Participant‐reported pain relief of 50% or greater · adults with fibromyalgia
Mirtazapine showed no clear difference in participant‐reported pain relief of 50% or greater (substantial… compared with placebo (low certainty).
1 finding from 1 review
Safety Any serious adverse event · adults with fibromyalgia
It is very uncertain whether mirtazapine changes safety: serious adverse events compared with placebo (very low certainty).
1 finding from 1 review
Withdrawals due to adverse events · adults with fibromyalgia
Mirtazapine showed no clear difference in tolerability: withdrawals due to adverse events compared with placebo (low certainty).
1 finding from 1 review
Participant‐reported pain relief of 30% or greater · adults with fibromyalgia
Mirtazapine may leads to higher participant‐reported pain relief of 30% or greater (moderate… compared with placebo (low certainty).
1 finding from 1 review
Participant‐reported sleep problems (scale: 0 to 28; higher scores indicate more sleep problems) · adults with fibromyalgia
Mirtazapine showed no clear difference in participant‐reported sleep problems (scale: 0 to 28; higher scores… compared with placebo (low certainty).
1 finding from 1 review
Somnolence · adults with fibromyalgia
Mirtazapine may leads to higher somnolence compared with placebo (low certainty).
1 finding from 1 review
Weight gain · adults with fibromyalgia
Mirtazapine may leads to higher weight gain compared with placebo (low certainty).
1 finding from 1 review
Intervention not reported
Mirtazapine RCTs: 1 Participants: 406 · people with chronic pain Interventions: duloxetine (all doses combined), milnacipran (all doses combined), mirtazapine (all doses…
1 finding from 1 review
no estimate extracted
1 participants
Low
Intervention not reported
Mirtazapine standard dose RCTs: 2 Participants: 457 · people with chronic pain Interventions: amitriptyline standard dose (25‐75 mg); desvenlafaxine high dose (> 50 mg); duloxetine low dose (<…
1 finding from 1 review
no estimate extracted
2 participants
Very low
Intervention not reported
Mirtazapine standard dose RCTs: 1 Participants: 422 · people with chronic pain Interventions: desvenlafaxine high dose (≥ 50 mg); duloxetine low dose (< 60 mg), standard dose (60 mg), and high…
1 finding from 1 review
no estimate extracted
1 participants
Low
Intervention not reported
Total studies: 42 Total participants: 14,626 · people with chronic pain Interventions: desvenlafaxine high dose (≥ 50 mg); duloxetine low dose (< 60 mg), standard dose (60 mg), and high…
The intervention led to lower total studies: 42 Total participants: 14,626; GRADE not reported.
1 finding from 1 review
no estimate extracted
42 participants
GRADE not reported
Intervention not reported
Desvenlafaxine high dose RCTs: 2 Participants: 870 · people with chronic pain Interventions: desvenlafaxine high dose (≥ 50 mg); duloxetine low dose (< 60 mg), standard dose (60 mg), and high…
1 finding from 1 review
no estimate extracted
2 participants
Very low
Intervention not reported
Total studies: 38 Total participants: 12,985 · people with chronic pain Interventions: duloxetine (all doses combined), milnacipran (all doses combined), mirtazapine (all doses…
1 finding from 1 review
no estimate extracted
38 participants
GRADE not reported
Intervention not reported
Duloxetine RCTs: 26 Participants: 7952 · people with chronic pain Interventions: duloxetine (all doses combined), milnacipran (all doses combined), mirtazapine (all doses…
1 finding from 1 review
no estimate extracted
26 participants
Moderate
Intervention not reported
Duloxetine standard dose RCTs: 16 Participants: 4490 · people with chronic pain Interventions: desvenlafaxine high dose (≥ 50 mg); duloxetine low dose (< 60 mg), standard dose (60 mg), and high…
1 finding from 1 review
no estimate extracted
16 participants
Moderate
Intervention not reported
Milnacipran RCTs: 5 Participants: 3109 · people with chronic pain Interventions: duloxetine (all doses combined), milnacipran (all doses combined), mirtazapine (all doses…
1 finding from 1 review
no estimate extracted
5 participants
Moderate
Intervention not reported
Total studies: 93 Total participants: 22,558 · people with chronic pain Interventions: amitriptyline standard dose (25‐75 mg); desvenlafaxine high dose (> 50 mg); duloxetine low dose (<…
The intervention led to lower total studies: 93 Total participants: 22,558; GRADE not reported.
1 finding from 1 review
no estimate extracted
93 participants
GRADE not reported
Intervention not reported
Desvenlafaxine high dose RCTs: 2 Participants: 905 · people with chronic pain Interventions: amitriptyline standard dose (25‐75 mg); desvenlafaxine high dose (> 50 mg); duloxetine low dose (<…
1 finding from 1 review
no estimate extracted
2 participants
Very low
Intervention not reported
Duloxetine standard dose RCTs: 20 Participants: 4998 · people with chronic pain Interventions: amitriptyline standard dose (25‐75 mg); desvenlafaxine high dose (> 50 mg); duloxetine low dose (<…
1 finding from 1 review
no estimate extracted
20 participants
Very low
Intervention not reported
Milnacipran standard dose RCTs: 8 Participants: 2491 · people with chronic pain Interventions: amitriptyline standard dose (25‐75 mg); desvenlafaxine high dose (> 50 mg); duloxetine low dose (<…
1 finding from 1 review
no estimate extracted
8 participants
Very low