Cialis vs Viagra: Which is better? Generic versions of tablets like Tadalafil need to be proven to work as well as a brand-name medicine in a lab, before they can be sold. This needs to be given to you by a doctor or qualified pharmacy prescriber after a consultation. Your health information should remain between your provider and yourself. It’s available in 10 mg and 20 mg tablets. ED medications can cause side effects, and it’s crucial to have access to a medical provider if needed. This is healthcare on your terms.Drug details Here are some details about Cialis: Drug form: oral tablet Generic version: tadalafil Read on to learn about Cialis and cost, as well as how to save money on prescriptions and find. Generic Cialis, or Tadalafil, is available in several doses in tablet form: milligrams (mg), 5 mg, 10 mg, and 20 mg. Depending on the dose for ED, you can use it as needed before sexual. Cialis (tadalafil) is an expensive drug used to treat erection problems in men. It may also be used to treat the enlargement of the prostate gland. This drug is slightly more popular than comparable drugs. It is available in both brand and generic versions.