Can humans safely use veterinary HCG, FSH or LH?

[big_boy_1]

Some vet HCGs like MSD Chorulon list their ingredients as HUMAN chorionic gonadotropin.
Chorulon - Overview

Others list EQUINE chorionic gondadotropin.
Equine chorionic gonadotropin - Wikipedia, the free encyclopedia

Are human-CG and equine-CG different chemical sustances?
If so why is MSD using HUMAN-CG for vet use?
AFAIK many bodybuilders have used veterinary Chorulon with no known horror stories, Am I right?

There is also vet FSH available.
Like Follitropin-V. But it contains Porcine Pituitary Follitropin Extract (PPFE) and Follicle Stimulating Hormone (FSH) for Injection. The PPFE doesn't look safe to me.

Follitropin-alpha seems to be designed for human use.
Follitropin Alfa (Subcutaneous Route) Description and Brand Names - Drugs and Supplements - Mayo Clinic
But is FSH any good at all for PCT?
Is it any better than HCG?

Follitropin beta and follitropin alfa are indistinguishable. Two studies showed no difference.
Gonadotropin preparations - Wikipedia, the free encyclopedia

Now what about LH
Evaluation of a commercially available luteinizing hormone test for... - PubMed - NCBI

There are also vet versions of buserelin an analog of FSH and LH