HCG hormone is not urine, well, not literally. Yes, it is derived that the HCG hormone is derived from the urine of pregnant women but when we are talking about HCG drops or injections, you are not using the urine itself.
I read it on a website where they had mentioned the exact scientific process.
“Urine from 2-3 months of pregnant women are obtained. HCG was extracted by precipitation with acetone at the ratio of 1 part urine and 2 parts of acetone. It is shaken for 10 minutes kept at 4°C and the clear solution is poured out.
The precipitable part is then collected by centrifuge at 4,000 rpm for 10 min and then filtered through Whitman No.41. The crude HCG is then freeze-dried for 20 hours. HCG was kept in a vial with 0.01 gm/vial. The concentration of HCG is then measured by Double Antibody Quantitative HCG Radioimmunoassay.”
This process was initially done at Rajavidhi Hospital during December 1986 to July 1987.