How do prescription and over-the-counter zinc sulfate differ?

Prescription and over-the-counter zinc sulfate products differ in strength and formulation. Prescription zinc sulfate is usually a higher-strength product or a special formulation. Over-the-counter zinc sulfate usually includes lower strengths and simpler formulas. These products are sold in a variety of generic and brand-name forms and are typically considered supplements. Some of the brand names for this zinc supplement include: Orazinc 110, Orazinc 220, Verazinc, Zinc-220, Zincate, Zinca-pak, Mar-Zinc, Zinc CR, Micro-Zn and Zinc 50 mg. Pink.