Is it possible that after taking Naltex for 2 months I lost 6 kg?

Yes, it is possible that after 2 months of taking Naltex you have lost 6 kg. Weight loss is an adverse drug reaction that is observed on average in 1 in 100 patients. Please note that side effects of medicines should be reported to your doctor or individually. By reporting side effects, you help other patients, including your loved ones, who may also need the same medicine one day. This step also allows you to gather more information on the safety of medicinal products and update data on them. We wrote about how to do this here: https://www.gdziepolek.pl/artykuly/jak-i-dlaczego-zglaszac-dzialania-niepozadane