Penalty Group 1 consists of:
Allylprodine;
Alphacetylmethadol;
Benzethidine;
Betaprodine;
Clonitazene;
Diampromide;
Diethylthiambutene;
Difenoxin not listed in Penalty Group 3 or 4;
Dimenoxadol;
Dimethylthiambutene;
Dioxaphetyl butyrate;
Dipipanone;
Ethylmethylthiambutene;
Etonitazene;
Etoxeridine;
Furethidine;
Hydroxypethidine;
Ketobemidone;
Levophenacylmorphan;
Meprodine;
Methadol;
Moramide;
Morpheridine;
Noracymethadol;
Norlevorphanol;
Normethadone;
Norpipanone;
Phenadoxone;
Phenampromide;
Phenomorphan;
Phenoperidine;
Piritramide;
Proheptazine;
Properidine;
Propiram;
Tilidine; and
Trimeperidine;
Acetorphine;
Acetyldihydrocodeine;
Benzylmorphine;
Codeine methylbromide;
Codeine-N-Oxide;
Cyprenorphine;
Desomorphine;
Dihydromorphine;
Drotebanol;
Etorphine, except hydrochloride salt;
Heroin;
Hydromorphinol;
Methyldesorphine;
Methyldihydromorphine;
Monoacetylmorphine;
Morphine methylbromide;
Morphine methylsulfonate;
Morphine-N-Oxide;
Myrophine;
Nicocodeine;
Nicomorphine;
Normorphine;
Pholcodine; and
Thebacon;
Codeine not listed in Penalty Group 3 or 4;
Dihydroetorphine;
Ethylmorphine not listed in Penalty Group 3 or 4;
Granulated opium;
Hydrocodone not listed in Penalty Group 3;
Hydromorphone;
Metopon;
Morphine not listed in Penalty Group 3;
Opium extracts;
Opium fluid extracts;
Oripavine;
Oxycodone;
Oxymorphone;
Powdered opium;
Raw opium;
Thebaine; and
Tincture of opium;
Alphaprodine;
Anileridine;
Bezitramide;
Dihydrocodeine not listed in Penalty Group 3 or 4;
Diphenoxylate not listed in Penalty Group 3 or 4;
Isomethadone;
Levomethorphan;
Levorphanol;
Metazocine;
Methadone;
Methadone-Intermediate, 4-cyano-2-dimethylamino- 4, 4-diphenyl butane;
Moramide-Intermediate, 2-methyl-3-morpholino-1, 1-diphenyl-propane-carboxylic acid;
PEPAP (1-(2-phenethyl)-4-phenyl-4- acetoxypiperidine);
Pethidine (Meperidine);
Pethidine-Intermediate-A, 4-cyano-1-methyl-4- phenylpiperidine;
Pethidine-Intermediate-B, ethyl-4- phenylpiperidine-4 carboxylate;
Pethidine-Intermediate-C, 1-methyl-4- phenylpiperidine-4-carboxylic acid;
Phenazocine;
Piminodine;
Racemethorphan; and
Racemorphan;
Tex. Health and Safety Code § 481.102