<s>[INST] Hello I am a male 63 years old. I take blood pressure meduicine and this controls my blood pressure, I have taken for 20 years, I now also take statins and had problem with Simvastatin with muscle loss and now since December 2017 take Rosuvastatin. This has reduced the cholesterol but I alsways seem to have an upset stomach. Can this drug cause this as a side affect? [/INST] Hello, Rosuvastatin may cause stomach upset with nausea and abdominal pain, so it may be that the symptoms you are experiencing are due to Rosuvastatin use. On the other hand, it is important to report these symptoms to your doctors as it may also cause pancreatitis, which may present with similar symptoms. I hope this answers your query. I remain at your disposal in case further medical assistance is needed.   </s>