<qa>  What is the name of the medication that is used to treat patients requiring HD?24. Concomitant use of or treatment with any prescription drugs, herbal products, vitamins, minerals, and over-the-counter medications within 14 days prior to Check in Day -1 and during the study. Exceptions may be made on a case by case basis following discussion and agreement between the Investigator and the Sponsor. Patients requiring HD Part 2 may continue to receive routine medications including vitamins, antidepressants, antihypertensive, and low dose aspirin to maintain their stable medication regimen. 