77 Ill. Adm. Code 2070.1905
Codeine
Section 2070
Section 2070.1905 Codeine
Not more than 1.8 grams of
codeine, or any of its salts, per 100 milliliters or not more than 90
milligrams per dosage unit, with an equal or greater quantity of an
isoquinoline alkaloid of opium.