Answer
It is an uncommon blood disorder in which altered haemoglobin carries oxygen less effectively. Possible signs include blue-grey skin, breathlessness, tiredness or confusion.
Sources for this answer
- Prilotekal 20mg/ml solution for injection — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.