Not all drugs are bad and not all meds are addictive
I've not taken naltrexone but I'm on a butt load of prescription meds now - it is what it is - if I want a decent quality of life, I have to take them.
I think, if you're honest with your doctor about your past, and you've discussed all the options and they still think a particular med is right for you, you always have the right to take or refuse that advice.
I've come to trust my doctor and there hasn;t been a bad decision yet - but in the end it's up to you Chrissy.
D