The commonly used muscarinic drugs in the clinic are Eperisone tablets, which are called Myona, or Tizanidine Hydrochloride tablets. The above two muscarinic drugs are commonly used in the clinic, usually used in lumbar muscle strain, lumbar sprain, lumbar vertebrae fracture caused by the early lumbar back muscle spasm, pain, and sometimes can be applied to lumbar disc herniation, lumbar vertebrae tumor, tuberculosis caused by the back pain, muscle tension. The clinical side effects of Eperisone Tablets are relatively small, the regular use of the usage, 1 tablet / time, 2-3 times / day, the dosage cycle for 1-2 weeks. And tizanidine hydrochloride tablets use different specifications, the dosage is not the same. However, according to the clinical use of the drug found that the side effects of tizanidine hydrochloride tablets are relatively more, especially nausea, vomiting, dizziness and other adverse reactions are relatively more common. After taking the above two muscarinic drugs in the clinic, you should avoid high altitude work or driving and other behaviors.