Neuro Flashcards
Treatment for subarachnoid hemorrhage
Nimodipine
what is the time gap that tPa can be used for a stroke
4.5hrs—pt presents w/in 3hrs of onset
Treatment for cluster HA
inhaled O2
sumatriptan
Abortive therapy for migraine
Triptans
Prophylactic therapy for migraine
propranolol
topiramate
List the alpha blocker s used for glaucoma and MOA for this
Epinephrine–decrease aqueous humor syn by VC
Brimonidine—Decrease aquaous humor syn
toxicity associated with use of epi and Brimonidine for glaucoma
Mydriasis blurry vision ocular hyperremia FB sensation ocular allergic Rxn ocula pruritus
List the beta blockers used for glaucoma and the MOA
Timolol
betaxolol
carteolol
decrease aqueous humor syn
List the diurectic used for glaucoma and the MOA for this
Acetazolamide
decreases aqueous humor syn via inhibition of Carbonic anhydrase
List the cloinomimetics used for glaucoma
direct: pilocarpin, carbachol
Indirect: physostigmine, echothiophate
How do the cholinomimetics increase aqueous humor outflow
by contraction of ciliary muscle and opening of the trabecular meshwork
When is pilocarpine used
only during emergencies
Toxicities associated with using cholinomimetics for glaucoma
miosis
cyclospasm
List the prostaglandin used for glaucoma and the MOA for this
Latanoprost PGF2alpha
increases outflow of aquaos humor
Latanaprost toxicity
darkens color of the iris
List all of the opioid analgesics
Morphine fentanyl codeine heroin methadone meperidine dextromethorphan diphynoxylate
Opioid MOA
opening K+ channels an d closing Ca2+ channels reducing transmission
Inhibit release of Ach, NE, 5-HT, glutamate, subsstance P
List the receptor that opoid inhibit
mu–morphine
delta–enkephalin
kaapa–dynorphin
Which of the opiod is used for coudh suppression in additon to pain
dextromehtorphan
Which opioid is used for diarrhea inaddition to pain
diphenoxylate
Opiods are also used for
acute pulmonary edema
Opiod toxicity
Addiction Respiratory depression constipation--no tolerance! Miosis---no tolerance to this Additive CNS depression with other drugs
Treatment of opioid intoxication
Naloxone
naltrexone
Butophenol MOA
Mu-opiod partial agonist
kappa-opioid receptor agonist
Butophenol use
Severe pain
ex: migraine and labor
Butorphanol toxicity and problems
causes less Resp depression than opiods but overdose less reversible with naloxone
withdrawal SXs if taking opioid at the same time b/c it competes for opioid receptors
Tramadol MOA
Weak opiod agonist
inhbits the Serotonin and NE reuptake
Tramadol use and toxicity
Chronic pain
Decrease SEIZURE threshold
other toxicities similar to opioids
List all the epilepsy drugs (12)
Phenytoin carbamezepine Lamotrogine Gabapentin Topiramate phenobarbital valproic acid Ethosuximide Benzodiazepine:diazepam or lorazepam Tigabine Vigabatrin Levetiracetam
first line treatment for Status epilepticus
phenytoin
diazepam or lorazepam
Phenytoin MOA
inhibits glutamater release by blockade of Na+ channels class IB antiarrythmic
Phenytoin toxicities
nystagmus ataxia diplopia sedation SLE-like syndrome indcutor of P-450 gingival hyperplasia in kids peripheral neuropathy hirsutism megaloblastic anemia--reduce folate absorption Teratogen Steve johnson' syndrome lymphadnopathy
Carbamazepine MOA
Na+ channel inactivation
Carbamazepine uses
1st line Simple, complex and tonic clonic seizures
1st line for trigeminal neuralgia
Carbamazepine toxicities
Diplopia agranulocytosis aplastic anemia liver toxicity teratogenesis induction of P-450 SIADH Stevens-johnson syndrome
Lamotrogine MOA and use
blocks voltage gated N+ channels
seizures
Lamotrogine toxicity
Steven johnson syndrome
Gabapentin MOA
A GABA analog that primarily inhibits voltage gated Ca2+ channels
Gabapentin uses
seizures peripheral neuropathy neuralgia Migaraine prophylaxis Bipolar d/o
Gabapentin toxicity
Ataxia
sedation
Topiramate MOA and uses
Na+ channel blocker and increase GABA action
Seizures and Migraine prevention
Topiramate toxicity
Sedation
Mental dulling
kidney stones
weight loss
Phenobarbital MOA and use
Increase GABA A action
1st line for seizures in children