Table 5

Prescription errors by potential severity of error

Potential severity of errorExampleTotalFoundation Year 1 and 2All other prescribers
MinorSimvastatin prescribed in the morning rather than at night12943.14%6639.05%6348.46%
SignificantNo maximum frequency stated when paracetamol prescribed12441.47%7343.20%5139.23%
SeriousCo-amoxiclav prescribed to patient with known penicillin allergy4515.05%2917.16%1612.31%
Lethal500 mg of tacrolimus prescribed instead of 500 micrograms10.33%10.59%00.00%