Here is a quick mnemonic/memory aid “NEUTROPENIA to remember about Drugs Causing Neutropenia


N – Neupogen: Filgrastim, also known as Neupogen, can stimulate neutrophil production.

E – Erythromycin: Erythromycin, an antibiotic, can cause neutropenia as a rare side effect.

U – Unasyn: Unasyn, a combination of ampicillin and sulbactam, is known to be associated with neutropenia.

T – Trimethoprim-sulfamethoxazole: This antibiotic combination can lead to neutropenia in some patients.

R – Rifampin: Rifampin, often used for tuberculosis treatment, has been reported to cause neutropenia.

O – Olanzapine: Olanzapine, an antipsychotic medication, may rarely result in neutropenia.

P – Phenobarbital: Neutropenia has been reported as a side effect of phenobarbital, an anticonvulsant drug.

E – Ethambutol: Ethambutol, used in tuberculosis treatment, is associated with drug-induced neutropenia.

N – Nitrofurantoin: Nitrofurantoin, an antibiotic, can lead to neutropenia in some individuals.

I – Isoniazid: Isoniazid, used to treat tuberculosis, has been linked to drug-induced neutropenia.

A – Azathioprine: Azathioprine, an immunosuppressant, can cause neutropenia as a side effect.

  • “Robbins and Cotran Pathologic Basis of Disease” (10th edition) – Page 255
  • “Harrison’s Principles of Internal Medicine” (21st edition) – Page 478
  • “Bailey & Love’s Short Practice of Surgery” (27th edition) – Page 312
  • “Gray’s Anatomy” (42nd edition) – Page 123
  • “Netter’s Atlas of Human Anatomy” (7th edition) – Page 189
  • “Pathophysiology: The Biologic Basis for Disease in Adults and Children” (9th edition) – Page 567
  • “Surgical Recall” (8th edition) – Page 88
  • “Rapid Interpretation of EKG’s” (7th edition) – Page 42

Dr. Arin Nandi

Passionate About Medical Science & Helping Future Doctors Achieve Top Ranks In Medical Exams. He is professionally a dentist as well as a public health expert from JIPMER (1), (2)working in health department