What supportive measure is often essential for patients on long-term INH therapy?

The selection of regular monitoring for side effects as a supportive measure for patients on long-term isoniazid (INH) therapy is crucial due to the potential toxicities associated with the drug. INH can lead to various side effects, including hepatotoxicity, peripheral neuropathy, and vitamin B6 (pyridoxine) deficiency. Regular monitoring allows healthcare providers to detect any adverse effects early, enabling timely interventions that could include dose adjustments, the addition of supplements like vitamin B6, or even discontinuation of the medication if necessary.

This proactive approach ensures that patients remain on effective treatment for tuberculosis while minimizing risks to their overall health. It fosters a collaborative relationship between patients and healthcare providers, where patients are encouraged to report any unusual symptoms they experience, further enhancing safety during treatment.

The other options do not align with the standard supportive measures in managing patients undergoing long-term INH therapy. Complete isolation from others is generally unnecessary and could lead to feelings of loneliness or depression. Increased exercise routines, while generally beneficial, are not a specific requirement for patients on INH therapy. Lastly, the use of alternative medications could complicate treatment regimens and is not a recommended supportive measure unless alternative therapies are clinically indicated under supervision.