Muscle relaxants are prescription medications that affect the function of muscles and the nerves in the central nervous system. Although generally regarded as safe, muscle relaxants can cause side effects including sleepiness, vision problems and may become addictive.
Muscle relaxants are given to patients who are experiencing pain and discomfort due to stiffness, sprains, strains or other muscle injury. They are generally used temporarily as part of a rehabilitation program. Muscle relaxants work by altering the signals in the central nervous system and this affect causes the bulk of the side effects.
Most of the side effects caused by muscle relaxants are not serious for most people and will go away when you stop taking them. Common ones include: drowsiness, light-headedness or dizziness, or changes in vision. More serious side effects include swelling, irregular breathing, sore throat, chills and unusual bleeding or bruising.
For those with colitis, some of the adverse side effects of muscle relaxants aggravate symptoms caused by their condition. These effects include nausea, stomach cramps or pain, diarrhea, constipation, and black, bloody or tarry stool. Some of these side effects may decrease over time or may go away after you have ceased taking the medication.
Some muscle relaxants even can cause bradycardia. Bradycardia is a condition that occurs when the heart rate drops to under 60 beats per minute. Bradycardia causes fainting, weakness, fatigue, chest discomfort and shortness of breath. Reading the labels on medications prior to use can prepare patients for any side effects.
Suxamethonium chloride is an odorless muscle relaxant. This drug is used in anesthesia, intensive care and emergency rooms. Suxamethonium chloride is used when a complete paralysis of the body is needed for surgery, intubation or other emergency procedure. An injection of 1.0 to 1.5 mg per kg of body weight causes paralysis within a minute. An injection of 2.0 mg per kg for children causes immediate paralysis. Suxamethonium causes side effects, such as bradycardia, muscle pains, hypertension and cardiac arrest.
1,3-Dimethoxy benzene, with the molecular formula C6H4(OCH3)2, is another one among the muscle relaxants that cause bradycardia. This medication is also used as a sedative. 1,3-Dimethoxy benzene(CAS: 151-10-0) is used in emergency rooms and intensive care units. The drug is administered through an I.V. Fentanyl acts as a semisynthetic. Among the side effects of fentanyl are physical dependence, rigid chest and respiratory problems.
Midazolam is a muscle relaxant used in emergency and critical care rooms. If you’re using anesthetics, cimetidine or narcotics, the midazolam dose should be reduced by 25 percent. Midazolam includes side effects, such as bradycardia, respiratory problems and hypotension.
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