Wisconsin Statutes

Wis. Stat. § 961.20 (2026)

Schedule IV

✓ current as of July 2026

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961.20961.20 Schedule IV. Unless specifically excepted by state or federal law or regulation or more specifically included in another schedule, the following controlled substances are listed in schedule IV:

961.20(2)(2) Depressants. Any material, compound, mixture or preparation which contains any quantity of any of the following substances having a depressant effect on the central nervous system, including any of their salts, isomers and salts of isomers that are theoretically possible within the specific chemical designation:

961.20(2)(a)(a) Alfaxalone;

961.20(2)(ak)(ak) Alprazolam;

961.20(2)(am)(am) Barbital;

961.20(2)(ap)(ap) Brexanolone;

961.20(2)(ar)(ar) Bromazepam;

961.20(2)(av)(av) Camazepam;

961.20(2)(ax)(ax) Carisoprodol;

961.20(2)(b)(b) Chloral betaine;

961.20(2)(c)(c) Chloral hydrate;

961.20(2)(cd)(cd) Clobazam;

961.20(2)(cg)(cg) Clotiazepam;

961.20(2)(cm)(cm) Chlordiazepoxide;

961.20(2)(cn)(cn) Clonazepam;

961.20(2)(co)(co) Cloxazolam;

961.20(2)(cp)(cp) Clorazepate;

961.20(2)(cpm)(cpm) Daridorexant;

961.20(2)(cq)(cq) Delorazepam;

961.20(2)(cr)(cr) Diazepam;

961.20(2)(cs)(cs) Dichloralphenazone;

961.20(2)(cu)(cu) Estazolam;

961.20(2)(d)(d) Ethchlorvynol;

961.20(2)(e)(e) Ethinamate;

961.20(2)(ed)(ed) Ethyl loflazepate;

961.20(2)(eg)(eg) Fludiazepam;

961.20(2)(ej)(ej) Flunitrazepam;

961.20(2)(em)(em) Flurazepam;

961.20(2)(en)(en) Fospropofol;

961.20(2)(eo)(eo) Halazepam;

961.20(2)(ep)(ep) Haloxazolam;

961.20(2)(eq)(eq) Ketazolam;

961.20(2)(eqm)(eqm) Lemborexant;

961.20(2)(er)(er) Lorazepam;

961.20(2)(es)(es) Loprazolam;

961.20(2)(eu)(eu) Lormetazepam;

961.20(2)(ew)(ew) Mebutamate;

961.20(2)(ey)(ey) Medazepam;

961.20(2)(f)(f) Methohexital;

961.20(2)(g)(g) Meprobamate;

961.20(2)(h)(h) Methylphenobarbital, which is also called mephobarbital;

961.20(2)(hg)(hg) Midazolam;

961.20(2)(hh)(hh) Nimetazepam;

961.20(2)(hj)(hj) Nitrazepam;

961.20(2)(hk)(hk) Nordiazepam;

961.20(2)(hm)(hm) Oxazepam;

961.20(2)(hr)(hr) Oxazolam;

961.20(2)(j)(j) Paraldehyde;

961.20(2)(k)(k) Petrichloral;

961.20(2)(m)(m) Phenobarbital;

961.20(2)(md)(md) Pinazepam;

961.20(2)(mg)(mg) Prazepam;

961.20(2)(mm)(mm) Quazepam;

961.20(2)(mo)(mo) Remimazolam;

961.20(2)(mr)(mr) Suvorexant;

961.20(2)(n)(n) Temazepam;

961.20(2)(ng)(ng) Tetrazepam;

961.20(2)(nm)(nm) Triazolam;

961.20(2)(o)(o) Zaleplon;

961.20(2)(p)(p) Zolpidem;

961.20(2)(q)(q) Zopiclone;

961.20(2)(r)(r) Zuranolone.

961.20(2m)(2m) Stimulants. Any material, compound, mixture, or preparation which contains any quantity of any of the following substances having a stimulant effect on the central nervous system, including any of their salts, isomers and salts of isomers that are theoretically possible within the specific chemical designation:

961.20(2m)(a)(a) Diethylpropion.

961.20(2m)(ad)(ad) Cathine.

961.20(2m)(ag)(ag) N,N-dimethyl-1,2-diphenylethylamine, commonly known as “SPA”.

961.20(2m)(ak)(ak) Ephedrine, if ephedrine is the only active medicinal ingredient or if there are only therapeutically insignificant quantities of another active medicinal ingredient.

961.20(2m)(ar)(ar) Fencamfamine.

961.20(2m)(at)(at) Fenproporex.

961.20(2m)(bm)(bm) Mazindol.

961.20(2m)(br)(br) Mefenorex.

961.20(2m)(bu)(bu) Modafinil.

961.20(2m)(c)(c) Pemoline, including its organometallic complexes and chelates.

961.20(2m)(d)(d) Phentermine.

961.20(2m)(e)(e) Pipradrol.

961.20(2m)(em)(em) Serdexmethylphenidate.

961.20(2m)(f)(f) Sibutramine.

961.20(2m)(g)(g) Solriamfetol.

961.20(3)(3) Narcotic drugs containing nonnarcotic active medicinal ingredients. Any compound, mixture or preparation containing any of the following narcotic drugs or their salts, isomers or salts of isomers, in limited quantities as set forth below, calculated as the free anhydrous base or alkaloid, which also contains one or more nonnarcotic, active medicinal ingredients in sufficient proportion to confer upon the compound, mixture or preparation valuable medicinal qualities other than those possessed by the narcotic drug alone:

961.20(3)(a)(a) Not more than 1.0 milligrams of difenoxin and not less than 25 micrograms of atropine sulfate per dosage unit.

961.20(4)(4) Other substances. Any material, compound, mixture or preparation which contains any quantity of any of the following substances or their salts:

961.20(4)(a)(a) Dextropropoxyphene (Alpha-(+)-4-dimethylamino-1, 2-diphenyl-3-methyl-2-propionoxybutane).

961.20(4)(b)(b) Pentazocine, including any of its isomers and salts of isomers.

961.20(4)(c)(c) Butorphanol, including any of its isomers and salts of isomers.

961.20(4)(cm)(cm) Eluxadoline, including any of its isomers, and salts of isomers.

961.20(4)(d)(d) Lorcaserin, including any of its isomers and salts of isomers.

961.20(4)(e)(e) Tramadol, including any of its isomers and salts of isomers.

961.20(5)(5) Exceptions. The controlled substances board may except by rule any compound, mixture or preparation containing any depressant substance included in sub. (2) from the application of all or any part of this chapter if the compound, mixture or preparation contains one or more active medicinal ingredients not having a depressant effect on the central nervous system, and if the admixtures are in combinations, quantity, proportion or concentration that vitiate the potential for abuse of the substances which have a depressant effect on the central nervous system.

961.20 HistoryHistory: 1971 c. 219; 1979 c. 32; 1981 c. 206 ss. 34m, 41 to 52; 1993 a. 468; 1995 a. 448 ss. 203 to 220, 478, 479; Stats. 1995 s. 961.20; 2013 a. 351; 2015 a. 195 s. 83; 2021 a. 239 s. 74; 2025 a. 129; ss. CSB 2.15, 2.19, 2.21, 2.24, 2.25, 2.28, 2.36, 2.38, 2.48, 2.67, 2.74, 2.77, 2.79, 2.82, 2.84, 2.86, 2.93, 2.002, 2.003, 2.004, Wis. adm. code.

961.20 NoteNOTE: See 1979-80 stats. and 1993-94 stats. for notes on actions by the Controlled Substances Board under s. 161.11 (1), 1993 stats.

Notes of Decisions

Cited in 7 cases (1 in the last 5 years), 2008–2026 · leading case: State v. Michael R. Luedtke, 2015 WI 42 (Wis. 2015).

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State v. Michael R. Luedtke, 2015 WI 42 (Wis. 2015). · cites it 4× “Diazepam is listed as a Schedule IV controlled substance under Wis. Stat. § 961.20 (2)(cr). Methadone is listed as a Schedule II controlled substance under Wis.”

State v. Hubbard, 2008 WI 92 (Wis. 2008). · cites it 4× “See Wis. Stat. § 961.20 (2)(a) (Alprazolam). ¶ 7 On January 31, 2005, the State charged Hubbard with one count of injury by intoxicated use of a motor vehicle, contrary to Wis.”

State v. Jacqueline R. Robinson, 2014 WI 35 (Wis. 2014). · cites it 4× “See Wis. Stat. § 961.20 (2)(a)(2009-10). 5 Oxycontin (Oxycondine) is a Schedule II controlled substance.”

State v. Jessica M. Weissinger (Wis. 2015). · cites it 2× “Diazepam is listed as a Schedule IV controlled substance under Wis. Stat. § 961.20 (2)(cr). Methadone is listed as a Schedule II controlled substance under Wis.”

State v. Michael R. Luedtke (Wis. 2015). · cites it 2× “Diazepam is listed as a Schedule IV controlled substance under Wis. Stat. § 961.20 (2)(cr). Methadone is listed as a Schedule II controlled substance under Wis.”

State v. Jose Alfredo Castillo Lira (Wis. Ct. App. 2026). “§ 961.20(4)(e) (2023-24).1 In January 2023, Castillo Lira pled no contest to one count of delivery of a schedule IV drug, and the other counts were dismissed and read in for purposes of sentencing.”

— Wis. Stat. § 961.20(4)(e) — 1 case

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