Cyclobenzaprine Uses, Dosage & Side Effects
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 flexeril pregnancy category 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.
- This medication should only be used short-term (for 3 weeks or less) unless directed by your doctor.
- If you cannot swallow the capsule whole, you may open the capsule and sprinkle the contents over one tablespoon of applesauce.
- If signs of toxicity occur at any time during this period, extended monitoring is required.
- These drugs are often used to treat similar conditions.
- In light of these findings, therapy with FLEXERIL in the elderly should be initiated with a 5 mg dose and titrated slowly upward.
The maximum recommended dose per day is 30 milligrams. The extended-release formulation should be administered at the same time each day. The capsule may be swallowed whole, but its contents also may be sprinkled onto a tablespoon of applesauce for immediate consumption without chewing the granules. The patient should rinse their mouth to ensure that they have swallowed all the contents. The efficacy of FLEXERIL 5 mg was demonstrated in two seven-day, double-blind, controlled clinical trials enrolling 1405 patients.
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.
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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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).
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.
Flexeril Addiction And Abuse – Addiction Center
Flexeril Addiction And Abuse.
Posted: Mon, 17 Apr 2023 07:00:00 GMT [source]
This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. Data sources include IBM Watson Micromedex (updated 3 Sep 2023), Cerner Multum™ (updated 28 Aug 2023), ASHP (updated 10 Aug 2023) and others. Cyclobenzaprine usually begins working about one hourafter it is ingested, relaxing muscles and relieving muscle spasms. Formulations include immediate-release and extended-release. If you are prescribed cyclobenzaprine, follow your healthcare provider’s directions for how to take it.
Overall rating for Cyclobenzaprine (Flexeril)
It is not an anti-inflammatory drug and does not reduce any inflammation to provide muscle relief. Both of them are used for pain relief but have different mechanisms. In most cases, it is advised not to take an anti-inflammatory drug and a muscle relaxant simultaneously, as they might be contra-indicated.
It can also enhance the effects of agents with CNS depressant activity. Older adults appear to have a higher risk for CNS-related adverse reactions, such as hallucinations and confusion, when using cyclobenzaprine. Withdrawal symptoms have been noted with the discontinuation of chronic cyclobenzaprine use.
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.