chest pain, with definite myocardial infarction on the second occasion, occurred one hour after he had injected amphetamine. He had taken amphetamine intravenously on other occasions without chest pain, but this may reflect the varying strength of amphetamine available on the streets or variation in the coronary vascular response to noradrenaline release induced by amphetamine. Nevertheless, th...

Previous studies in rats have shown that ibogaine inhibits neurochemical and behavioral effects of morphine yet potentiates similar effects of (+)-amphetamine. To assess whether these different functional interactions have a metabolic basis, brain levels of morphine and (+)-amphetamine were measured by gas chromatography-mass spectrometry after ibogaine pretreatment (19 h before injection of mo...

Nov 30, 2012 . Didrex is metabolized to methamphetamine. prescription drugs (Adderall and various amphetamine salts) or as a result of methamphetamine . Methamphetamine (contracted from Nmethylamphetamine) is a strong central nervous system. .. Methamphetamine is metabolized by the liver enzyme CYP2D6, so CYP2D6. .. Jump up to: "Adderall XR Prescribing Information" (PDF ). United . Nov 2, 2007 ...

Intraperitoneal (IP) injection of bupropion (3,6, amine (4,16 mg kg•') induced dose-dependent climbing in mice. The climbing response induced by both drugs were decreased in animals pretreated either with the 0-1 antagonist SCH 233<)0 or the 0-2 antagonist sulpiride. The α-adrenoceptor blocker phenoxybenzamine decreased the climbing induced by both bupropion and amphetamine, but the β-ad...

OBJECTIVE Amphetamine has been known to induce cardiac dysrhythmia and sudden death. However, the molecular mechanism for the induction of dysrhythmia is not known. Connexin43 (Cx43) plays an important role for arrhythmogenesis. This study was undertaken to test the hypothesis that amphetamine could induce Cx43 expression in cardiac myocytes. METHODS Neonatal Wistar rat cardiac myocytes were ...

Changes in endogenous dopamine levels can be detected in humans using positron emission tomography scans by measuring the amount by which a specific D2/3 radioligand is displaced. In some cases, a challenge drug such as amphetamine is introduced to increase the amount of dopamine released into the synaptic cleft. Although intravenous amphetamine is often utilized, oral amphetamine has been show...

Rationale: Lisdexamfetamine is a prodrug of D-amphetamine used for the treatment of attention-deficit/hyperactivity disorder (ADHD). Lisdexamfetamine is thought to have a prolonged pharmacokinetic profile compared with oral D-amphetamine, possibly associated with lower drug liking and a lower risk of oral misuse. However, differences in the pharmacokinetics and pharmacodynamics of lisdexamfetam...

The repeated intermittent administration of amphetamine (AMP) produces an enduring enhancement in the response of dopamine (DA) systems in the brain to a subsequent "challenge" with amphetamine. However, former amphetamine addicts are not only hypersensitive to amphetamine, but also to "physical or psychological stress". This suggests that sensitization to amphetamine may change the response of...

Objective(s): The effects of low dose amphetamine on oxidative stress and rotenone-induced neurotoxicity and liver injury were examined in vivo in a mice model of Parkinson’s disease. Materials and Methods: Male mice were treated with rotenone (1.5 mg/kg, every other day for two weeks, subcutaneously). Mice received either the vehicle or...

By increasing dopamine (DA) release and activating feedback mechanisms, amphetamine and related psychostimulants are known to inhibit DA cell firing. Here, we report that D-amphetamine also has an excitatory effect on DA cells, which under control conditions, is masked by the inhibitory effect of D-amphetamine and is revealed when D2-like receptors are blocked. Thus, using in vivo single-unit r...