Good Morning,Human Resources can’t ask if you have any physical or mental disabilities. Also, they can’t ask if the you have an alcohol or drug problem, or if you take any medications? The above prohibitions are negated if you explicitly and without solicitation disclose any disability, impairment, drug or medication usage.So it is really up to you what you want to disclose. You also have the right to ask exactly what tests they will be running on any lab work being done.Many do not list their meds and if they come back positive for use of a legal drug you can then provide them with the information. This is truly up to you how you want to handle the issue.Remember, do not eat any poppy seed muffins or anything with poppy seed in it...........if you have mention that up front. Just my 2 cents worth this morning.