Cialis is the brand name of the drug Tadalafil.
Cialis is the brand name of the drug Tadalafil, which belongs to the group of medications used to treat Erectile Dysfunction (ED), also commonly known as “the bird won’t sing.”
This drug works by relaxing the muscles of blood vessels and increasing blood flow to the genital area, resulting in improved erectile function. It is also used to treat symptoms of an enlarged prostate.
How many sizes does Cialis come in? And what are the differences?
In Thailand, Cialis is prescribed by doctors in two main dosages:
- Cialis 20 milligrams
- Cialis 5 milligrams
The difference is not just the “number” but also relates to the “method of use” and the “treatment purpose.”
How to use this medicine?
- To treat enlarged prostate symptoms, take this medication as prescribed by your doctor, usually one tablet daily continuously until symptoms improve.
- To treat Erectile Dysfunction (ED), the doctor will assess the patient’s condition before prescribing the most appropriate dosage, divided into two methods as follows:
- The first method is to take the medicine only when sexual activity is desired. Generally, a 20mg dose is taken at least 30 minutes before sexual activity. The effect of tadalafil on sexual performance can last up to 36 hours.
- The second method is to take 5mg tadalafil daily, once a day. Sexual activity can occur at any time during the course of treatment.
***This medication is a special controlled drug and can only be prescribed by a doctor.***
Note: Beware of counterfeit drugs sold online. To avoid being scammed, consult a doctor at any time.








