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The FDA advises against using expired medications, as there is no reliable way to determine remaining potency without laboratory testing

In some embodiments, the auris-acceptable penetration enhancer is a surfactant comprising an alkyl-glycoside wherein the alkyl-glycoside comprises a sugar linked to a hydrophobic alkyl (e.g., an alkyl comprising about 6 to about 25 carbon atoms) by an amide linkage, an amine linkage, a carbamate linkage, an ether linkage, a thioether linkage, an ester linkage, a thioester linkage, a glycosidic linkage, a thioglycosidic linkage, and/or a ureide linkage

Long-term use requires periodic blood testing to monitor copper levels

It acts as a barrier to protect the body from invasion by bacteria and other possible environmental hazards that can be dangerous to human health