Parkinson syndrome results from depletion of dopamine-producing neurons in the brain, mostly in older people [Broken dope mine bathing old man in smoke]
Parkinson-like symptoms can be induced by drugs:
Haloperidol [Halo peri denture]
Phenothiazine [Pentagram flaming-sulfur zine]
Levodopa [Levi jeans dope]
Choice drug for Parkinson
Crosses brain-blood barrier (unlike dopamine!) [One leg stepping into the brain]
Used by remaining dopaminergic neurons as a precursor to dopamine in the brain [Neuron & Levi make dope mine]
Long duration of action [Hour glass tied to legs]
Protein-rich foods decrease GI absorption [Chicken drum stick hitting & crumpling the knee]
Side effects are due to conversion of levodopa to dopamine outside the brain, having systemic effects that include:
Vomiting [Orange vomit]
arrhythmias [shaking heart]
Brown urine [Brown urine with dope mine]
Carbidopa [Carbon dope] co-administered with levodopa inhibits systemic conversion of levodopa to dopamine, therefore reducing side effects [Carbon dope sitting on the shoulder & cracking dope mines that are trying to enter the body]
Bromocriptine [bra hiding (brown iodine nipples)]
Impersonates dopamine by acting on dopaminergic receptors
Can cause hallucinations [Daydreaming of breasts] and orthostatic hypotension [low BP indicator]
arrhythmias in people with previous myocardial infarct [Shaking heart]
Also used to treat gynecomastia and prolactin-secreting tumors (since dopamine normally inhibits prolactin secretion) [Bromocriptine = Hide the brown [nipples]]
Amantadine [Amen done] [praying man]
Anti-viral drug with anti-Parkinsonian actions
Promotes recycling of dopamine [Holding recycling halo] by stimulating re-uptake and synthesis