Endocrine, nutritional, and metabolic diseases (E00-E90).
- Hypothyroidism (underactive thyroid gland).
- Resorption disorders of vitamins B6, B12 and folic acid.
Skin and subcutaneous (L00-L99)
- Psoriasis (psoriasis)
Neoplasms – tumor diseases (C00-D48)
- Leukemia (blood cancer)
Genitourinary system (kidneys, urinary tract – reproductive organs) (N00-N99).
- Renal insufficiency (kidney weakness).
Medication
- Antiepileptic drugs – medications taken to treat epileptic seizures such as carbamaceptin or phenytoin.
- Isoniazid (antituberculostat) – drug used in the treatment of tuberculosis.
- Laughing gas (nitrous oxide) – is used in anesthesia for the induction and management of anesthesia (now increasingly rare).
- Methotrexate (cytostatic) – analogue of folic acid (vitamin B9); it inhibits as a folic acid antagonist competitively and reversibly the enzyme dihydrofolate reductase (DHFR).
