Participants with ≥ 1 vomiting episode · adults receiving intravenous opioids
Prophylactic dopamine antagonist antiemetic medications showed no clear difference in vomiting (≥1 episode) compared with placebo (low certainty).
1 finding from 1 review
Nausea · adults receiving intravenous opioids
Prophylactic dopamine antagonist antiemetic medications showed no clear difference in nausea (≥1 episode) compared with placebo (low certainty).
1 finding from 1 review
Adverse events · adults receiving intravenous opioids
Prophylactic dopamine antagonist antiemetic medications showed no clear difference in adverse events compared with placebo (low certainty).
1 finding from 1 review
Number of vomiting episodes · adults receiving intravenous opioids
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Nausea severity · adults receiving intravenous opioids
1 finding from 1 review
Use of rescue medication · adults receiving intravenous opioids
Prophylactic dopamine antagonist antiemetic medications showed no clear difference in rescue medication compared with placebo (low certainty).
1 finding from 1 review
Migraine frequency Number of attacks · adults with migraine
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Headache intensity (mean score) · adults with migraine
1 finding from 1 review
Global impression of disease · adults with migraine
1 finding from 1 review
Number experiencing adverse effects · adults with migraine
It is very uncertain whether botulinum toxin type A changes total number of participants experiencing an adverse event compared with other established prophylactic agent (very low certainty).
1 finding from 1 review
Number of migraine days per month: chronic migraine only · adults with migraine
1 finding from 1 review
Headache (frequency) · adults with migraine
1 finding from 1 review
Headache (frequency) · people with episodic migraine
2 findings from 1 review
Response · people with episodic migraine
Acupuncture probably leads to higher response compared with prophylactic drugs (moderate certainty).
2 findings from 1 review
Adverse effects (drop‐outs due to adverse effects4) · people with episodic migraine
Acupuncture probably leads to lower number of participants dropping out due to adverse effects compared with prophylactic drugs (moderate certainty).
1 finding from 1 review
Number of participants reporting an adverse event · people with episodic migraine
Acupuncture probably leads to lower number of participants reporting adverse effects compared with prophylactic drugs (moderate certainty).
1 finding from 1 review