Neuro Drugs Flashcards
Medications for Cognitive Impairment
Cholinesterase inhibitors
NMDA receptor antagonist
Donepezil (Aricept)
Cholinesterase inhibitors
Rivastigmine (Exelon)
Cholinesterase inhibitors
Galantamine (Razadyne)
Cholinesterase inhibitors
Cholinesterase inhibitors mechanism of action
Block the breakdown of acetylcholine (Ach) in the synaptic cleft
Increase availability of acetylcholine to postsynaptic Ach receptors
Cholinesterase inhibitors
indications
Alzheimer’s disease
Parkinson’s disease dementia
Lewy body dementia (off label)
Cholinesterase inhibitors side effects
Gastrointestinal: N/V, diarrhea, cramps Anorexia, weight loss Urinary incontinence Salivation, lacrimation Bradycardia / syncope
Memantine (Namenda)
NMDA Receptor Antagonist
Memantine Mechanism of action
Noncompetitive NMDA receptor antagonist
May reduce abnormal glutamatergic activity
Memantine indication
Alzheimer’s disease – moderate to severe
Memantine side effects
Dizziness
Headache
Confusion
Constipation
motor symptoms of PD due to
dopamine deficiency
loss of nigrostriatal dopaminergic neurons in substantial nigra
dopamine deficiency causes
less activation of direct pathway
less inhibition of indirect pathway
inhibits movements
levodopa given concurrently with
carbidopa
causes nausea and vomiting due to peripheral metabolism in area postrema
sinemet
25 mg carbidopa/100 mg levodopa