Learn about spinal muscular atrophy: causes, symptoms, and treatment options for patients and caregivers seeking reliable medical information.

Metaxalone is a muscle relaxer used to relieve pain and discomfort caused by musculoskeletal conditions. Learn more about metaxalone.

Baclofen is a skeletal muscle relaxant used to treat muscle stiffness and reduce muscle spasticity. Find out more about baclofen uses, dosage, and side effects.

Amyotrophic lateral sclerosis (ALS), previously called Lou Gehrig’s disease, is a motor neuron disease. Learn more about ALS symptoms.

Myasthenia gravis is an autoimmune disease and neuromuscular disorder that attacks the neuromuscular junction. Learn more about myasthenia gravis causes, symptoms, and treatments.

Dystonia is a complex neurological movement disorder characterized by involuntary muscle contractions. Learn more about the forms of dystonia, what can cause it, and options for treating dystonia.

Certain medications can cause drug-induced myopathy (muscle disease). Learn about some of the medicines that can cause muscle weakness as a side effect.

Up to half of all patients taking antipsychotic medications experience tardive dyskinesia. However, other medications can also cause this condition.