| USP DI | United States Pharmacopeial convention Dispensing Information |
|---|---|
| USP | United States Pharmacopeia |
| AU | according to custom [Lat. ad usum]; allergenic unit; ngstrom unit; antitoxin unit; arbitrary unit; A... |
| CCU | cardiac care unit; Cherry-Crandall unit; coronary care unit; critical care unit |
| MU | megaunit; mescaline unit; methyluric [acid]; Montevideo unit; motion unsharpness; motor unit; mouse ... |