Clonidine and Chlorthalidone Side Effects
What should I watch for?
Visit your doctor or health care professional for regular checks on your progress. Check your blood pressure regularly as directed. Ask your doctor or health care professional what your blood pressure should be and when you should contact him or her. You may need blood work done while you are taking this medicine.
You may need to be on a special diet while taking this medicine. Ask your doctor.
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.
This medicine may affect blood sugar levels. If you have diabetes, check with your doctor or health care professional before you change your diet or the dose of your diabetic medicine.
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 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.
Do not treat yourself for coughs, colds, or pain while you are taking this medicine without asking your doctor or health care professional for advice. Some ingredients may increase your blood pressure.
If you are going to have surgery tell your doctor or health care professional that you are taking this medicine.
Common and Rare Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Signs and symptoms of overdose
Difficulty in breathing
dizziness (extreme) or faintness
pinpoint pupils of eyes
unusual tiredness or weakness (extreme)
Check with your doctor as soon as possible if any of the following side effects occur:
Signs and symptoms of too much potassium loss
Dryness of mouth
mood or mental changes
muscle cramps or pain
nausea or vomiting
Signs and symptoms of too much sodium loss
decreased mental activity
unusual tiredness or weakness
swelling of feet and lower legs
Black, tarry stools
blood in urine or stools
cough or hoarseness
fever or chills
lower back or side pain
paleness or cold feeling in fingertips and toes
pinpoint red spots on skin
skin rash or hives
unusual bleeding or bruising
vivid dreams or nightmares
yellow eyes or skin
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
dryness of mouth
unusual tiredness or weakness
After you stop using this medicine, it may still produce some side effects that need attention. During this period of time, check with your doctor immediately if you notice the following side effects:
Anxiety or tenseness
fast or pounding heartbeat
shaking or trembling of hands and fingers
trouble in sleeping
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.