If he had some infection in his vital organ, this prescription of "Inva-F"seems legitimate. If he has the disorder, he needs to be protected to have sex. So its legitimate only if his vital organ has some infection.

I am not sure why 3 different antibiotic was prescribed. I hope, he doesnot have any serious illness to have all those at same time. There are some serious condition when you are given multiple antibiotic to cover broad spectrum bacteria, for exam ple in case of Tubercolorosis (TB).

However, I am not advocating that this man is right, It sounds fake, when you get money for all the bill you show to the secreteriat.