AEDs Flashcards
Levetiracetam brand name?
keppra generic name?
tiagabine brand name?
gabitril generic name?
topiramate brand name?
topamax generic name?
vigabatrin brand name?
sabril generic name?
Benzodiazepine indications?
First line for generalized seizures. Anesthesia induction. Anxiety. Eclampsia. Alcohol withdrawal/detox.
MoA benzodiazepines?
increase frequency of Cl- channel opening: which is a GABA inhibitory channel
Side Effects of benzos?
Dependence, CNS/respiratory depression, reduced REM sleep
What is the antidote for benzo overdose?
flumazenil
MoA barbituates?
increases duration of Cl- channel opening; Cl- influx inhibits excitatory neuron firing and increases inhibitory GABA influence
Side Effects of barbituates?
CNS, Respiratory depression, dependence, P450 inducer
Indication for phenobarbital?
AED
Two things to consider when using phenobarbital?
- have to monitor plasma levels 2. addiction potential
SE of phenobarbital specifically?
- ataxia 2. fatigue/somnolence 3. paradoxical excitement
Phenytoin brand name?
dilantin generic name?
MoA for phenytoin:
- Blocks activation of Na+ channels which inhibits glutamate release
- Also Class IIB antiarrhythmic
Indications for phenytoin?
- status epilepticus 2. tonic-clonic/generalized seizures1
Side Effects of phenytoin?
- hirsuitism 2. gingival hyperplasia 3. neuropathy 4. megaloblastic anemia 5. teratogenic 6. drug induced SLE 7. induce cytochrome p450 8. teratogenic
what drug is first line for tonic-clonic seizures?
valproic acid
valproic acid brand name?
depakote generic name?
valpoic acid MoA?
Increases concentration of GABA by inhibiting activation of voltage gated Na+ channels
3 indications for valproic acid?
- first line for tonic clonic seizures 2. bipolar disorder 3. migraine ppx
MC side effect of valproic acid?
GI upset
In what condition is valproic acid CI in?
Pregnancy
Mneumonic for side effects of valproic acid?
V-A-L-P-R-O-A-T-E V - vomiting A - alopecia L - liver toxicity P - Pancreatitis and Pancytopenia R - retaining (Weight gain) O - Oedema A - appetite increase T - tremor E - enzyme inhibitor P450
Use and MoA for tiagabine/gabitril?
AED adjunct / decreases presynaptic uptake of GABA increasing GABA concentration in the synapse
Use of vigabatrine/sabril?
Infantile spasms