<s>[INST] Hi.  My wife has a cholestrol problem where I read that taking niacin and vitamin c may help to lower it.  She also has an infection in her mouth and was prescribed Amoxicillin to control it.  Q: Is there any negatives in taking these medications/vitamins or should she stop one of them until her infection has subsided??? [/INST] Hi,There is no harm taking these medicine during infection or with antibiotic you are taking.Vitamin C will help to recover fast from infection.Ok and take care. </s>