I want to be able to read my prescription, what are all those abbreviations?
| i | one | |
| ii | two | |
| iii | three | |
| iv | four | |
| po | Take by mouth | |
| QD | Take once a day | |
| BID | Take twice a day | |
| TID | Take three times a day | |
| QID | Take four times a day | |
| q12h | Take every 12 hours | |
| q4-6h | Take every 4 to 6 hours | |
| prn | As needed or if needed | |
| pc | After a meal | |
| ac | Before a meal | |
| as | Left ear | |
| ad | Right ear | |
| ou | Both eyes | |
| od | Right eye | |
| os | Left eye | |
| tsp | teaspoonful | |
| ml | milliliter |
