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24<br />

The <strong>Royal</strong> <strong>Marsden</strong><br />

Antiemetics [3]<br />

5HT3 antagonists<br />

– Indications<br />

– Chemotherapy<br />

– Radiotherapy<br />

– Bowel distension<br />

– Renal failure<br />

– Examples<br />

– Granisetron<br />

– Ondansetron<br />

– Side effect of<br />

constipation<br />

Steroids<br />

– Mode of action<br />

– Reduce permeability of<br />

BBB<br />

– Deplete GABA in<br />

antiemetic neurones<br />

– Anti-inflammatory<br />

– Indications<br />

– Raised intracranial<br />

pressure<br />

– Chemotherapy<br />

– Bowel obstruction<br />

– Example<br />

– Dexamethasone

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