1 Flashcards
What are the treatments for huntingtin’s
tetrabenazine
chlorpromazine
haloperidol, olanzapine, risperidone, quetiapine
What is tetrabenzaine
- HD treatment
- Inhibitor of vesicular monoamine uptake (VMAT)
- Decreases dopamine, less facilitation of movement-
What is chlorpromazine
- HD treatment
- DA antagonist, antipsychotic
What drugs can treat moderate Alzheimer’s
Tacrine
Donepezil
Rivastigmine
Galantamine
All have cholinergic side effects!
memantine
What is prescribed if acetylcholine esterase inhibitors can’t be tolerated in Alzheimer’s
What is used in conjunction with L-DOPA in PD
Carbidopa and benserazide
Don’t cross BBB
Entacapone and tolcapone
PNS drugs for PD treatment
COMT inhibitors
What are CNS drugs for PD treatment
- Tolcapone inhibits COMT, increases dopamine availability
- Selegiline and rasagiline - MAOb, increase DA availability
pramipexole and ropinirole
DA agonists used to treat PD
Benztropine and phencyclidine
mAChR antagonists can used to treat PD
difficult to manage side effects as non-selective
amantadine
mechanisms not understood
NMDA inhibitor that treats PD
What amfetamines are used medically
ADHD
modafinil - a2 adrenoreceptor activation, release of 5-HT. bad side effects
Convulsants
Pentylenetetrazol, penicilin, bicuculline, gabazine, strychnine
pentylenetetrazol
- induce seizures
- GABAa receptor antagonist
penicilin
- anti-GABA activity
- used widely as a seizure inducing agent to test anti-convulsives
- does not cross BBB, applied directly to cortical surface
strychnine
- induces seizures by acting as a glycine antagonist
- small doses given as ‘tonic’ give rise to ‘risus sardonicus’ - facial muscle tetany
- alkaloid from seed of tree nux vomica
- glycine acts as pentameric ligand-gated Cl- channel
action of NSAIDs
- inhibit both COX-1 and COX-2
- anti-inflammatory, anti-pyretic
- analgesic activity COX-2
- GI issues with COX-1
- COX-2 role in CNS unclear
neuropathic treatments
- capsaicin - licensed for symptomatic relief
- lidocaine - localised pain
opioids - agonist, antagonist, mixed
morphine, naloxone, buprenophine
buprenophine
- opioid
- partial agonist
- reduced abuse potential
- withdrawals not bad
nalorphine
- opioid
- delta, kappa partial agonist
- some analgesia, low abuse potnetial
- depression
pentazocine
- opioid
- combines mu antagonism and kappa agonist
tramadol
- opioid
- weak mu agonist
- weak inhibitor of monoamine reuptake
naloxone
- 1st opioid discovered
- competitive antagonist of all 3 opioid receptors
- little effect if given alone, can reverse all affects of full agonists
- used to treat respiratory depression in overdoses
how do you treat status epilepticus
Benzos: lorazepam, midazolam, diazepam
Na+ channel blockers and what for?
epilepsy
- phenytoin
- carbamazepine
- lamotrigine