| 5HT | serotonin | IM | intramuscular |
| ACH | acetylcholine | IV | intravenous |
| ACHE | acetylcholinesterase | LDL | low-density lipoprotein |
| ADHD | attention deficit hyperactivity disorder | LH | luteinizing hormone |
| ALT | alanine aminotransferase | Lb | pound |
| ALPT | total serum alkaline phosphatase | MAO | monoamine oxidase |
| AST | aspartate aminotransferase | MAOI | monoamine oxidase inhibitor |
| BID | twice a day | mCPP | meta-chloro-phenyl-piperazine |
| BMI | body mass index | mg | milligram |
| BuChE | butyrylcholinesterase | mL | milliliter |
| CMI | clomipramine | mm Hg | millimeters of mercury |
| CNS | central nervous system | MDD | major depressive disorder |
| CYP450 | cytochrome P450 | NE | norepinephrine |
| De-CMI | desmethyl-clomipramine | NMDA | N-methyl-d-aspartate |
| DA | dopamine | OCD | obsessive-compulsive disorder |
| dl | deciliter | ODV | O-desmethylvenlafaxine |
| DLB | dementia with Lewy bodies | PET | positron emission tomography |
| DPNP | diabetic peripheral neuropathic pain | PK | pharmacokinetic |
| ECG | electrocardiogram | PMDD | premenstrual dysphoric disorder |
| EEG | electroencephalogram | PMS | premenstrual syndrome |
| EKG | electrocardiogram | PTSD | posttraumatic stress disorder |
| EPS | extrapyramidal side effects | QD | once a day |
| ERT | estrogen replacement therapy | QHS | once a day at bedtime |
| FDA | Food and Drug Administration | QID | four times a day |
| FSH | follicle-stimulating hormone | RIMA | reversible inhibitor of monoamine oxidase A |
| GAD | generalized anxiety disorder | SNRI | dual serotonin and norepinephrine reuptake inhibitor |
| GI | gastrointestinal | SSRI | selective serotonin reuptake inhibitor |
| HDL | high-density lipoprotein | TCA | tricyclic antidepressant |
| HMG CoA | beta-hydroxy-beta-methylglutaryl Coenzyme A | TID | three times a day |
| HRT | hormone replacement therapy | TSH | thyroid stimulating hormone |