Which drug is specifically indicated for treating relapsing forms of multiple sclerosis?

Glatiramer acetate is specifically indicated for treating relapsing forms of multiple sclerosis (MS). This medication works by mimicking the protective myelin sheath that surrounds nerve fibers, thereby acting as an immunomodulator. By doing so, it helps to reduce the frequency of relapses in individuals with relapsing MS. Glatiramer acetate modifies the autoimmune response that leads to the inflammatory process causing the neurological damage characteristic of MS.

In contrast, other options do not have a primary indication for treating relapsing forms of multiple sclerosis. Atropine is an anticholinergic used mainly for conditions such as bradycardia and to decrease salivation during surgery. Edrophonium is a rapid-acting acetylcholinesterase inhibitor used primarily in diagnosing myasthenia gravis. Interferon beta-1a, while it is also used in the treatment of relapsing MS, is more commonly associated with another class of medications for MS and not the focused emphasis on glatiramer acetate's unique mechanism and indication. Thus, glatiramer acetate stands out as a specific treatment for relapsing forms of MS.