system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A patient has subclinical folate deficiency. Which of the following drug cannot precipitate megaloblastic anemia in this patient?
assistant
The correct answer is  Megaloblastic anaemia can be caused by a deficiency of folic acid or vitamin B12. The drugs that can result in a deficiency of folic acid include:
B – B12 and folic acid deficiency
A – Alcohol
T – Trimethoprim
S – Sulfasalazine
M – Metformin
A – Antifolates (Methotrexate, pyrimethamine, proguanil)
N – N2O