Carbinoxamine Extended-Release Suspension

What is this medication?

CARBINOXAMINE (kar bi NOX a meen) treats the symptoms of allergies and allergic reactions. It works by blocking histamine, a substance released by the body during an allergic reaction. It belongs to a group of medications called antihistamines.

This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.

COMMON BRAND NAME(S): Karbinal ER

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

They need to know if you have any of these conditions:

• Asthma
• Glaucoma
• Heart disease
• High blood pressure
• High thyroid levels
• Stomach or intestine problems
• Taking an MAOI, such as Marplan, Nardil, or Parnate in the last 14 days
• Trouble passing urine
• An unusual or allergic reaction to carbinoxamine, other medications, foods, dyes, or preservatives
• Pregnant or trying to get pregnant
• Breastfeeding

How should I use this medication?

Take this medication by mouth. Take it as directed on the prescription label at the same time every day. Shake well before using. Use a specially marked oral syringe, spoon, or dropper to measure each dose. Ask your pharmacist if you do not have one. Household spoons are not accurate. Do not take it more often than directed.

Talk to your care team about the use of this medication in children. While it may be prescribed for children as young as 2 years for selected conditions, precautions do apply.

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.

What may interact with this medication?

Do not take this medication with any of the following:

• MAOIs, such as Marplan, Nardil, and Parnate

This medication may also interact with the following:

• Alcohol
• Benzodiazepines, such as alprazolam, diazepam, lorazepam
• Medications that cause drowsiness before a procedure, such as propofol
• Medications that help you fall asleep
• Medications that relax muscles
• Opioids for pain or cough
• Other antihistamines
• Phenothiazines, such as chlorpromazine, prochlorperazine, thioridazine
• Some medications for depression, such as amitriptyline or trazodone
• Some medications for seizures, such as phenobarbital or primidone

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?

Visit your care team for regular checks on your progress. 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.

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.

This medication may cause dry eyes and blurred vision. If you wear contact lenses, you may feel some discomfort. Lubricating drops may help. See your care team if the problem does not go away or is severe.

Do not breastfeed while you are taking this medication.

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
• Sudden eye pain or change in vision such as blurry vision, seeing halos around lights, vision loss
• Trouble passing urine

Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):

• Confusion
• Constipation
• Dizziness
• Drowsiness
• Dry mouth

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.

Where should I keep my medication?

Keep out of the reach of children and pets.

Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F).Protect from light and moisture. Keep the container tightly closed. Get rid of any unused medication after the expiration date.

To get rid of medications that are no longer needed or have expired:

• Take the medication to a take-back program. Check with your pharmacy or law enforcement to find a location.
• If you cannot return the medication, check the label or package insert to see if the medication should be thrown out in the garbage or flushed down the toilet. If you are not sure, ask your care team. If it is safe to put it in the trash, empty the medication out of the container. Mix it with cat litter, dirt, coffee grounds, or another unwanted substance. Seal the mixture in a bag or container. Put it in the trash.

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.