C.__"Retailer" means a person or business entity engaged in this State in the business of selling products to the general public on a retail basis.

D.__"Sale" or "sold" includes barter, exchange, transfer or gift.

2.__Restrictions on packaging.__The retail sale of a targeted methamphetamine precursor is limited to:

A.__Sales in packages containing not more than a total of 3 grams of one or more targeted methamphetamine precursors; and

B.__Sales in blister packs, each blister containing not more than 2 dosage units, or when the use of blister packs is technically infeasible, sales in single-dose packets or pouches.

3.__Restrictions on amount of sale.__A person or retailer may not sell more than 3 packages of a targeted methamphetamine precursor per transaction.

4.__Restrictions on place of sale; storage.__Any product containing any amount of a targeted methamphetamine precursor may be sold only by a licensed pharmacist or a registered pharmacy technician and must be stored in a location that is locked or otherwise not accessible by customers.

5.__Exceptions.__Exceptions to this section are as follows.

A.__This section does not apply to:

(1)__Any targeted methamphetamine precursor that is obtained by a prescription; and

(2)__The sale or transfer of a targeted methamphetamine precursor to a veterinarian, physician, pharmacist, retail distributor, wholesaler, manufacturer, warehouse operator or common carrier or an agent of any of these in the regular course of lawful business activities.