^^ yup. Eitherway Ive taken addy for years(legit script) and ive only heard of XR (extended release) and IR(instant release) and ive taken both. If you have a bunch (and considering you didnt tell us ur weight/height) I would take one pill and see where to go from there.
The only time I find addy recreational is if i plan on playing games or cleaning or all day. Some people take it and then go clubbing or such. Amps can give u a huge tolerance for alcohol and bud, for obvious reasons.