https://www.selleckchem.com/pr....oducts/calpeptin.htm
The objective of the present study was to carry out a systematic review with a meta-analysis to assess evidence about the use of guarana fruit to manage fatigue in cancer patients. The data were extracted from the EMBASE, Scopus, MEDLINE, CENTRAL, and CINAHL databases, in any language, using the descriptors "neoplasms" and "Paullinia" or "guarana powder" and "placebos" and "fatigue". Searches were also conducted to identify any grey literature. Clinical studies with patients who presented cancer-related fatigue as a primary outcome an