| Drugs | |
| Anticonvulsant | Carbamazepine, valproate |
| Antimicrobial | Sulfonamides, penicillins, trimethoprim/sulfamethoxazole |
| Antipsychotic | Clozapine, olanzapine, phenothiazines |
| Antirheumatic | Gold, levamisole, penicillamine |
| Antithyroid | Methimazole, propylthiouracil |
| Other | Aminopyrine, deferiprone, rituximab, levamisole (adulterated cocaine) |
| Infections | |
| Viral | CMV, EBV, HIV, influenza, parvovirus B19 |
| Bacterial | Overwhelming sepsis (any organism), Anaplasma, Brucella, Ehrlichia, paratyphoid, Mycobacterium tuberculosis, tularemia, typhoid |
| Protozoan | Plasmodium sp. |
| Antibody | |
| Neonatal isoimmune |
| Drugs | |
| Anticonvulsant | Carbamazepine, valproate |
| Antimicrobial | Sulfonamides, penicillins, trimethoprim/sulfamethoxazole |
| Antipsychotic | Clozapine, olanzapine, phenothiazines |
| Antirheumatic | Gold, levamisole, penicillamine |
| Antithyroid | Methimazole, propylthiouracil |
| Other | Aminopyrine, deferiprone, rituximab, levamisole (adulterated cocaine) |
| Infections | |
| Viral | CMV, EBV, HIV, influenza, parvovirus B19 |
| Bacterial | Overwhelming sepsis (any organism), Anaplasma, Brucella, Ehrlichia, paratyphoid, Mycobacterium tuberculosis, tularemia, typhoid |
| Protozoan | Plasmodium sp. |
| Antibody | |
| Neonatal isoimmune |
CMV, Cytomegalovirus; EBV, Epstein-Barr virus; HIV, human immunodeficiency virus.