In todays population, heavy metal toxicity is ubiquitous, along with exposure to many other endogenous neurotoxic chemicals, which means that inevitably the biochemical individuality to deal with these toxins may be the major determinate of disease
Ruozi G, Bortolotti F, Falcione A, Dal Ferro, M Ukovich, et al
FAD is important for producing energy both from carbohydrates and through fatty-acid oxidation in the mitochondria.[ref] FAD is also involved in detoxification as a cofactor for some CYP450 enzymes, as well as for glutathione recycling
The medication may be increased as tolerated
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In most cases, a single use of recently expired medication is unlikely to cause harm, but the provider may recommend monitoring for reduced efficacy and ensuring future doses are within the expiration date