“…This was supported by Shoji et al., who demonstrated that renal function (measured as creatinine clearance) was a clinically influential covariate on CL/F in healthy individuals, patients with impaired renal function, patients with post‐herpetic neuralgia or diabetic neuropathy. Recently, a case report was published on pregabalin assay in a patient with widespread neuropathic pain and late‐onset gluten intolerance . In coeliac disease, there are a number of changes in the gut that could affect drug exposure, for example, rate of gastric emptying, intraluminal pH changes and stunted small intestinal villi.…”