Which therapy should really I select, Wegovy or Mounjaro? Wegovy and Mounjaro are both weekly injection pens and get the job done in comparable ways to assist weight-loss. Mounjaro has tested simpler in medical trials, as it works on GLP-one and GIP hormones, whereas Wegovy only works on GLP-1. However, Mounjaro is a new drugs in the UK so we don�