Different formulations of the same drug occur, but on a quick check I found lidocaine creams and injections with either PEG or polysorbate 80. You have to check each formulation/manufacturer. With off patent drugs, and even with patented, you have to check the specific drug ingredients as currently produced. Formulations change over time.
Lidocaine: Different formulations of... - Allergic to Glycols
Lidocaine

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Shiloh1
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