Hydrochlorothiazide Side Effects
What should I watch for?
Visit your doctor or health care professional for regular checks on your progress. Check your blood pressure 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 to be on a special diet while taking this medicine. Ask your doctor.
Check with your doctor or health care professional if you get an attack of severe diarrhea, nausea and vomiting, or if you sweat a lot. The loss of too much body fluid can make it dangerous for you to take this medicine.
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.
This medicine may affect your blood sugar level. If you have diabetes, check with your doctor or health care professional before changing the dose of your diabetic medicine.
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.
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:
Incidence not known
Abdominal or stomach pain
back, leg, or stomach pains
black, tarry stools
blistering, peeling, or loosening of the skin
blood in the urine or stools
blue lips and fingernails
burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
cough or hoarseness
coughing that sometimes produces a pink frothy sputum
coughing up blood
cracks in the skin
decrease in urine output or decrease in urine-concentrating ability
decreased frequency or amount of urine
difficult, fast, or noisy breathing, sometimes with wheezing
difficulty with breathing
difficulty with swallowing
dizziness, faintness, or lightheadedness when getting up from a lying or sitting position
fast or irregular heartbeat
flushed, dry skin
fruit-like breath odor
general body swelling
general feeling of discomfort or illness
general feeling of tiredness or weakness
greatly decreased frequency of urination or amount of urine
increased blood pressure
joint pain, stiffness, or swelling
loss of appetite
loss of heat from the body
lower back or side pain
muscle cramps or pain
nausea or vomiting
numbness, tingling, pain, or weakness in the hands or feet
pain in the joints or muscles
painful or difficult urination
pains in the stomach, side, or abdomen, possibly radiating to the back
pinpoint red spots on the skin
puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
red, irritated eyes
red skin lesions, often with a purple center
red, swollen skin
redness, soreness, or itching skin
shortness of breath
sores, ulcers, or white spots on the lips or in the mouth
sores, welting, or blisters
sugar in the urine
swelling of the face, fingers, legs, ankles, feet, or lower legs
swollen or painful glands
tenderness of salivary glands
thickening of bronchial secretions
tightness in the chest
unpleasant breath odor
unusual bleeding or bruising
unusual tiredness or weakness
unusual weight loss
vomiting of blood
weakness and heaviness of the legs
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:
Incidence not known
decreased interest in sexual intercourse
difficulty having a bowel movement (stool)
feeling of constant movement of self or surroundings
hair loss or thinning of the hair
inability to have or keep an erection
increased sensitivity of the skin to sunlight
loss in sexual ability, desire, drive, or performance
pinpoint red or purple spots on the skin
redness or other discoloration of the skin
sensation of spinning
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.