Final answer:
According to the ASHP, a pharmacist can supervise up to 2 pharmacy interns at a time to ensure adequate supervision and mentoring.
Step-by-step explanation:
According to the American Society of Health-System Pharmacists (ASHP), the number of pharmacy interns a single pharmacist can supervise is limited to 2 at a time.
This restriction is in place to ensure that each intern receives adequate supervision and mentoring.
By limiting the number of interns, the pharmacist can provide individual attention and guidance to each intern, enhancing their learning experience.