However , mirtazapine showed effectiveness in treating depression , anxiety , sleep disorders , emesis and neuropathic pain .
Across all studies , mirtazapine is safe to use , with drowsiness and dizziness the most common side-effects .
Cancer patients often experience multiple distressing symptoms which are challenging to manage .
It would therefore be helpful to find a treatment that alleviates more than one symptom , to avoid polypharmacy : mirtazapine has been used in several studies for this purpose .
The objective of this study was to assess the effectiveness and safety of mirtazapine in alleviating one or more frequently encountered cancer-related symptoms .
GRADE guidelines: 3. Rating the quality of evidence.
This article introduces the approach of GRADE to rating  quality of evidence .  GRADE specifies four categories-high , moderate , low , and very low-that are applied to a body of evidence , not to individual studies . In the context of a systematic review , quality reflects our confidence that the estimates of the effect are correct . In the context of recommendations , quality reflects our confidence that the effect estimates are adequate to support a particular recommendation . R and omized trials begin as high- quality evidence , observational studies as low quality . " Quality " as used in GRADE means more than risk of bias and so may also be compromised by imprecision , inconsistency , indirectness of study results , and publication bias . In addition , several factors can increase our confidence in an estimate of effect . GRADE provides a systematic approach for considering and reporting each of these factors . GRADE separates the process of assessing quality of evidence from the process of making recommendations . Judgments about the strength of a recommendation depend on more than just the quality of evidence
However , mirtazapine showed effectiveness in treating depression , anxiety , sleep disorders , emesis and neuropathic pain .
Across all studies , mirtazapine is safe to use , with drowsiness and dizziness the most common side-effects .
Cancer patients often experience multiple distressing symptoms which are challenging to manage .
It would therefore be helpful to find a treatment that alleviates more than one symptom , to avoid polypharmacy : mirtazapine has been used in several studies for this purpose .
The objective of this study was to assess the effectiveness and safety of mirtazapine in alleviating one or more frequently encountered cancer-related symptoms .