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Orphenadrine
Generic name: orphenadrine
Brand names: Norflex, Banflex, Orphenate, Flexoject, Flexon, Mio-Rel, Myolin, Orfro, Norflex Injectable, Antiflex
What is orphenadrine?
Orphenadrine is a muscle relaxer.
Orphenadrine is used along with rest and physical therapy to treat skeletal muscle conditions like pain or injury.
Orphenadrine may also be used for reasons not mentioned in this medication guide.
This section was rewritten for readability and reviewed for meaning.
How should I take orphenadrine?
Follow all directions on your prescription label. Do not take orphenadrine in larger or smaller amounts or for longer than recommended.
Orphenadrine may be habit-forming. Never share orphenadrine with another person, especially someone with a history of drug abuse or addiction. Keep the medication in a place where others cannot get to it. Selling or giving away this medicine is against the law.
Orphenadrine is usually taken 2 times per day, once in the morning and once in the evening. Follow your doctor's dosing instructions.
Do not crush, chew, or break an extended-release tablet. Swallow it whole.
Orphenadrine is only part of a complete program of treatment that may also include rest, physical therapy, or other pain relief measures.
Store orphenadrine at room temperature away from moisture, heat, and light. Keep the bottle tightly closed when not in use.
Keep track of the amount of medicine used from each new bottle. Orphenadrine is a drug of abuse and you should be aware if anyone is using your medicine improperly or without a prescription.
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Warnings
You should not take orphenadrine if you have problems with urination, an enlarged prostate, glaucoma, a stomach ulcer or blockage in your digestive tract, trouble swallowing, or myasthenia gravis.
This section was rewritten for readability and reviewed for meaning.
Before taking this medicine
You should not use orphenadrine if you are allergic to it, or if you have:
- urination problems;
- an enlarged prostate;
- glaucoma;
- a stomach ulcer;
- a blockage in your stomach or intestines;
- trouble swallowing; or
- myasthenia gravis.
To make sure orphenadrine is safe for you, tell your doctor if you have:
- heart disease;
- a heart rhythm disorder;
- coronary artery disease; or
- if you also use a narcotic (opioid) medication.
It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.
It is not known whether orphenadrine passes into breast milk or if it could affect the nursing baby. Tell your doctor if you are breast-feeding.
Orphenadrine is not approved for use by anyone younger than 18 years old.
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Orphenadrine side effects
Get emergency medical help if you notice signs of an allergic reaction: hives; trouble breathing; swelling of your face, lips, tongue, or throat.
Orphenadrine may cause serious side effects. Stop using orphenadrine and call your doctor right away if you experience:
- feeling light-headed, like you might faint;
- painful or difficult urination;
- very little or no urination;
- confusion, anxiety, agitation, tremors, or hallucinations; or
- pounding heartbeats or fluttering in your chest.
Common side effects of orphenadrine may include:
- dizziness, drowsiness, weakness;
- nausea, vomiting;
- dry mouth; or
- constipation.
This is not a complete list of side effects and others may happen. Inform your doctor about any unusual or bothersome side effects. You can report side effects to the FDA at 1-800-FDA-1088.
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Orphenadrine dosing information
Usual Adult Dose for Muscle Spasm:
Extended-Release Tablets: 100 mg orally twice a day Parenteral Injection: 60 mg IV or IM every 12 hours as needed Use: As an adjunct to rest, physical therapy and other measures for the relief of discomfort associated with acute painful musculoskeletal conditions.
What happens if I miss a dose?
Take the missed dose as soon as you remember. If it is almost time for your next scheduled dose, skip the missed dose. Do not take extra medicine to make up for the missed dose.
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What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Orphenadrine may affect your thinking or reactions. Be cautious if you drive or do anything that needs you to be alert.
Do not drink alcohol. Dangerous side effects or death can occur.
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What other drugs will affect orphenadrine?
Taking orphenadrine with other medications that make you feel sleepy or slow your breathing can lead to serious side effects or even death. Talk to your doctor before using a sleeping pill, narcotic pain medicine, prescription cough medicine, a muscle relaxer, or medicines for anxiety, depression, or seizures.
Other medications may interact with orphenadrine, including both prescription and over-the-counter medicines, vitamins, and herbal products. Inform all your health care providers about every medicine you are currently taking, as well as any medicine you begin or stop using.
This section was rewritten for readability and reviewed for meaning.
Related medicines
Content is provided for education and is not medical advice. See our medical disclaimer.