Chlorcyclizine oral tablets

What is this medication?

CHLORCYCLIZINE (klor SIK li zeen) is an antihistamine. This medicine is used to treat allergy symptoms.

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

COMMON BRAND NAME(S): AHIST

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

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

• any chronic illness
• glaucoma
• heart disease
• kidney disease
• liver disease
• lung or breathing disease, like asthma
• pain or trouble passing urine
• prostate disease
• stomach or intestine problems
• usual or allergic reaction to chlorcyclizine, other medicines, foods, dyes, or preservatives
• pregnant or trying to get pregnant
• breast-feeding

How should I use this medication?

Take this medicine by mouth with a full glass of water. Follow the directions on the prescription label. You may take this medicine with food or on an empty stomach. Take your medicine at regular intervals. Do not take your medicine more often than directed.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed. While this drug may be prescribed for children as young as 6 years of age for selected conditions, precautions do apply.

Patients over 65 years old may have a stronger reaction and need a smaller dose.

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?

• alcohol
• atropine
• certain medicines for stomach problems like dicyclomine, hyoscyamine
• certain medicines for travel sickness like scopolamine
• certain medicines for Parkinson's disease like benztropine, trihexyphenidyl
• ipratropium
• medicines for depression, anxiety, or psychotic disturbances
• medicines for sleep
• muscle relaxants
• narcotic medicines for pain
• other medicines for allergy, cough and cold
• phenobarbital

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?

Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse.

You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.

Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water may help. Contact your doctor if the problem does not go away or is severe.

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

What side effects may I notice from receiving this medication?

Side effects that you should report to your doctor or health care professional as soon as possible:

• allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
• changes in vision
• fast or irregular heartbeat
• feeling faint or lightheaded, falls
• trouble passing urine or change in the amount of urine

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

• constipation
• drowsiness
• dry mouth
• restlessness

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.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Keep container tightly closed. Throw away any unused medicine after the expiration date.

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.