Immunology
Methotrexate
Trexall
Generic nameMethotrexate
Brand nameTrexall
Medication classAntimetabolite immunomodulator
Typical adult example7.5–25 mg
FrequencyOnce weekly
Common uses
Recognition cues
- Rheumatoid arthritis
- Psoriasis
EMS relevance
Assessment context
- Weekly dosing errors can be dangerous; infection, marrow and liver toxicity are concerns.