1. a. Except as provided in subsection d. of this section, no person shall sell, offer for sale or purchase in any single retail transaction more than:
(1) three packages, or any number of packages that contain a total of nine grams, of any drug containing a sole active ingredient of ephedrine, pseudoephedrine, phenylpropanolamine, or any of their salts, optical isomers or salts of optical isomers, or
(2) three packages of any combination drug containing, as one of its active ingredients, ephedrine, pseudoephedrine, phenylpropanolamine, or any of their salts, optical isomers or salts of optical isomers, or any number of packages of such combination drug that contain a total of nine grams of ephedrine, pseudoephedrine, phenylpropanolamine, or any of their salts, optical isomers or salts of optical isomers.
b. As used in this section, "drug" has the meaning as defined in R.S.24:1-1.
c. A violation of this section is a disorderly persons offense.
d. This act shall not apply to a drug lawfully prescribed or administered by a licensed physician, veterinarian or dentist.