Cialis and Tadalafil contain the active ingredient tadalafil and so are medically equivalent. What is Cialis and how does it work? Tadalafil is its active ingredient and is available as a generic drug. Also, each person reacts differently to medication. Removing costly high street premises from the pharmacy business model, Pharmica is able to be highly competitive in the marketplace. It belongs to the drug class known as PDE5 inhibitors. It may be taken with or without food.Tadalafil (Cialis) is available both as brand-name and generic tablets. Common side effects of this medication include headache and indigestion. Tadalafil (Cialis) does interact with some medications, such as heart and blood pressure medications, and taking them together could lead to very low blood pressure and dizziness. Therefore, Medicare Part B prices will increase in The costs will go up from the current $ to $, an increase of nearly $10 a month. Leqembi is a treatment for those in the early Missing: cialis.  · Taking Cialis depends on why you need it. For erectile dysfunction (ED), as needed, start with 10 mg before sexual activity, and your doctor may adjust it to 20 mg or 5 mg. For daily use, take mg daily, possibly increased to 5 mg. 1. If you’re taking Cialis for benign prostatic hyperplasia (BPH), the standard dose is 5 mg taken.