| ACEI | Angiotensin converting enzyme inhibitor |
| AUC | Area under the curve |
| BID | Twice daily |
| Cmax | Plasma or milk concentration at peak |
| d | Day |
| et. al | "and others" |
| g | Grams |
| GI | Gastrointestinal |
| h | Hours |
| LRC | Lactation risk category |
| M/P | Milk/plasma ratio |
| MAOI | Monoamine oxidase inhibitors |
| mg/L | Milligram per liter |
| mL | Milliliter. One cc |
| mmol | Millimole of weight |
| MW | Molecular weight |
| ng/L | Nanogram per liter |
| NR | Not rated |
| NSAIDs | Nonsteroidal anti-inflammatory drug |
| Oral | Oral bioavailability (adult) |
| PB | Percent of protein binding in maternal circulation |
| pg | Picogram |
| PHL | Pediatric elimination half-life |
| PRN | As needed |
| QD | Daily |
| QID | Four times daily |
| RID | Relative infant dose |
| SNRIs | Serotonin norepinephrine reuptake inhibitors |
| SSRIs | Selective serotonin reuptake inhibitors |
| T½ | Adult elimination half-life |
| TCAs | Tricyclic antidepressants |
| TID | Three times daily |
| Tmax | Time to peak plasma level (PK) |
| Vd | Volume of distribution |
| X | Times |
| mCi | Millicurie of radioactivity |
| µCi | Microcurie of radioactivity |
| µg/L | Microgram per liter |
| µmol | Micromole of weight |
