Toward Ecosophy

Look up the literature on insulin and diabetic urinalysis. Up until about 1972 the medical journals published very detailed, precise descriptions of small scale insulin manufacture. Sadly there probably isn't enough demand in a rural village to support someone to do all the finicky steps. But in a small city, combined with keto/low carb diets and basic urinalysis to help guide the dosing, you can get enough low tech insulin from 1 large animal pancreas to keep many type-1 diabetics alive. Of course it is fairly allergenic over time and not as flexible as today's insulins but many type-1 diabetics managed decades on the stuff. I think it is worthwhile at least printing out a few recipes and preserving them for posterity. The Survivor Library also has a bunch of titles about low tech medical stuff including things like construction instructions for low tech prosthetics and mobility aids that would probably come in handy. Also think about putting away some early books about industrial recipes for low tech manufacture of chemicals including lab chemicals. You probably can't do that AND be the town's doctor and pharmacist but maybe you interest someone else when supplies get short.