Spring boarding off of the daypack help topic, which OTC meds do you find essential to have in a daypack first aid kit (or any kit for that matter) and for why?

Off the top of my head, I go with:

Benedryl- Allergic Reactions to foods, plants, insect bites

Acetaminophen (Tylenol)- Fever Reducer/Pain Killer

Aspirin - (reduces heart attack risk, maybe)/Pain Killer

Pepto-Bismol Chew Tablets- Nausea/Heartburn

Immodium AD - Anti-Diarrheatic

Neo-sporin - Anti-Biotic Wound Goo (I think I should patent that)

Saline Solution - Typically sold as nasal spray or contact cleaner, but good for sterile irrigation.

Any others you find indispensable?