Side effects of antipsychotics and anti depressants drugs Flashcards
Second generation antipsychotics are used as 1st line therapy because of
lower risk of extrapyramidal side effects compared to first generation medication.
common side effects of second generation antipsychotics
weight gain, dyslipidemia, hyperglycemia (including new onset diabetes) highest risk drugs: clozapine and olanzapine
how to monitor patients who are on second generation anti psychotics with regards to side effects
baseline and regular follow up with BMI fasting glucose and lipid panels blood pressure waist circumference no need to check TSH or LFTs. those with DM2 and those who gain >5% of initial weight should be monitored closely.
2nd generation antipsychotics with less risk for metabolic side effects are:
aripiprazole and ziprasidone
which 2nd generation antipsychotic drug can cause agranulocytosis and how is this monitored?
clozapine, NOT olanzapine. Monitored with weekly CBC in 1st 6 months of treatment due to increased risk for agranulocytosis.
how to treat drug induced parkinsonism (DIP)
Treatment is with stopping offending agent or switch to antipsychotic with low potential for causing extrapyramidal effects quetiapine or clozapine
drug induced Parkinsonism is caused by
dopamine D2 receptor antagonists are most common offending agents (typical antipsychotics - haloperidol) and atypical antipsychotics (respiridone) and antiemetics. See Parkinsonism with bradykinesia rigidity and tremor.
abnormal involuntary movements from prolonged use of antipsychotic meds or metoclopramide see orofacial dyskinesia (tongue protrusion, lip smacking, and grimacing)
this is tardive dyskinesia
limb dyskinesia (dystonic postures, foot tapping, chorea) trunk dyskinesia (rocking, thrusting, shoulder shrugging)
other presentation of tardive dyskinesia
management of tardive dyskinesia
discontinue causative agent if feasible switch to second generation antipsychotic (quetiapine, clozapine) if continued antipsychotic is needed treat with valbenazine and deutetrabenazine
risk factors for tardive dyskinesia
female >12 weeks duration of the tx older age DM2 hx
frequent fidgeting, pacing, rocking while standing, crossing and uncrossing legs while sitting and inner sense of restlessness and inability to sit still
akathisia
what is the problem about akathisia
distressing for pts and makes them uncomfortable also recognized as anxiety and agitation and mistaken for psychotic decompensation. increasing the medication can worsen the akasthsia
acute dystonic reaction is
sudden onset of distressing involuntary contraction of neck, mouth, tongue and eye muscles occurs within the 1st few days of antipsychotic exposure treat with anticholinergic medication (benztropine or diphenhydramine)
important side effects of antipsychotic medications are