Dr. Melton: To me, the term “mucoadhesive” translates into a drop that might blur vision. Yet, if you look at the two Phase III studies, zero patients out of 203 in the first study and zero patients out of 206 in the second study had drug-related blurred vision, and that's on the active drug, which is pretty remarkable. 3–5 This has clinically been supported by my own experience putting patients on LE gel and not getting any negative feedback regarding blurred vision. It's a pretty viscous, mucoadhesive drop, and because of its adaptive viscosity characteristics, it is unique as a gel.
Heavy consumption of the essential amino acid lysine (as indicated in the treatment of cold sores) has allegedly shown false positives in some and was cited by American shotputter C. J. Hunter as the reason for his positive test, though in 2004 he admitted to a federal grand jury that he had injected nandrolone.  A possible cause of incorrect urine test results is the presence of metabolites from other AAS, though modern urinalysis can usually determine the exact steroid used by analyzing the ratio of the two remaining nandrolone metabolites. As a result of the numerous overturned verdicts, the testing procedure was reviewed by UK Sport . On October 5, 2007, three-time Olympic gold medalist for track and field Marion Jones admitted to use of the drug, and was sentenced to six months in jail for lying to a federal grand jury in 2000.