Several classes of toxins can affect bone marrow. Benzene, a well-known industrial chemical, is particularly notorious for causing bone marrow suppression and leading to disorders like leukemia. Certain drugs, including nonsteroidal anti-inflammatory drugs (NSAIDs) and antibiotics like chloramphenicol, can also be bone marrow suppressants. Moreover, heavy metals such as lead and mercury are toxic to bone marrow and can disrupt hematopoiesis.