Appendix D5: Fatal Toxicity Index for Antidepressants

This toxicity index is in "deaths/1,000,000 prescriptions)".

Tricyclic Anti-depressants (TCA) developed before 1971

Name Toxicity Index
     

dibenzepin 158

desipramine (Norpramin) 80.2

dothiepin 50.0

amitriptyline (Elavil) 46.5

nortriptyline (Pamelor) 39.2

doxepin (Sinequan) 31.3

imipramine (Tofranil) 28.4

trimipramine (Surmontil) 27.6

opipramol 21.8

clomipramine (Anafranil) 11.1

protriptyline (Vivactil) 10.3

iprindole 7.8

average 38.5
     


   

Mono-amine oxidase inhibitors (MAOI)

   
     

tranylcypromine (Parnate) 58.1

phenelzine (Nardil) 22.8

isocarboxazid (Marplan) 12.8

iproniazid 0.0

average 26.7


   

non-TCA, developed after 1974

   
     

maprotiline (Ludiomil) 37.6

trazodone (Desyrel) 13.6

viloxazine 9.4

butriptyline 7.5

fluvoxamine (Floxyfral) 6.2

mianserin 5.6

nomifensine 2.5

lofepramine 0.0

fluoxetine (Prozac) 0.0

average 13.0

Source: "Fatal Toxicity Index for Antidepressants"; Henry J.A. Acta Psych Scand 1989 80 (SUPPL 354) PP 37-54.