What is the mechanism of action for muscle relaxants like Robaxin?

Muscle relaxants like Robaxin primarily work by causing relaxation of skeletal muscle. This is achieved through their action on the central nervous system, which helps to reduce the tone of skeletal muscle, alleviate muscle spasms, and improve mobility and comfort in patients experiencing conditions associated with muscle tightness or spasms.

Robaxin, specifically, acts as an antidote to the underlying muscle tension, making it easier for patients to engage in physical therapy and rehabilitation. This mechanism is particularly important in the treatment of acute musculoskeletal pain and conditions like back pain, where muscle spasms often contribute to discomfort and limitation in movement.

The other options focus on mechanisms that are not relevant to Robaxin's function. Antiviral properties pertain to drugs targeting viral infections; reduction of inflammation is typically associated with anti-inflammatory drugs, and stimulation of appetite does not relate to muscle relaxation but rather to appetite-enhancing medications. Thus, the accurate description of Robaxin's action lies in its ability to promote skeletal muscle relaxation.