No clue how helpful it'd be, but I'd recommend it to anyone needing to be prepped for the SHTF medical supplies: Pharmacopoeia pocket books. I found one at the hospital I worked at in the parking lot, and it contained lots of information on how to make various drugs using basic tools. It also had a long list of alternatives to big name drugs with homebrewed ones. Tarascon was the one who did this one in particular.