Drug Side Effects Flashcards
Sulphasalazine side effects
RASH
mouth ulcers
Oligospermia
Causes of gingival hyperplasia
Cyclosporin
Tacrolimus
Nifedipine (in bad oral hygiene)
Phenytoin
Methotrexate side effects
Pneumonitis and pulmonary fibrosis (lower zone)
Hepatotoxicity
Tetratogenic
Hydroxychloroquine side effects
Irreversible retinopathy (check visual acuity annually)
Azathioprine side effects
Diarrhoea and other GI problems
Leflunomide side effects
Teratogenic
Hypertension
Hepatotoxicity
Better to be used in elderly patients.
Side effects of VALPROATE
"vALPROATE" Appetite increase and weight gain Liver failure (monitor LFTs during first 6/12) Pancreatitis Reversible hair loss Oedema Ataxia Teratogenicity (NTD); Tremor; Thrombocytopaenia Encephalopathy (from hyperammonaemia)
Hydantoin syndrome
- Causes
- Clinical features
- Phenytoin, Carbamazepine
2. Hypoplastic digits, intellectual impairment, craniofacial abnormalities, growth retardation
Clozapine side effects
“TNM SS”
Temperature raised
Neutropenia (pts. need to be registered with a Clozapine monitoring service)
Myocarditis/cardiomyopathy
more associated with Metabolic Syndrome than other antipsychotics
Seizures particularly
Sialorrhoea (unknown mechanism, treat with Hyoscine)
NB. does NOT cause hyperprolactinaemia
Rispiridone
Atypical antipsychotic
Only antipsychotic available in a depot.
4 types of EPSEs associated with antipsychotics
Dystonia reactions - give procyclidine Tardive dyskinesia - refractory to treatment with anti-Ch Akithesia (unpleasant subject feeling of motor restlessness) - beta-blocker, antihistamines treat Pseudo parkinsonian - anticholinergics
General side effects associated with Antipsychotic drugs
Neuroleptic syndrome
Extrapyramidal side effects
Long QT
Hyperprolactinaemia (does not occur in clozapine, quetiapine, aripiprazole - the new antipsychotics)
Hyponatraemia
- increased water, SIADH, or pseudo- from raised lipids
Weight gain (esp. Clozapine and Olanzapine)
Reduced seizure threshold (esp. Clozapine)
Postural hypotension
Therapeutic dose of Clozapine
> 350u/l needed for therapeutic effect
Seizures >1000u/l
Usually do 600u/l with valproate cover for seizures
Carbamazepine side effects
“SAT”
Skin problems - toxic epidermal necrosis
Arrhythmias
Teratogenic it’s - fetal hydatoin syndrome
Also other CNS stuff, eg. Ataxia etc.
Indications for haemodialysis in drug poisonings
Pts with severe clinical features, and high plasma levels of:
“SMILEE” upside down
Salicylate Methanol Isopropanol Lithium Ethanol Ethylene glycol