Some of you have even mentioned some things you can just buy off the pharmacy shelf. Remember, even those Flintstone's vitamins are drugs too. I picked just a couple of common medications that people may get for themselves or their kids. I know Amoxicillin is a prescription but I am sure it is very commonly used.
Tylenol- Bloody or black, tarry stools; bloody or cloudy urine; fever with or without chills (not present before treatment and not caused by the condition being treated); pain in lower back and/or side (severe and/or sharp); pinpoint red spots on skin; skin rash, hives, or itching; sores, ulcers, or white spots on lips or in mouth; sore throat (not present before treatment and not caused by the condition being treated); sudden decrease in amount of urine; unusual bleeding or bruising; unusual tiredness or weakness. Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); dark urine or pale stools; unusual fatigue; yellowing of the skin or eyes.
Ibuprofen/Motrin/Advil - Nausea, epigastric pain, heartburn, diarrhea, abdominal distress, nausea and vomiting, indigestion, constipation, abdominal cramps or pain, Dizziness, headache, nervousness, Depression, insomnia, confusion, emotional liability, somnolence, aseptic meningitis with fever and coma, Paresthesias, hallucinations, Syndrome of abdominal pain, fever, chills, nausea and vomiting
Amoxicillin - Reversible hyperactivity, agitation, anxiety, insomnia, confusion, convulsions, behavioral changes, and/or dizziness have been reported rarely. Dizziness, fatigue; insomnia; reversible hyperactivity, Urticaria; maculopapular to exfoliative dermatitis; vesicular eruptions; erythema multiforme; skin rashes, itchy eyes, glossitis; stomatitis; sore or dry mouth or tongue; black “hairy” tongue; abnormal taste sensation; laryngospasm; laryngeal edema. anorexia; nausea; vomiting; abdominal pain or cramps; epigastric distress; diarrhea or bloody diarrhea; rectal bleeding; flatulence; enterocolitis