Doc says the generic is dangerous. Doesn't give me much confidence in the med. Aren't generics usually pretty close to the original.
A generic is, by definition, the same drug as the branded version. For example, advil is a brand name, but ibuprofen is the actual drug. You could buy a box of advil for $5, or you could buy a box of generic ibuprofen for $.25. They both contain the same number of tablets, each tablet containing the same amount of the same active ingredient. All that may be different, is the type of filler used, the shape of the tablet, and flavorings, easy-swallow coatings, etc.
In the overwhelming majority of cases, the generic is medically identical to the branded.
However, there are a few cases where there are differences:
Some drugs, like the very powerful immune system suppressor, ciclosporin. For complex reasons, the absorption of ciclosporin depends dramatically on what it is dissolved in - oil, water, or other solvent, and whether it is taken as a liquid (or taken as a liquid filled capsule - which dissolves after a delay). There are several brand names, and generics of this drug, and they all give radically different blood levels for what is, on the label, the same dose.
Some drugs are specially forumalated with time-delayed release. E.g. some blood pressure or pain drugs need to be taken 4x a day, because they get excreted quickly. This is inconvenient,so manufacturers have developed special tablets that take 24 hours to dissolve, and release the drug at a controlled rate. Often, this slow-release technology is proprietary and specific to the drug - and generic manufacturers may not have the same, or equivalent slow-release mechanisms.