Good morning
Your instinct is on point, oral HCG is not an effective medication
HCG does not absorb well via sublingual administration. In addition, the peptide itself is very fragile and will not preserve well in an oral solution. By the time the HCG is administered there will be significant degrading of the peptide.
When I worked at APS Pharmacy we experimented with sublingual HCG and Sermorelin under the guidance of Dr Richard Walker. First and foremost, both HCG and Sermorelin must still be Lyophilized in order to preserve it. Just like the injectable form, a separate diluent must be added. The diluent was customized to allow for the best preservation and absorbability once mixed, however the shelf-life was still determined to be no more than 30 days.
Even when all the proper steps are taken to preserve the HCG for oral application the actual absorption remains very low to non existant. In theory, you would have to take a lot of sublingual HCG to get enough to absorb to be effective. Most "oral HCG" marketed is not properly Lyophilized and therefore is no good. It is a marketing scheme meant to benefit from the completely inaccurate "HCG weightloss" hype that is created by marketers that have nothing to do with medicine.
A trained physician can monitor your HCG use to prevent any side effects. The injectable
HCG dosage used in proper TRT is not high enough to cause any issues with Leydig cell response. 2000iu per week is not too high, especially if the total dosage is split into more frequent injections. That dosage does not matter as your dr intends on you taking it orally. The typical dosage of HCG prescribed by many TRT doctors is between 200iu-500iu INJECTED two or more days per week. Variations of this protocol exist depending on the doctor, but bottom line is you want someone who is properly trained.