Anti-Parkinson's Disease Flashcards
Primary signs of Parkinson’s Disease
Tremors, Rigidity, Akinesia, Postural instability
Site of degeneration of dopaminergic neurons in paralysis agitans
Substantia nigra
Drugs that induce Parkinsonism
Typical antipsychotics, Reserpine, MPTP
Peripheral metabolism of Levodopa
COMT to become 3-OMD
DOPA decarboxylase to become Dopamine
Central metabolism of Levodopa
DOPA decarboxylase to Dopamine
Central metabolism of Dopamine
MAO-B to DOPAC
COMT to 3-OMD
Toxic metabolites of Levodopa peripherally
3-OMD and dopamine
Toxic metabolites of Dopamine centrally
3-OMD and DOPAC
Inhibits peripheral DOPA decarboxylase
Levodopa-Carbidopa
Primary drug for Parkinson’s disease
Levodopa-Carbidopa
Levodopa-Carbidopa side effect:
Alternating periods of improved mobility and akinesia during treatment
On and Off Phenomenon
Levodopa-Carbidopa side effect:
Deterioration of drug effect in between medication doses
Wearing Off Phenomenon
Contraindication of Levodopa-Carbidopa
Psychosis
Levodopa-Carbidopa + MAO-B inhibitor
Hypertensive crisis
Treatment for on and off phenomenon
Apomorphine
Treatment for wearing off phenomenon
Entacapone
Intermittent occlusion of vessels in the upper snd lower extremities causing burning pain
Erythromelalgia