I am asking is there is quite a differenc in price. naltrexone is in pill and vivitrol is in once a month injection, I am taking vivitrol injection once a month got my fifth shot jan. 4th . I am doing great
The pill has been around for years and is in generic, or even the regular shot. Vivitrol is a special prep that keeps it there over a period of time. It was developed by one company who holds the patent on it. So besides costing more to produce, they have no competition right now.
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