l carnitine with l citrulline L-Arginine L-Citrulline Complex 2250mg per serving Every 3 Source Naturals L-Arginine L-Citrulline Complex
Description
Use of prodrugs within the polymer backbone allows for high drug loading (5080%) in a reproducible manner[27]

Nkanga CI, Krause RWM

Another such example is Metformin , which is a medication for type 2 diabetes, which can also interfere with B12 absorption in the gut

DME was removed under reduced pressure, the remaining residue adjusted to pH 2 with aqueous 1 M HCl and extracted 3-times with ethyl acetate (EtOAc)