Issue: OCTOBER 2021
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can lead to worse dizziness and potential coma or death.
one is feeling depressed, they should talk to a doctor.
Fatigue Or Drowsiness
Reduced Blood Pressure
Fatigue and drowsiness are also common side effects of a muscle relaxer that works on the central nervous system. This is another reason individuals shouldn’t drive or do potentially dangerous activities until they’re aware of how they affect them. Some patients might find muscle relaxers make them fall Reviewed by Tenby, Michael MD asleep much more quickly than trying to sleep withMuscle relaxers, also called muscle relaxants, are a out these medications. Individuals, of course, shouldtype of medication used to treat muscle spasticity n’t take these medications with alcohol, as if they do, or muscle spasms. Muscle cramps and spasms occur the fatigue they cause can be just the start of a powhen there are sudden and involuntary contractions tentially life-threatening reaction. If patients find of a group of muscles or singular muscle. Some musthe fatigue they’re experiencing is interfering with cle spasms are caused by excess muscle strain, and their daily life, they should talk to a doctor about while some cramps can be caused by temporary alternative options for treatment. It’s important not muscle fatigue, they can also be caused to combine muscle relaxers with sleeping medicaby chronic conditions. Neck pain, lower back pain, tions or depressant drugs like opioids. Individuals and fibromyalgia all tend to present with cramping. also shouldn’t use them with St. John’s wort or other Muscle spasticity occurs when a muscle continuously similar herbal supplements. Patients who have liver spasms to the point of tightness, rigidity, or stiffness. problems, who have a neurological disorder This condition can interfere with normal movement, or mental health issue, or who are older than sixtytalking, or walking. It is caused by conditions that five, should talk to their doctor about how to safely injure the brain or spinal cord. Muscle relaxers are mitigate the effects of muscle relaxers. often necessary to treat these conditions, but it’s important to know the side effects to watch out for. Depression
Depending on the drug and the way it works within the body, individuals might experience reduced blood pressure as a result of muscle relaxants. This isn’t always a bad thing, especially if patients had slightly elevated blood pressure to begin with. However, if they already take medication to lower their blood pressure, it may interact with the relaxant and cause their blood pressure to become too low. Low blood pressure is defined as any reading lower than 90/60, but the ideal blood pressure is 120/80. When blood pressure is low on a long-term basis, it’s usually not cause for concern, as naturally low blood pressure doesn’t tend to cause symptoms. However, when an individual’s blood pressure drops suddenly, it can cause their brain to be deprived of oxygen because it isn’t getting adequate blood supply. A sudden blood pressure drop happens most often when individuals get up from a seated position or sit up after laying down. When this happens, individuals might suddenly feel dizzy and faint. Some also experience low blood pressure if they stand for long periods.
Any muscle relaxant individuals take will have some side effects, especially if it acts on the central nervDizziness is a common side effect of centrally acting ous system. Depression is a common side effect of skeletal muscle relaxants (SMRs). A centrally acting muscle relaxers. The symptoms will typically go away SMR is prescribed alongside physical therapy and once patients stop taking the relaxer or lower their rest to help with muscle spasm relief. They act on dose. Many muscle relaxers work by inhibiting the the central nervous system by creating a sedating central nervous system function. This helps relieve effect or preventing the nerves from transmitting the pain from muscle spasms and spasticity by keeppain signals to the brain. Because the effects of longing individuals from feeling it as fully. However, it term use aren’t proven, patients shouldn’t use these can also cause their emotions to feel blunted and for longer than two to three weeks. Patients experithoughts to feel sluggish and slow. Clinical depresencing dizziness might have trouble keeping their sion occurs when individuals feel intensely sad or balance and get suddenly lightheaded when they empty in ways that interfere in day-to-day life. To stand up. Though dizziness isn’t always a sign of a receive an official diagnosis of major depression, serious problem, patients should talk to a doctor if these feelings must continue for at least two weeks. it’s interfering with their day-to-day life. They also Many patients with clinical depression feel worthshouldn’t drive a car or do other potentially dangerless, helpless, and hopeless. They may lose interest ous tasks until they’re aware of how the medication in their plans for the future, stop connecting with affects them. Individuals shouldn’t take muscle relaxtheir friends and family, and struggle to enjoy activiants with alcohol or other CNS depressants, as this ties that previously brought them pleasure. If some-
Muscle weakness is a common side effect of muscle relaxers. In most cases, this isn’t cause for concern. Different muscle relaxers may cause different levels of potential weakness. As they ease muscle spasms or muscle spasticity, they may make it difficult for the muscle to contract fully, which leads the muscle to be unable to support the same weight it usually can, otherwise known as muscle weakness. Mild muscle weakness is an expected part of muscle relaxers. However, if the muscle weakness is serious enough to impair a patient’s mobility or day-to-day activities, they should talk to their doctor. Patients should also talk to their doctor if they feel like the weakness is accompanied by other muscle symptoms like pain and fatigue. Some muscle weakness is expected, especially when treating muscle spasticity. To reduce spasticity, the drugs have to reduce the muscle’s ability to contract.
Dizziness
Muscle Weakness