Earlier this month in New Zealand, a man died from a preventable and accidental overdose of rheumatoid arthritis medication, a doctor’s error that went undetected by the pharmacist who filled the prescription. According to a report by a local New Zealand news source, the man had been diagnosed with rheumatoid arthritis for 20 years and had been on this exact medication previously. However, he had to be taken off the medication when his liver function started to decrease. Since then, he had been re-prescribed the medication after his liver function returned to normal.
Evidently, the prescribing doctor made the first mistake, prescribing the medication to be taken daily rather than weekly as it should have been prescribed. When the man took the prescription to his local pharmacy, the pharmacist transcribed the prescription exactly as the doctor wrote it, instructing the man to take the medication daily.
Shortly after he began taking the medication, he noticed severe adverse side effects, such as mouth ulcers, a sore throat, and an abnormal blood count. When he went to have his symptoms checked out, he was diagnosed with methotrexate toxicity, a result of an overdose of the rheumatoid arthritis medication.