Final answer:
Disease-modifying therapies (DMTs) reduce accumulation of plaques and disability in patients with relapsing remitting MS by reducing relapses, slowing progression, and lowering plaque numbers. One example is interferon-beta.
Step-by-step explanation:
The medication that reduces the accumulation of plaques and disability in patients with relapsing remitting MS is disease-modifying therapies (DMTs). DMTs work by reducing the frequency and severity of relapses, slowing the progression of disability, and lowering the number and size of plaques in the brain and spinal cord.
One example of a DMT commonly used in the treatment of relapsing remitting MS is interferon-beta. Interferon-beta helps regulate the immune system and reduces inflammation, which can help prevent new lesions from forming.
It is important for patients with relapsing remitting MS to work closely with their healthcare provider to determine the most appropriate DMT based on their individual needs and disease characteristics.