Below are links to generic medications that can be purchased for $4 per month and pharmacies in the area that offer them.
Target’s $4 Generic Drug List
WalMart’s $4 Prescription Program
WalMart’s $4 Over-the-Counter Medications
Walgreen’s Prescription Savings Club (requires membership fee of $20/year)

Medical Links
The Merck Manual – free access to a library of medical texts
DailyMed – package inserts for all FDA-approved drugs
MedPedia – a wikipedia for medicine
Visible Body – 3D anatomy of the human body
eMedicine – 6,500 articles about most medical conditions
WebMD – consumer medical information site