatic hypertrophy or BPH). It is sometimes known by its generic name tadalafil, and sometimes known by its trade name, Cialis. There are also other brands of this medicine available. MNT ‘s review. Lemonaid sells Cialis in these forms: Cialis: available in doses of 5, 10, and 20 mg, starting at $65 per tablet. Daily Cialis: 5 mg tablet with pricing starting from $50 per tablet. We prescribe 3 different doses: 5mg, 10mg and 20mg. The starting dose we generally recommend is the 10mg pill. Most men start with and respond well to the 10 mg tadalafil .Cialis is not recommended for people taking any form of nitroglycerin because the combination may lower blood pressure to an unsafe level. Check the return and refund policies. Always keep medications out of reach of children and pets. Tadalafil does not prevent pregnancy or the spread of sexually transmitted diseases such as human immunodeficiency virus HIV. See our source here What is Tadalafil?