Mechlorethamine hydrochloride (NM) was purchased from Sigma‐Aldrich (St. Louis, MO, USA). Methylene blue (MB) was purchased from Thermo Fisher Scientific (Fair Lawn, NJ, USA). Lanolin (C10‐30 cholesterol/lanosterol esters) and polyethylene glycol 400 were gifted from Croda Inc. (Edison, NJ, USA). NDH‐4338, a cyclooxygenase, inducible nitric oxide synthase, and acetylcholinesterase inhibitor prodrug, was synthesized as described.28 Ultrapure water (Milli‐Q® Advantage A10®, Type 1 water, MilliporeSigma, Burlington, MA, USA, water) was used throughout the study.