Abbreviations for Dose Directions
| Abbreviation | Meaning |
|---|---|
| ӡ | Teaspoon or teaspoons |
| aa or āā | Of each |
| cc | Cubic centimeter, but 1 cc = 1 mL (mL is preferred over cc) |
| gtt | Drop (Latin for guttae, meaning drops) |
| i | 1 |
| ii | 2 |
| ss or s ̅s ̅ | One-half (writing out “one-half” or ½ is preferable) |
| t or tsp | Teaspoon or tablet (This abbreviation is confusing and dangerous and therefore should not be used.) |
| tbsp or T | Tablespoon |
| TKO or KVO | “To keep open,” “keep vein open” |