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GUANFACINE (GWAHN fa seen) is used to treat high blood pressure.
This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.
They need to know if you have any of these conditions:
heart disease or recent heart attack
kidney or liver disease
an unusual or allergic reaction to guanfacine, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
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. Do not suddenly stop taking this medicine. You must gradually reduce the dose or you may get a dangerous increase in blood pressure. Ask your doctor or health care professional for advice.
Talk to your pediatrician regarding the use of this medicine 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.
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.
barbiturate medicines for inducing sleep or treating seizures
medicines for high blood pressure
prescription pain medicines
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.
Visit your doctor or health care professional for regular checks on your progress. Check your heart rate and blood pressure regularly while you are taking this medicine. Ask your doctor or health care professional what your heart rate should be and when you should contact him or her.
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. To avoid dizzy or fainting spells, do not stand or sit up quickly, especially if you are an older person. Alcohol can make you more drowsy and dizzy. 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.
Do not treat yourself for coughs, colds or allergies without asking your doctor or health care professional for advice. Some ingredients can increase your blood pressure.
Side effects that you should report to your doctor or health care professional as soon as possible:
agitation, anxiety, trembling, or shakiness
confusion or excessive drowsiness
dizziness or faintness
increased urine passed
irregular, fast or slow heartbeat
muscle weakness or pain
palpitations or chest pain
skin rash, itching
unusual skin rash or reaction
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
change in sex drive or performance
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.
Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Protect from light. Keep container tightly closed. Throw away any unused medicine after the expiration date.
GUANFACINE (GWAHN fa seen) is used to treat attention-deficit hyperactivity disorder (ADHD).
low blood pressure or slow heart rate
Take this medicine by mouth with a full glass of water. Follow the directions on the prescription label. Do not cut, crush or chew this medicine. Do not take this medicine with a high-fat meal. Take your medicine at regular intervals. Do not take it more often than directed. Do not stop taking except on your doctor's advice.
Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 6 years for selected conditions, precautions do apply.
Overdosage: If you think you've taken too much of this medicine contact a poison control center or emergency room at once.
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. If you miss 2 or more doses in a row, you should contact your doctor or health care professional. You may need to restart your medicine at a lower dose.
barbiturate medicines for insomnia or treating seizures
medicines for blood pressure
Avoid becoming dehydrated or overheated while taking this medicine.
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
changes in emotions or moods
chest pain or chest tightness
feeling faint or lightheaded, falls
low blood pressure
unusually slow heartbeat
unusually weak or tired
Side effects that usually do not require medical attention (Report these to your doctor or health care professional if they continue or are bothersome.):
loss of appetite
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). 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.