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Pharmacology

ISSN 0031-7012

13 papers in the library · 207 citations · publishing 1971-2020

Papers

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Different Effects of Cannabis Abuse on Adolescent and Adult Brain.

Pharmacology 2020 Stefan Dhein

Cannabis abuse is a common phenomenon among adolescents. The dominant psychoactive substance in Cannabis sativa is tetrahydrocannabinol (THC). However, in the past 40 years the content of the psychoactive ingredient THC in most of the preparations is not constant but has increased due to other breeding and culturing conditions. THC acts as the endocannabinoids at CB1 and CB2 receptors but...

Behavioural effects of co-administration of delta9-tetrahydrocannabinol with fluoxetine in rats.

Pharmacology 2010 Matthew Goddard, Paul F Smith, John C Ashton

Previous studies have suggested panic induced by cannabinoids may be potentiated by concurrently using selective serotonin reuptake inhibitors. We therefore tested for panic and anxiety-related behaviour in rats coadministered with the selective serotonin reuptake inhibitor fluoxetine hydrochloride and the CB1 agonist delta9-tetrahydrocannabinol. Although each drug alone elicited behaviours...

Methylenedioxymethamphetamine (MDMA, ‘Ecstasy‘) Serves as a Robust Positive Reinforcer in a Rat Runway Procedure

Pharmacology 2003 Gudrun Wakonigg, Katja Sturm, Alois Saria et al.

Although ‘ecstasy’ (3,4-methylenedioxymethamphetamine, MDMA) is, after marijuana, the second most prevalent illegal drug of abuse in European adolescents, animal experimental evidence of MDMA’s reinforcing effect has remained scarce, particularly in the rodent model, raising questions about the robustness of MDMA’s reinforcing effect under controlled laboratory conditions. In the present rat...

Reinforcing Effects of MDMA (‘Ecstasy’) in Drug-Naive and Cocaine-Trained Rats

Pharmacology 2001 Elisabeth Ratzenboeck, Alois Saria, Norbert Kriechbaum et al. 97 citations

3,4-Methylenedioxymethamphetamine (MDMA; ‘ecstasy’) is one of the most prevalent illegal drugs of abuse among European adolescents, a population not generally experienced with respect to ‘hard’ drugs such as cocaine. We, therefore, determined the reinforcing effect of intravenously self-administered MDMA in a fixed ratio 1 time-out 150 s schedule of reinforcement in rats that were truly drug...

Enhancement of morphine antinociception by ibogaine and noribogaine in morphine-tolerant mice.

Pharmacology November 1, 1998 S Sunder Sharma, Hemendra N. Bhargava 17 citations

The effects of ibogaine, an alkaloid isolated form the bark of the African shrub, Tabernathe iboga, and noribogaine, a metabolite of ibogaine, on morphine antinociception were determined in male Swiss-Webster mice. Mice were rendered tolerant to morphine by implanting them with a pellet containing 25 mg of morphine base for 3 days. Placebo pellet-implanted mice served as controls. The...

Comparison of the hallucinogenic indole alkaloids ibogaine and harmaline for potential immunomodulatory activity.

Pharmacology June 1, 1995 Robert V. House, P T Thomas, Hemendra N. Bhargava 12 citations

The immunomodulatory potential of the indole alkaloids ibogaine and harmaline was examined in a panel of in vitro immune function assays. These assays were chosen to assess T-cell regulatory and effector function, B-cell function, macrophage function, and natural killer-cell function. The in vitro exposure to either ibogaine or harmaline resulted in a dose-related suppression of all immune...

Binding of Mescaline with Subcellular Fractions upon Incubation of Brain Cortex Slices with [14C] Mescaline

Pharmacology 1977 R. K. Datta, W Antopol Dagger, Jagat J. Ghosh 1 citation

Incubation of brain cortex slices in the presence of glucose resulted in the permeation of about 65% of [14C] mescaline into slices. Of this, about one-third radioactivity was bound with nuclei, mitochondria, microsomes, and ribosomes. Dialysis of subcellular fractions did not markedly reduce the amounts of radioactivity bound to the fractions. The permeation into slices and the binding of...

DOI: 10.1159/000136700 (opens in new tab) Mescaline Incubation Cortex anatomy Microsome +5

Studies on Accumulation of (14C)-Mescaline in Brain Homogenates: Effects of Psychotropic and Other Agents

Pharmacology 1975 Nandkumar S. Shah, Om D. Gulati

Incubation of rat brain homogenates or 14,500 g pellet isolated from the homogenate with (14C)-mescaline was associated with accumulation of (14C)-mescaline in the pellet. 1.33 mumol/ml of chlorpromazine, trifluoperazine, fluphenazine, imipramine, desmethylimipramine, nortriptyline and amitriptyline inhibited the accumulation of mescaline. Lower concentrations (0.133-0.44 mumol/ml) of the...

DOI: 10.1159/000136916 (opens in new tab) Mescaline Imipramine Tricyclic Chlorpromazine +8

Effects of delta9-tetrahydrocannabinol and cannabinol in man.

Pharmacology 1975 I G Karniol, I Shirakawa, R N Takahashi et al.

The interaction of delta9-tetrahydrocannabinol (delta9-THC) and cannabinol (CBN) was studied in man. Five male volunteers were given placebo, 50 mg CBN, 25 mg delta9-THC, 12.5 mg delta9-THC + 25 mg CBN, and 25 mg delta9-THC + 50 mg CBN (orally). Administrations were spaced 1 week apart. With physiological measures, delta9-THC produced an increase in heart rate while CBN did not. When combined,...

Animal Pharmacology and Human Psychopharmacology of 3-Methoxy-4,5-Methylenedioxyphenylisopropylamine (MMDA)

Pharmacology 1973 Alexander T. Shulgin, Thornton W. Sargent, Carolina Lopez Naranjo 33 citations

A rationale is presented for the investigation of the synthesis and pharmacology of 3-methoxy-4,5-methylenedioxyphenyl isopropylamine (MMDA) as a potential psychodysleptic compound; these experiments are reported. The chemical synthesis and physical properties of this compound are described. The pharmacologic effects of MMDA in several animal species are presented, as are its clinical effects...

DOI: 10.1159/000136416 (opens in new tab) Psychopharmacology Euphoriant

II. The Effects of Some Hallucinogens on Aggressiveness of Mice and Rats

Pharmacology 1972 Wojciech Kostowski, W Rewerski, T Piechocki 28 citations

The action of JB-336, psilocybin, ibogaine and bufotenine on the aggressiveness os isolated mice, as well as the muricide reaction of rats, was investigated. All drugs evoked a substantial decrease in aggressiveness, but this effect was dependent on isolation time, time after injection and the type of test used.

DOI: 10.1159/000136297 (opens in new tab) Psilocybin Hallucinogen Pharmacology Psychotomimetic

The Effects of some Hallucinogens on Aggressiveness of Mice and Rats

Pharmacology 1971 W Rewerski, Wojciech Kostowski, T Piechocki et al. 19 citations

The action of LSD, mescaline and Sernyl® onthe aggressiveness of isolated mice and killing reaction ofrats was investigated. At some dose range, LSD decreased the aggressiveness on isolation time. Mescaline was a strong in mice but not in rats whileSernyl slightly decreased the killing reaction and decreasedor increased the aggressiveness of mice according to dose level.

DOI: 10.1159/000136205 (opens in new tab) Mescaline Hallucinogen Pharmacology Psychotomimetic

4-Bromo-2,5-dimethoxyphenylisopropylamine, a new centrally active amphetamine analog.

Pharmacology 1971 Alexander T. Shulgin, Thornton W. Sargent, C. Naranjo

A new centrally active halo-amine, 4-bromo-2,5 dimethoxyphenylisopropylamine, is described. In clinical evalua tion it proved to enhance effectively both emotional and in tellectual perception, without the imagery and perceptual distortions commonly encountered with many of the chemically related psychotomimetics. These properties suggest a potential valuable role in conjunction with...