UTHSCSA Hiring Process

I was curious if anyone knows what the hiring process is for a research job or really any job at UTHSCSA? I take a couple medications that I would need to report for a drug test but I don’t like the idea of having to disclose my medical issues to HR- especially bc I always decline to answer disability stuff on employment applications. (Embarrassment, not wanting to be turned down, not wanting people to think less of me, etc.) Any insight to how long it takes and what the process looks like would be greatly appreciated. I’ve never had to disclose this to an employer before so i’m really anxious about accepting an interview