my sister is suffering from multiple sclerosis (diagnosed 3 years ago) and even though she isn’t in too much pain overall, she is prescribed Vicodin to use as needed for the pain. However, I have a feeling she is suffering much more pain than she wants to admit because she is too scared she’ll get addicted to Vicodin. That’s why I’m looking online for alternatives to opioid painkillers that would be as effective, and there is a large group of people who is using Low Dose Naltrexone - an opiate blocker with a success in so many conditions, from MS to psoriasis. What I’m wondering now is how would Low Dose Naltrexone affect my sister since she has been using Vicodin?