Norflex contains orphenadrine citrate, which is the citrate salt form of orphenadrine. It is available as an extended-release tablet, with each tablet containing 100 mg of orphenadrine citrate for oral administration. Key inactive ingredients include hydroxypropyl methylcellulose, lactose monohydrate, and magnesium stearate.

How should I use this medication?

This medication is injected into a vein. It is usually given by your care team in a hospital or clinic setting. If you get this medication at home, you will be taught how to prepare and give it. Use exactly as directed. Take it as directed on the prescription label. Keep taking it unless your care team tells you to stop. It is important that you put your used needles and syringes in a special sharps container. Do not put them in a trash can. If you do not have a sharps container, call your pharmacist or care team to get one. Talk to your care team about the use of this medication in children. Special care may be needed.

Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once. NOTE: This medicine is only for you. Do not share this medicine with others.

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

Where should I keep my medication?

Keep out of the reach of children and pets. Store between 20 and 25 degrees C (68 and 77 degrees F). Get rid of any unused medication after the expiration date on the label. To get rid of medications that are no longer needed or have expired: -Take the medication to a medication take-back program. Check with your pharmacy or law enforcement to find a location. -If you cannot return the medication, ask your pharmacist or care team how to get rid of this medication safely.

NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.

What side effects may I notice from receiving this medication?

Side effects that you should report to your care team as soon as possible: -Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome): -Blurry vision -Constipation -Dizziness -Drowsiness -Dry mouth -Feeling faint or lightheaded -Trouble passing urine

This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What should I tell my care team before I take this medication?

They need to know if you have any of these conditions: -Glaucoma -Heart disease -Kidney disease -Myasthenia gravis -Peptic ulcer disease -Prostate disease -Stomach problems -An unusual or allergic reaction to orphenadrine, sulfites, other medications, foods, dyes, or preservatives -Pregnant or trying to get pregnant -Breast-feeding

What may interact with this medication?

Do not take this medication with any of the following: -Opioids for cough This medication may also interact with the following: -Alcohol -Benzodiazepines, such as alprazolam, diazepam, or lorazepam -Certain antihistamines -Certain medications for depression, such as amitriptyline or trazodone -Certain medications for seizures, such as phenobarbital or primidone -Medications that cause drowsiness before a procedure, such as propofol -Medications that help you fall asleep -Medications that relax muscles -Opioids for pain -Phenothiazines, such as chlorpromazine, prochlorperazine, thioridazine

This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

What should I watch for while using this medication?

Your condition will be monitored carefully while you are receiving this medication. Tell your care team if your symptoms do not start to get better or if they get worse. This medication may affect your coordination, reaction time, or judgment. Do not drive or operate machinery until you know how this medication affects you. Sit up or stand slowly to reduce the risk of dizzy or fainting spells. Drinking alcohol with this medication can increase the risk of these side effects. If you are taking another medication that also causes drowsiness, you may have more side effects. Give your care team a list of all medications you use. Your care team will tell you how much medication to take. Do not take more medication than directed. Call emergency for help if you have problems breathing or unusual sleepiness. Your mouth may get dry. Chewing sugarless gum or sucking hard candy and drinking plenty of water may help. Contact your care team if the problem does not go away or is severe.