| Tricyclics (tertiary)§ |
| Amitriptyline (Elavil) | D | None | 75 to 300 | $ 29 (3 to 5) |
| Clomipramine (Anafranil) | C | None | 75 to 300 | 45 (37 to 40) |
| Doxepin (Sinequan) | C | Apnea, drowsiness | 75 to 300 | 32 (9 to 13) |
| Imipramine (Tofranil) | D | None | 75 to 300 | 42 (3 to 10) |
| Trimipramine (Surmontil) | C | NA | 75 to 300 | 65 for 25-mg tablets |
| Tricyclics (secondary)§ |
| Amoxapine (Asendin) | C | NA | 100 to 600 | 65 (41 to 50) |
| Desipramine (Norpramin) | C | None | 75 to 300 | 47 (18 to 22) |
| Nortriptyline (Pamelor) | D | None | 50 to 200 | 57 (37 to 45) |
| Protriptyline (Vivactil) | C | NA | 20 to 60 | 42 (34 to 37) |
| Miscellaneous |
| Bupropion (Wellbutrin) | B | None | 225 to 450 | 62 for 75-mg tablets; 83 for 100-mg tablets |
| Maprotiline (Ludiomil) | B | NA | 100 to 225 | 43 (32 to 33) |
| Mirtazapine (Remeron) | C | NA | 15 to 45 | 59 |
| Nefazodone (Serzone) | C | NA | 300 to 600 | 58 |
| Trazodone (Desyrel) | C | NA | 150 to 600 | 115 (21 to 32) |
| Venlafaxine (Effexor) | C | NA | 75 to 225 | 34 |
| Selective serotonin reuptake inhibitors§¶ |
| Fluoxetine (Prozac) | C | Gastrointestinal effects, irritability, insomnia | 10 to 40 | 71 |
| Fluvoxamine (Luvox)∥ | C | NA | 100 to 300 | 64 |
| Paroxetine (Paxil) | C | NA | 20 to 50 | 62 |
| Sertraline (Zoloft) | C | None | 50 to 150 | 65 |
| Monoamine oxidase inhibitors |
| Phenelzine (Nardil) | C | NA | 45 to 90 | 38 |
| Tranylcypromine (Parnate) | C | NA | 20 to 60 | 30 |
| Mood stabilizers |
| Lithium | D | Lithium toxicity | 900 to 1,200 | 8 (2 to 7) |