No medicines, nutritional supplements, or other chemicals alter the reliability of HIV tests or the time to a positive result. There are theoretical concerns about potent cancer chemotherapy and powerful immunusuppressive drugs, but even for these I stress "theoretical". There are few if any reports that even these had any such effect. Certainly there is no concern in this regard about immunocal or glutathione. (I think you're wasting your money on quackery. But that's off topic for this forum, so we'll leave it there.)
I hope this helps. Best wishes-- HHH, MD
Thank you for the clarification and the insights.