Wigobi Maunzaro pills? Injections? What are the side effects?

My mother was found to be overweight and obese during her medical checkup. I am very concerned because her obesity is persisting. She has a chronic condition of hyperlipidemia, and the increase in weight has worsened her back and knee pain, which is a major worry. She has already received knee cartilage injections due to severe knee pain, so exercising is currently difficult for her. Since the hospital recommended Wigobi Maunzaro, I am seriously considering it. However, my mother has chronic gastritis and a thin stomach lining, which significantly impairs her digestive function; I am very concerned about Wigobi Maunzaro because it is known to have severe gastrointestinal side effects. Therefore, I want to choose the one with fewer gastrointestinal side effects between the pills and the injections, and I would like to hear opinions from those who have actually taken them. If the injections have somewhat more severe side effects, would it be better to choose the pills? Do the pills generally have fewer side effects than the injections?