What is a severe side effect associated with Ethambutol that requires monitoring during therapy?

Ethambutol is an antibiotic used primarily to treat tuberculosis, and one of its well-documented severe side effects is related to vision changes. Specifically, Ethambutol can lead to optic neuritis, which can manifest as changes in visual acuity or color vision and may result in permanent vision impairment if not promptly addressed. This is why regular monitoring of vision is critically important during treatment with this medication.

Visual monitoring is vital, enabling early detection of any potential side effects. If patients report symptoms like blurred vision or decreased color differentiation, healthcare providers can reevaluate the dosing or possibly discontinue the drug. In the context of tuberculosis treatment, this monitoring plays an essential role in balancing effective therapy against potential adverse effects that could significantly impact a patient’s quality of life.