Pharmacology A patient who was given primaquine develops dark coloured urine one day after administration of the drug. The likely diagnosis is – A Glucose-6-phosphate dehydrogenase deficiency B Glucose-6-phosphate deficiency C Galactose-6-phosphate dehydrogenase deficiency D Galactose-6-phosphataase deficiency 💡 Explanation A patient who was given primaquine develops dark coloured urine one day after administration of the drug. The likely diagnosis is - ✓ Correct Answer: A. Glucose-6-phosphate dehydrogenase deficiency