Comment Re: Backpedalled? (Score 1) 740
It sounds like you're just allergic to the excipient (aka the stuff used to bind a drug into a pill) and not the *cillin itself. So if you were to take, say, amoxicillin in liquid form I'm guessing you'd be fine--no puking. So if you've taken amoxicillin in the past and had serious nausea/vomiting as a result I'd investigate the following inactive ingredients:
From: https://www.medicines.org.uk/e...
Magnesium Stearate (E572)
Silica Colloidal Anhydrous
Capsule shell components:
Body:
Iron Oxide Red (E172)
Iron Oxide Yellow (E172)
Titanium Dioxide (El71)
To 100% Gelatin
Cap:
Indigo Carmine (E132)
Erythrosine (E127)
Titanium Dioxide (E171)
To 100% Gelatin
Composition of Ink
Shellac
Dehydrated Alcohol
Isopropyl Alcohol
Butyl Alcohol
Propylene Glycol
Strong Ammonia Solution
Potassium Hydroxide
Black Iron Oxide (E172)
My money is on magnesium stearate (the white stuff pills are made out of)... It's made from various animal products and vegetable oil. I have no idea how pure it has to be for pill manufacture but I wouldn't be surprised if just a trace amount of something you're severely allergic to (in your gut anyway) could set off the vomit storm.
It could also be a combination of things that your gut just doesn't like to be together. For example, if you ate some rust (iron oxide) combined with shellac that might invoke a response related to a bad (gut) experience you had as a child when you ate a bug that crawled out of a rusty old metal thing.