Drugs Used In Parkinsonism Flashcards
Parkinsonism is due to
Degeneration of dopaminergic neurons in substantia nigra
Drug induced parkinsonism is due to
Typical antipsychotics, reserpine, MPTP(methylphenyltetrahydropyridine)
Alternating periods of improved mobility and akinesia
On-Off phenomena
deterioration of drug effect in betweem medication dosese
Wearing off phenomena
Wearing off effect due to
destrucion of nigrostriatial neurons
Primary drug for Parkison’s
Levodopa Carbidopa
Carbidopa inhibits peripheral metabolism via
Dopa carboxylase
Levodopa Carbidopa CI in
Psychosis
Bromocriptine is partial agonist of
D2 receptors in brain
Used for levodopa intolerance and hyperprolactinemia
Bromocriptine
May cause erythromelalgia
Bromocriptine
Partial agonist at D3 receptors
Pramipexole
SE: Compulsive gambling, overeating
Pramipexole
Also for restless leg syndrome
Pramipexole
Partial agonist at D3 receptors. Antagonizes 5HT and alpha adrenoreceptors
Apomorphine