Antiemetics should only be prescribed when the cause is known, otherwise they may delay diagnosis especially in children.
Some antiemetics can cause unpleasant side effects which may cause more problems than the original nausea and vomiting.
Please see under each option for indications and first/ second/ third line choices.
Order below alphabetical and indicative of the preferred order of use.
Some can carry an anticholinergic burden that can be problematic when combined with other drugs.
|Vomiting in pregnancy
Nausea in pregnancy is generally mild and does not require treatment.
Occasionally where vomiting is severe an antihistamine such as promethazine may be used
If severe vomiting persists longer than 48 hours specialist input is recommended. Hyperemesis gravidarum may require IV fluids and electrolyte support.
|Post operative nausea and vomiting
Risks should be assessed prior to operation. Various factors may affect post-operative nausea and vomiting
Treatment depends on risk, type of surgery and anaesthetic used.
This should be managed prior to discharge. Continuation of antiemetics post discharge is rarely required.
||Antiemetics required as a result of chemotherapy should be managed through the individuals regimen.
||For guidance in this area please see Isle of Wight Palliative Care Symptom Control Guidelines 2018