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Drugs (controlled Substances)
RSMo 195.010effective 12 Nov 2026

Definitions

In plain English

This section gives the official definitions for words used in Missouri's drug laws. It explains what terms like 'controlled substance,' 'marijuana,' 'addict,' 'drug paraphernalia,' and many others mean when used in these laws. These definitions set the rules for how the rest of the drug laws are understood and applied.

Word-for-word law

195.010. Definitions. — The following words and phrases as used in this chapter and chapter 579, unless the context otherwise requires, mean:

(1) "", pain, whether resulting from disease, accidental or intentional trauma, or other causes, that the reasonably expects to last only a short period of time. Acute pain shall not include chronic pain, pain being treated as part of cancer care, or other end-of-life care, or medication-assisted treatment for substance use diss;

(2) "Addict", a person who uses one or more to such an extent as to create a tolerance for such drugs, and who does not have a medical need for such drugs, or who is so far addicted to the use of such drugs as to have lost the power of self-control with reference to his or her addiction;

(3) "", to apply a , whether by injection, inhalation, ingestion, or any other means, directly to the body of a patient or research subject by:

(a) A practitioner (or, in his or her presence, by his or her ); or

(b) The patient or research subject at the direction and in the presence of the practitioner;

(4) "Agent", an authorized person who acts on behalf of or at the direction of a , , or . The term does not include a , public , or employee of the or warehouseman while acting in the usual and lawful course of the carrier's or warehouseman's business;

(5) "Attorney for the state", any , , or authorized to investigate, commence and an under this chapter;

(6) "Controlled substance", a drug, substance, or in listed in this chapter;

(7) "", a substance the chemical structure of which is substantially similar to the chemical structure of a controlled substance in I or II and:

(a) Which has a stimulant, depressant, or hallucinogenic effect on the central nervous system substantially similar to the stimulant, depressant, or hallucinogenic effect on the central nervous system of a controlled substance included in Schedule I or II; or

(b) With respect to a particular individual, which that individual represents or intends to have a stimulant, depressant, or hallucinogenic effect on the central nervous system substantially similar to the stimulant, depressant, or hallucinogenic effect on the central nervous system of a controlled substance included in Schedule I or II. The term does not include a controlled substance; any substance for which there is an approved ; any substance for which an is in effect for investigational use, for a particular person, under Section 505 of the federal Food, Drug and Cosmetic Act (21 U.S.C. Section 355) to the extent conduct with respect to the substance is the exemption; or any substance to the extent not intended for human consumption before such an exemption takes effect with respect to the substance;

(8) "", a controlled substance which, or the container or labeling of which, without , bears the , , or other identifying mark, , number or device, or any likeness thereof, of a manufacturer, distributor, or dispenser other than the person who in fact d, , or the substance;

(9) "" or "", the actual, constructive, or attempted from one person to another of or of a controlled substance, or an , whether or not there is an , and includes a sale;

(10) "Dentist", a person authorized by law to practice dentistry in this state;

(11) "Depressant or stimulant substance":

(a) A drug containing any quantity of barbituric acid or any of the salts of barbituric acid or any derivative of barbituric acid which has been by the United States of Health and Human Services as habit forming under 21 U.S.C. Section 352(d);

(b) A drug containing any quantity of:

a. Amphetamine or any of its s;

b. Any salt of amphetamine or any salt of an isomer of amphetamine; or

c. Any substance the United States Attorney General, after investigation, has found to be, and by designated as, habit forming because of its stimulant effect on the central nervous system;

(c) ; or

(d) Any drug containing any quantity of a substance that the United States Attorney General, after investigation, has found to have, and by regulation designated as having, a potential for because of its depressant or stimulant effect on the central nervous system or its hallucinogenic effect;

(12) "", to deliver a or controlled dangerous drug to an or research subject by or pursuant to the lawful order of a practitioner including the prescribing, administering, packaging, labeling, or compounding necessary to prepare the substance for such delivery. "Dispenser" means a practitioner who ;

(13) "", to deliver other than by administering or a controlled substance;

(14) "Distributor", a person who ;

(15) "Drug":

(a) Substances as drugs in the official United States Pharmacopoeia, Official Homeopathic Pharmacopoeia of the United States, or Official Formulary, or any supplement to any of them;

(b) Substances intended for use in the , , mitigation, treatment or prevention of disease in humans or animals;

(c) Substances, other than food, intended to affect the structure or any function of the body of humans or animals; and

(d) Substances intended for use as a component of any article specified in this . It does not include devices or their components, parts or accessories;

(16) "", a person who is using a controlled substance and who is in a state of psychic or physical dependence, or both, arising from the use of such substance on a continuous basis. Drug dependence is characterized by behavioral and other responses which include a strong compulsion to take the substance on a continuous basis in order to its psychic or to avoid the discomfort caused by its absence;

(17) "Drug agency", the in the United States of Justice, or its agency;

(18) "Drug paraphernalia", all equipment, products, substances and s of any kind which are used, intended for use, or designed for use, in planting, propagating, cultivating, growing, harvesting, manufacturing, compounding, converting, producing, processing, preparing, storing, containing, concealing, injecting, ingesting, inhaling, or otherwise introducing into the human body a controlled substance or an imitation controlled substance in violation of this chapter or chapter 579. It includes, but is not limited to:

(a) Kits used, intended for use, or designed for use in planting, propagating, cultivating, growing or harvesting of any species of plant which is a controlled substance or from which a controlled substance can be derived;

(b) Kits used, intended for use, or designed for use in manufacturing, compounding, converting, producing, processing, or preparing controlled substances or ;

(c) Isomerization devices used, intended for use, or designed for use in increasing the potency of any species of plant which is a controlled substance or an imitation controlled substance;

(d) Testing equipment used, intended for use, or designed for use in identifying, or in analyzing the strength, effectiveness or purity of controlled substances or imitation controlled substances;

(e) Scales and balances used, intended for use, or designed for use in weighing or measuring controlled substances or imitation controlled substances;

(f) Dilutents and adulterants, such as quinine hydrochloride, mannitol, mannite, dextrose and lactose, used, intended for use, or designed for use in cutting controlled substances or imitation controlled substances;

(g) Separation gins and sifters used, intended for use, or designed for use in removing twigs and seeds from, or in otherwise cleaning or refining, marijuana;

(h) , bowls, containers, spoons and mixing devices used, intended for use, or designed for use in compounding controlled substances or imitation controlled substances;

(i) Capsules, balloons, envelopes and other containers used, intended for use, or designed for use in packaging small quantities of controlled substances or imitation controlled substances;

(j) Containers and other objects used, intended for use, or designed for use in storing or concealing controlled substances or imitation controlled substances;

(k) Hypodermic syringes, needles and other objects used, intended for use, or designed for use in parenterally injecting controlled substances or imitation controlled substances into the human body;

(l) Objects used, intended for use, or designed for use in ingesting, inhaling, or otherwise introducing marijuana, cocaine, hashish, or hashish oil into the human body, such as:

a. Metal, wooden, acrylic, glass, stone, plastic, or ceramic pipes with or without screens, permanent screens, hashish heads, or punctured metal bowls;

b. Water pipes;

c. Carburetion tubes and devices;

d. Smoking and carburetion masks;

e. Roach clips meaning objects used to hold burning material, such as a marijuana cigarette, that has become too small or too short to be held in the hand;

f. Miniature cocaine spoons and cocaine vials;

g. Chamber pipes;

h. Carburetor pipes;

i. Electric pipes;

j. Air-driven pipes;

k. Chillums;

l. Bongs;

m. Ice pipes or chillers;

(m) Substances used, intended for use, or designed for use in the manufacture of a controlled substance.

a. Statements by an owner or by anyone in control of the object concerning its use;

b. Prior , if any, of an owner, or of anyone in control of the object, under any state or federal law relating to any controlled substance or imitation controlled substance;

c. The proximity of the object, in time and space, to a direct violation of this chapter or chapter 579;

d. The proximity of the object to controlled substances or imitation controlled substances;

e. The existence of any of controlled substances or imitation controlled substances on the object;

f. Direct or circumstantial evidence of the intent of an owner, or of anyone in control of the object, to deliver it to persons who he or she knows, or should reasonably know, intend to use the object to facilitate a violation of this chapter or chapter 579; the innocence of an owner, or of anyone in control of the object, as to direct violation of this chapter or chapter 579shall not prevent a finding that the object is intended for use, or designed for use as drug paraphernalia;

g. Instructions, oral or written, provided with the object concerning its use;

h. Descriptive materials accompanying the object which explain or depict its use;

i. National or local advertising concerning its use;

j. The manner in which the object is displayed for sale;

k. Whether the owner, or anyone in control of the object, is a of like or related items to the community, such as a licensed distributor or of tobacco products;

l. Direct or circumstantial evidence of the ratio of sales of the object to the total sales of the business enterprise;

m. The existence and scope of legitimate uses for the object in the community;

n. Expert concerning its use;

o. The quantity, form or packaging of the product, substance or material in relation to the quantity, form or packaging associated with any legitimate use for the product, substance or material;

(19) "Federal narcotic laws", the laws of the United States relating to controlled substances;

(20) "Hemp", the same meaning given to the term in section 195.900;

(21) "Hospital", a place devoted primarily to the and operation of facilities for the diagnosis, treatment or care, for not less than twenty-four hours in any week, of three or more nonrelated individuals suffering from illness, disease, injury, deformity or other abnormal physical conditions; or a place devoted primarily to provide, for not less than twenty-four hours in any week, medical or nursing care for three or more nonrelated individuals. The term hospital does not include convalescent, nursing, shelter or boarding homes as defined in chapter 198;

(22) "Immediate precursor", a substance which:

(a) The state has found to be and by designates as being the compound commonly used or produced primarily for use in the manufacture of a controlled substance;

(b) Is an immediate chemical used or likely to be used in the manufacture of a controlled substance; and

(c) The control of which is necessary to prevent, curtail or limit the manufacture of the controlled substance;

(23) "Imitation controlled substance", a substance that is not a controlled substance, which by appearance (including color, shape, size and markings), or by representations made, would lead a reasonable person to believe that the substance is a controlled substance. In determining whether the substance is an imitation controlled substance the court or concerned should consider, in addition to all other logically relevant factors, the following:

(a) Whether the substance was approved by the federal for over-the-counter (non or nonlegend) sales and was sold in the federal Food and Drug Administration-approved package, with the federal Food and Drug Administration-approved labeling ;

(b) Statements made by an owner or by anyone else in control of the substance concerning the nature of the substance, or its use or effect;

(c) Whether the substance is packaged in a manner normally used for controlled substances;

(d) Prior convictions, if any, of an owner, or anyone in control of the object, under state or federal law related to controlled substances or ;

(e) The proximity of the substances to controlled substances;

(f) Whether the in exchange for the noncontrolled substance substantially exceeds the reasonable value of the substance considering the actual chemical composition of the substance and, where applicable, the price at which over-the-counter substances of like chemical composition sell. An imitation controlled substance does not include a placebo or investigational drug either of which was manufactured, distributed, possessed or delivered in the ordinary course of professional practice or research;

(24) "", the same meaning given to the term in section 195.900;

(25) "Initial prescription", a prescription issued to a patient who has never previously been issued a prescription for the drug or its pharmaceutical equivalent or who was previously issued a prescription for the drug or its pharmaceutical equivalent, but the date on which the current prescription is being issued is more than five months after the date the patient last used or was administered the drug or its equivalent;

(26) "Laboratory", a laboratory approved by the department of health and senior services as proper to be entrusted with the of controlled substances but does not include a who compounds controlled substances to be sold or dispensed on prescriptions;

(27) "Manufacture", the production, preparation, propagation, compounding or processing of drug paraphernalia or of a controlled substance, or an imitation controlled substance, either directly or by extraction from substances of natural origin, or inly by means of chemical synthesis, or by a combination of extraction and chemical synthesis, and includes any packaging or repackaging of the substance or labeling or relabeling of its container. This term does not include the preparation or compounding of a controlled substance or an imitation controlled substance or the preparation, compounding, packaging or labeling of a narcotic or dangerous drug:

(a) By a practitioner as an incident to his or her administering or dispensing of a controlled substance or an imitation controlled substance in the course of his or her professional practice; or

(b) By a practitioner or his or her authorized agent under his or her supervision, for the purpose of, or as an incident to, research, teaching or and not for sale;

(28) "Marijuana", all parts of the plant genus Cannabis in any species or form thereof, including, but not limited to Cannabis Sativa L., except industrial hemp, Cannabis Indica, Cannabis Americana, Cannabis Ruderalis, and Cannabis Gigantea, whether growing or not, the seeds thereof, the resin extracted from any part of the plant; and every compound, manufacture, salt, derivative, mixture, or preparation of the plant, its seeds or resin. It does not include the mature stalks of the plant, fiber produced from the stalks, oil or cake made from the seeds of the plant, any other compound, manufacture, salt, derivative, mixture or preparation of the mature stalks (except the resin extracted therefrom), fiber, oil or cake, or the seed of the plant which is incapable of germination;

(29) "", any drug containing , , , or any of their salts, , or salts of optical isomers;

(30) "", any of the following, whether produced directly or indirectly by extraction from substances of vegetable origin, or independently by means of chemical synthesis, or by a combination of extraction and chemical analysis:

(a) Opium, , and any derivative, of opium or opiate, including their isomers, esters, ethers, salts, and salts of isomers, esters, and ethers, whenever the existence of the isomers, esters, ethers, and salts is possible within the specific chemical designation. The term does not include the isoquinoline alkaloids of opium;

(b) Coca leaves, but not including extracts of coca leaves from which cocaine, , and derivatives of ecgonine or their salts have been ;

(c) Cocaine or any salt, isomer, or salt of isomer thereof;

(d) Ecgonine, or any derivative, salt, isomer, or salt of isomer thereof;

(e) Any compound, mixture, or preparation containing any quantity of any substance referred to in paragraphs (a) to (d) of this subdivision;

(31) "Official written order", an order written on a form provided for that purpose by the United States of , under any laws of the United States making therefor, if such s are authorized and required by federal law, and if no such order form is provided, then on an official form provided for that purpose by the department of health and senior services;

(32) "Opiate"or "", any substance having an addiction-forming or addiction-sustaining similar to morphine or being capable of into a drug having addiction-forming or addiction-sustaining liability. The term includes its and levorotatory forms. It does not include, unless specifically controlled under section 195.017, the dextrorotatory isomer of 3-methoxy-n-methyl-morphinan and its salts (dextromethorphan);

(33) "Opium poppy", the plant of the species Papaver somniferum L., except its seeds;

(34) "Over-the-counter sale", a licensed pursuant to chapter 144of a drug other than a controlled substance;

(35) "Person", an individual, , government or governmental subdivision or agency, business trust, , trust, , , association, or any other legal or commercial ;

(36) "Pharmacist", a licensed pharmacist as defined by the laws of this state, and where the context so requires, the owner of a store or other place of business where controlled substances are compounded or dispensed by a licensed pharmacist; but nothing in this chapter shall be as conferring on a person who is not registered nor licensed as a pharmacist any authority, right or that is not granted to him by the pharmacy laws of this state;

(37) "", all parts, except the seeds, of the opium poppy, after mowing;

(38) "Possessed"or "possessing a controlled substance", a person, with the knowledge of the presence and nature of a substance, has actual or of the substance. A person has actual possession if he has the substance on his or her person or within easy reach and convenient control. A person who, although not in actual possession, has the power and the intention at a given time to exercise dominion or control over the substance either directly or through another person or persons is in constructive possession of it. Possession may also be sole or joint. If one person alone has possession of a substance possession is sole. If two or more persons share possession of a substance, possession is joint;

(39) "Practitioner", a physician, dentist, optometrist, , , scientific investigator, pharmacy, hospital or other person licensed, registered or otherwise permitted by this state to distribute, dispense, conduct research with respect to or administer or to use in teaching or chemical analysis, a controlled substance in the course of professional practice or research in this state, or a pharmacy, hospital or other institution licensed, registered, or otherwise permitted to distribute, dispense, conduct research with respect to or administer a controlled substance in the course of professional practice or research;

(40) "Production", includes the manufacture, planting, cultivation, growing, or harvesting of drug paraphernalia or of a controlled substance or an imitation controlled substance;

(41) "", the number to each person registered under the federal controlled substances laws;

(42) "Sale", includes , exchange, or gift, or offer therefor, and each such transaction made by any person, whether as principal, proprietor, agent, servant or employee;

(43) "State"when applied to a part of the United States, includes any state, , commonwealth, territory, thereof, and any area subject to the legal authority of the United States of America;

(44) "", includes unless specifically or unless listed in another schedule, any natural or synthetic material, compound, mixture, or preparation that contains any quantity of a substance that is a , including but not limited to any substance listed in paragraph (ll) of subdivision (4)*of 2 of section 195.017and any ; homologues; isomers, whether optical, positional, or geometric; esters; ethers; salts; and salts of isomers, esters, and ethers, whenever the existence of the isomers, esters, ethers, or salts is possible within the specific chemical designation, however, it shall not include any approved pharmaceutical authorized by the United States Food and Drug Administration;

(45) "Ultimate user", a person who lawfully possesses a controlled substance or an imitation controlled substance for his or her own use or for the use of a member of his or her household or immediate family, regardless of whether they live in the same household, or for administering to an animal owned by him or by a member of his or her household. For purposes of this section, the phrase "immediate family" means a husband, wife, parent, child, sibling, stepparent, stepchild, stepbrother, stepsister, grandparent, or grandchild;

(46) "", a person who supplies drug paraphernalia or controlled substances or imitation controlled substances that he himself has not produced or prepared, on official written orders, but not on prescriptions.

(RSMo 1939 § 9832, A.L. 1945 p. 957, A.L. 1953 p. 619, A.L. 1957 p. 679, A.L. 1971 H.B. 69, A.L. 1975 H.B. 438, A.L. 1982 S.B. 522, A.L. 1989 S.B. 215 & 58, A.L. 1997 H.B. 635, A.L. 1998 H.B. 1147, et al., A.L. 2001 H.B. 471 merged with S.B. 89 & 37, A.L. 2011 H.B. 641, A.L. 2014 S.B. 491, A.L. 2018 H.B. 2034 merged with S.B. 826, A.L. 2026 H.B. 2641)

Effective 11-12-26

*Statutory reference to paragraph "(ll) of subdivision (4)" changed to paragraph "(uu) of subdivision (5)" in accordance with section 3.060 based on renumbering within section 195.017 by H.B. 1896, 2020.

(1976) "Cannabis sativa" and "marihuana" are synonymous terms and charged with sale of "cannabis sativa" could be of sale of controlled substance. State v. Simpson (A.), 534 S.W.2d 568.

(1976) Term "marihuana" held synonymous with cannabis even under 1971 version of this section. State v. Morrow (A.), 535 S.W.2d 539.

(1987) Even though no money was exchanged before defendant was arrested for selling marijuana, instruction to jury on of selling marijuana was proper since acts of defendant constitute "sale" as defined by this section where defendant had made an agreement with undercover officers to deliver a set quantity for a set price and the defendant then delivered the marijuana to such officers. State v. McClintic, 731 S.W.2d 853 (Mo. App.).

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RSMo 195.010: Definitions | KnowMo Laws