Flexeril Side Effects, Uses, Dosage, Overdose, Pregnancy, Alcohol
The generic form was first approved in 1977 and is sold in both immediate and extended release versions. Acute recovery phase of myocardial infarction, and patients with arrhythmias, heart block or conduction disturbances, or congestive heart failure. In order to protect against the rare but potentially critical manifestations described above, obtain an ECG and immediately initiate cardiac monitoring.
Study raises concerns about tablet splitting – EurekAlert
Study raises concerns about tablet splitting.
Posted: Tue, 18 May 2004 07:00:00 GMT [source]
Cyclobenzaprine caused slight to moderate increase in heart rate in animals. In the US – Call your doctor for medical advice about side effects. Take this medication by mouth with or without food as directed by your doctor. Do not increase your dose or use this drug more often or for longer than prescribed. Your condition will not improve any faster, and your risk of side effects will increase. Cyclobenzaprine is used short-term to treat muscle spasms.
At oral doses of up to 10 times the human dose, cyclobenzaprine did not adversely affect the reproductive performance or fertility of male or female rats. Cyclobenzaprine did not demonstrate mutagenic activity in the male mouse at dose levels of up to 20 times the human dose. Using cyclobenzaprine with other drugs that make you drowsy can worsen this effect. Ask your doctor before using opioid medication, a sleeping pill, a muscle relaxer, or medicine for anxiety or seizures. Older adults may be more sensitive to the side effects of this drug, especially drowsiness, confusion, constipation, or trouble urinating. Drowsiness and confusion can increase the risk of falling.
Cyclobenzaprine (Oral Route)
One study compared FLEXERIL 5 mg and 10 mg t.i.d. to placebo; and a second study compared FLEXERIL 5 mg and 2.5 mg t.i.d. to placebo. Primary endpoints for both trials were determined by patient-generated data and included global impression of change, medication helpfulness, and relief from starting backache. Each endpoint consisted of a score on a 5-point rating scale (from 0 or worst outcome to 4 or best outcome).
Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Do not take more or less of it or take it more often than prescribed by your doctor. The plasma concentration of cyclobenzaprine is increased in the elderly (see CLINICAL PHARMACOLOGY, Pharmacokinetics, Elderly).
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Due to the lack of data in subjects with more severe hepatic insufficiency, the use of FLEXERIL in subjects with moderate to severe impairment is not recommended. The overall incidence of adverse reactions among patients in the surveillance program was less than the incidence in the controlled clinical studies. Some medicines can interact with cyclobenzaprine and cause a serious condition called serotonin syndrome. Ask your doctor before making any changes in how or when you take your medications.
- Flexeril is usually taken once daily for only 2 or 3 weeks.
- Cyclobenzaprine relieves skeletal muscle spasms of local origin without interfering with muscle function.
However, it is only for short-term relief from acute muscle pain and other skeletal conditions. It works by directly reducing muscle hyperactivity and decreasing the transmission of pain. Clinicians should monitor for signs and symptoms of serotonin syndrome if the patient is taking other serotonergic drugs. In two case reports, the authors described patients who quickly developed serotonin syndrome after initiating cyclobenzaprine in the short term.
Cyclobenzaprine is a centrally acting skeletal muscle relaxant structurally related to tricyclic antidepressants. Cyclobenzaprine relieves skeletal muscle spasms of local origin without interfering with muscle function. In preclinical research, cyclobenzaprine reduced skeletal muscle hyperactivity. Research indicates that it primarily acts within the central nervous system in the brain stem. Signs of overdose include chest pain, hallucinations, vomiting, rapid heartbeat, slurred speech, difficulty breathing, and extreme drowsiness. The risk of overdose is significantly increased when Flexeril is combined with other drugs, particularly alcohol or Benzodiazepines.
The extended-release form typically has a half-life of hours. How cyclobenzaprine (Flexeril) works is not well understood, but it helps alleviate stiffness, pain, and discomfort due to sprains, strains, or injuries to muscles. It is also sometimes prescribed off-label to treat fibromyalgia pain. Examples of drugs that can cause interactions with cyclobenzaprine are listed below. Along with its needed effects, a medicine may cause some unwanted effects.
Cyclobenzaprine is used together with rest and physical therapy to treat skeletal muscle conditions such as pain or injury. Yes, cyclobenzaprine can make you very sleepy flexeril.live and this side effect may get worse with higher doses. Drowsiness is the most commonly reported side effect in studies, occurring in up to 38% (38 out of 100) of people.