<s>[INST] Have mild/moderate MVP and have been taking Ramipril 2.5mg with adverse effects. Am now trying Losartan Potassium 50mg and am concerned that on the leaflet with the drug comes a warning to tell your doctor (he prescribed) if you have problems with MVP. What does this mean? [/INST] There is no clearcut evidence of MVP by Losartan. In some studies mvp was found in patients taking Losartan but it was most probably coincidence. so I think it should not be a matter of worry. </s>