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Other names | N-Propylamphetamine; NPA; PAL-424 |
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Pharmacokinetic data | |
Metabolism | Hepatic |
Excretion | Renal |
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CompTox Dashboard (EPA) | |
ECHA InfoCard | 100.215.934 |
Chemical and physical data | |
Formula | C12H19N |
Molar mass | 177.291 g·mol−1 |
3D model (JSmol) | |
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Propylamphetamine (code name PAL-424; also known as N-propylamphetamine or NPA) is a psychostimulant of the amphetamine family which was never marketed. It was first developed in the 1970s, mainly for research into the metabolism of, [1] and as a comparison tool to, other amphetamines. [2]
Propylamphetamine is inactive as a dopamine releasing agent in vitro and instead acts as a low-potency dopamine reuptake inhibitor with an IC50 of 1,013 nM. [3] The drug can be N-dealkylated to form amphetamine (10–20% excreted in urine after 24 hours). [4] [5] A study in rats found propylamphetamine to be approximately 4-fold less potent than amphetamine. [6] [7]
Phenylpropanolamine (PPA), sold under many brand names, is a sympathomimetic agent which is used as a decongestant and appetite suppressant. It was previously commonly used in prescription and over-the-counter cough and cold preparations. The medication is taken by mouth.
Levmetamfetamine, also known as l-desoxyephedrine or levomethamphetamine, and commonly sold under the brand name Vicks VapoInhaler among others, is an optical isomer of methamphetamine primarily used as a topical nasal decongestant. It is used to treat nasal congestion from allergies and the common cold. It was first used medically as decongestant beginning in 1958 and has been used for such purposes, primarily in the United States, since then.
Aminorex is a weight loss (anorectic) stimulant drug. It was withdrawn from the market after it was found to cause pulmonary hypertension. In the U.S., it is an illegal Schedule I drug, meaning it has high abuse potential, no accepted medical use, and a poor safety profile.
Etilamfetamine, also known as N-ethylamphetamine and formerly sold under the brand names Apetinil and Adiparthrol, is a stimulant drug of the amphetamine family. It was invented in the early 20th century and was subsequently used as an anorectic or appetite suppressant in the 1950s, but was not as commonly used as other amphetamines such as amphetamine, methamphetamine, and benzphetamine, and was largely discontinued once newer drugs such as phenmetrazine were introduced.
Naphthylaminopropane (PAL-287) is an experimental drug under investigation as of 2007 for the treatment of alcohol and stimulant addiction.
1-Phenyl-2-propylaminopentane is an experimental drug related to selegiline which acts as a catecholaminergic activity enhancer (CAE).
Levoamphetamine is a stimulant medication which is used in the treatment of certain medical conditions. It was previously marketed by itself under the brand name Cydril, but is now available only in combination with dextroamphetamine in varying ratios under brand names like Adderall and Evekeo. The drug is known to increase wakefulness and concentration in association with decreased appetite and fatigue. Pharmaceuticals that contain levoamphetamine are currently indicated and prescribed for the treatment of attention deficit hyperactivity disorder (ADHD), obesity, and narcolepsy in some countries. Levoamphetamine is taken by mouth.
para-Chloroamphetamine (PCA), also known as 4-chloroamphetamine (4-CA), is a substituted amphetamine and monoamine releaser similar to MDMA, but with substantially higher activity as a monoaminergic neurotoxin, thought to be due to the unrestrained release of both serotonin and dopamine by a metabolite. It is used as a neurotoxin by neurobiologists to selectively kill serotonergic neurons for research purposes, in the same way that 6-hydroxydopamine is used to kill dopaminergic neurons.
MDAI, also known as 5,6-methylenedioxy-2-aminoindane, is an entactogen drug of the 2-aminoindane group which is related to MDMA and produces similar subjective effects.
A monoamine releasing agent (MRA), or simply monoamine releaser, is a drug that induces the release of one or more monoamine neurotransmitters from the presynaptic neuron into the synapse, leading to an increase in the extracellular concentrations of the neurotransmitters and hence enhanced signaling by those neurotransmitters. The monoamine neurotransmitters include serotonin, norepinephrine, and dopamine; monoamine releasing agents can induce the release of one or more of these neurotransmitters.
Amfonelic acid is a research chemical and dopaminergic stimulant with antibiotic properties. Limited clinical trials have been conducted, and it is primarily used in scientific research.
A dopamine releasing agent (DRA) is a type of drug which induces the release of dopamine in the body and/or brain.
4-Methylamphetamine is a stimulant and anorectic drug of the phenethylamine and amphetamine chemical classes.
3-Fluoroamphetamine is a stimulant drug from the amphetamine family which acts as a monoamine releaser with similar potency to methamphetamine but more selectivity for dopamine and norepinephrine release over serotonin. It is self-administered by mice to a similar extent to related drugs such as 4-fluoroamphetamine and 3-methylamphetamine.
A monoamine reuptake inhibitor (MRI) is a drug that acts as a reuptake inhibitor of one or more of the three major monoamine neurotransmitters serotonin, norepinephrine, and dopamine by blocking the action of one or more of the respective monoamine transporters (MATs), which include the serotonin transporter (SERT), norepinephrine transporter (NET), and dopamine transporter (DAT). This in turn results in an increase in the synaptic concentrations of one or more of these neurotransmitters and therefore an increase in monoaminergic neurotransmission.
4-Hydroxy-3-methoxymethamphetamine (HMMA) is an active metabolite of 3,4-methylenedioxymethamphetamine (MDMA). It is a slightly more potent stimulant than MDMA in rodents. The drug is substantially less potent than MDMA as a monoamine releasing agent in vitro. Nonetheless, HMMA has been found to induce the release of serotonin, norepinephrine, and dopamine with EC50Tooltip half-maximal effective concentration values of 589 nM, 625 nM, and 607–2884 nM, respectively, and hence acts as a lower-potency serotonin–norepinephrine–dopamine releasing agent (SNDRA). The predicted log P of HMMA is 1.2.
Hyperlocomotion, also known as locomotor hyperactivity, hyperactivity, or increased locomotor activity, is an effect of certain drugs in animals in which locomotor activity is increased. It is induced by certain drugs like psychostimulants and NMDA receptor antagonists and is reversed by certain other drugs like antipsychotics and certain antidepressants.
(2R,3R)-Hydroxybupropion, or simply (R,R)-hydroxybupropion, is the major metabolite of the antidepressant, smoking cessation, and appetite suppressant medication bupropion. It is the (2R,3R)-enantiomer of hydroxybupropion, which in humans occurs as a mixture of (2R,3R)-hydroxybupropion and (2S,3S)-hydroxybupropion (radafaxine). Hydroxybupropion is formed from bupropion mainly by the cytochrome P450 enzyme CYP2B6. Levels of (2R,3R)-hydroxybupropion are dramatically higher than those of bupropion and its other metabolites during bupropion therapy.
Butylamphetamine is a psychostimulant of the substituted amphetamine family which was never marketed.
3-Chloroamphetamine (3-CA), also known as meta-chloroamphetamine, is a psychostimulant of the amphetamine family and a potent serotonergic neurotoxin related to para-chloroamphetamine (PCA). It is a potent serotonin–norepinephrine–dopamine releasing agent (SNDRA).
Although the number of amphetamine analogues with different amine substituents is relatively low in recreational drug markets (Cho and Segal, 1994), N-methyl and N-ethyl substitutions are sometimes found. Pharmacological activity of amphetamine-type drugs is decreased substantially if the N-alkyl chain is lengthened beyond ethyl, as previous studies show that N-propylamphetamine and N-butylamphetamine are ~4-fold and ~6-fold less potent than amphetamine in rats (Woolverton et al., 1980).