Cyproheptadin (ほかの名前 Periactin)

What is this medicine?

CYPROHEPTADINE is a histamine blocker. This medicine is used to treat allergy symptoms. It can help stop runny nose, watery eyes, and itchy rash.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
any chronic disease
glaucoma
prostate disease
ulcers or other stomach problems
an unusual or allergic reaction to cyproheptadine, other medicines foods, dyes, or preservatives
pregnant or trying to get pregnant
breast-feeding

How should I use this medicine?

Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Take your doses at regular intervals. Do not take your medicine more often than directed.

Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 2 years of age 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 medicine?

Do not take this medicine with any of the following medications:
MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate

This medicine may also interact with the following:
alcohol
barbiturate medicines for inducing sleep or treating seizures
medicines for depression, anxiety, or psychotic disturbances
medicines for movement abnormalities
medicines for sleep
medicines for stomach problems
some medicines for cold or allergies

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 medicine?

Visit your doctor or health care professional for regular check ups. Tell your doctor or health care 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.

This medicine can make you more sensitive to the sun. Keep out of the sun. If you cannot avoid being in the sun, wear protective clothing and use sunscreen. Do not use sun lamps or tanning beds/booths.

What side effects may I notice from this medicine?

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
agitation, nervousness, excitability, not able to sleep
chest pain
fast, irregular heartbeat
trouble passing urine or change in the amount of urine
seizures
unusual bleeding or bruising
unusually weak or tired
yellowing of the eyes or skin

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
constipation or diarrhea
headache
loss of appetite
nausea, vomiting
stomach upset
weight gain

This list may not describe all possible side effects.

Where should I keep my medicine?

Keep out of the reach of children.

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