l-carnitine supplement 500mg Acetyl-L-Carnitine 500 mg Veg Capsules L-Carnitine 500 mg, 60 Caplets

On the other hand, compounds that inhibit P-gp and/or multidrug resistance proteins (MRPs), including verapamil and quinidine, and the naturally occurring inhibitors flavonoids, coumarins, terpenoids, alkaloids, and saponins, among others, can promote the intracellular accumulation of methotrexate, thereby increasing the risk of toxicity [366,367]

Pharmacol Rev 62:155198

This modification is intended to protect the peptide from further enzymatic breakdown

Ultimately, the best approach is a combination of both

In people exposed to environmental toxins, such as heavy metals, pesticides, or air pollutants, adequate glutathione levels may help mitigate damage by facilitating toxin excretion