Answer
Some recovery usually occurs after prompt withdrawal, but it may take weeks or months. Rarely, deterioration continues temporarily or damage is permanent.
Sources for this answer
- Ethambutol hydrochloride 400mg Film-coated tablets — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.