Muscle Relaxants

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           Muscle Relaxants Whar are they, and what are they used for?

Muscle relaxants are drugs that relieve muscle spasms and other symptoms of chronic conditions such as multiple sclerosis or spinal cord injury. They work by blocking nerve impulses, thereby preventing the muscles from contracting. Muscle relaxants can be found in many different forms, including tablets, liquids, or rectal suppositories.

Muscle Relaxants are typically prescribed for patients with back pain, fibromyalgia, and multiple sclerosis who experience painful contractions of their muscles that may interfere with sleep or movement. Doctors may also prescribe them for people recovering from surgery or an accident involving broken bones or torn ligaments if they have difficulty moving around due to pain caused by stiffened joints and muscles.

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                  Muscle relaxants: types and mode of action.

You might be wondering what the different types of muscle relaxants are. There is much information that will help you know which ones would work best for customers’ needs.

There are two main categories: benzodiazepines and  nonbenzodiazepines . Benzodiazepine medications include Diazepam, clorazepate, lorazepam, clonazepam and alprazolam while Non-benzodiazepine medications include Carisoprodol , Cyclobenzaprine, Tizanidine or Zolpidem.

Benzodiazepines bind to GABA receptors in the brain, which results in increased inhibition at synapses, thereby decreasing neuronal excitability. Benzodiazepines can be administered orally or intravenously and have an onset time of about one hour, with peak effects lasting up to six hours. Benzodiazepine mode of action is not fully understood, but it appears that they act on neurotransmitter systems throughout the body by enhancing gamma-aminobutyric acid (GABA) inhibitory activities. This leads to calmed nerves, relaxed muscles, and relief of symptoms.

Non-benzodiazepines are psychoactive drugs that bind to the same receptor sites as benzodiazepines but with different binding properties. They are more effective than placebo and equally as effective as a benzodiazepine for treating insomnia and anxiety disorders. Non-Benzodiazepine modes of action include GABAergic, Zolpidem, Gabapentinoidi, Melatoninergic receptors etc.

Muscle Relaxants: side effects and risk involved

The use of muscle relaxers is not without its risks. Muscle relaxants affect the central nervous system, leading to impaired judgment and coordination, drowsiness, and reduced muscle reflexes. Individuals currently taking muscle relaxants should not operate heavy machinery or drive a vehicle. Additionally, they should avoid drinking alcohol while taking these medications.

The most common side effects of using Benzodiazepines include drowsiness, depression, hypomania, decreased libido, impaired motor skills, memory difficulties, and dizziness. These medications can also affect your breathing rate or heart rate. If you’re taking any other medicines for conditions like high blood pressure or high cholesterol- please consult with your doctor before taking these medications. Some severe side effects include Blurred vision, fainting, confusion, and urinary retention.

Qualitative and Quantitative dosage form Diazepam


  • 2mg contains 2mg diazepam per tablet.
  • 5mg contains 5mg diazepam per tablet.
  • 10mg contains 10mg diazepam per tablet.

Oral solution

  • 1mg/1ml contains 1mg diazepam per ml oral solution.
  • 5mg/ml contains 5mg diazepam per ml oral solution.

Rectal gel

  • 5mg contains 2.5mg diazepam per ml rectal gel.
  • 10mg contains 10mg diazepam per ml rectal gel.
  • 20mg contains 20mg diazepam per ml rectal gel.

Injectable solution

  • 5mg/ml contains 5mg diazepam per injectable solution.



  • 5mg contains 5mg Cyclobenzaprine per tablet.
  • 5mg contains 7.5mg Cyclobenzaprine per tablet.
  • 10mg contains 10mg Cyclobenzaprine per tablet.

Extended-release capsule

  • 15mg contains 15mg Cyclobenzaprine per Extended-release capsule.
  • 710mg contains 10mg Cyclobenzaprine per Extended-release capsule.

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