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Do not use this medication if you are allergic to hydrochlorothiazide or captopril, or if you have:
You should not use this medication if you are allergic to other ACE inhibitor, such as benazepril (Lotensin), fosinopril (Monopril), enalapril (Vasotec), lisinopril (Prinivil, Zestril), moexipril (Univasc), perindopril (Aceon), quinapril (Accupril), ramipril (Altace), or trandolapril (Mavik).
If you have certain conditions, you may need a dose adjustment or special tests to safely take this medication. Before you take hydrochlorothiazide and captopril, tell your doctor if you have:
FDA pregnancy category D. Do not use this medication without telling your doctor if you are pregnant or planning a pregnancy. Captopril could cause birth defects in the baby if you take the medication during pregnancy. Use an effective form of birth control. Stop using this medication and tell your doctor right away if you become pregnant during treatment.
Hydrochlorothiazide and captopril can pass into breast milk and may harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.
Take this medication exactly as it was prescribed for you. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor. Follow the directions on your prescription label.
Your doctor may occasionally change your dose to make sure you get the best results from this medication.
Take each dose with a full glass of water.
Some things can cause your blood pressure to get too low. This includes vomiting, diarrhea, heavy sweating, heart disease, dialysis, a low-salt diet, or taking other diuretics (water pills). Follow your doctor's instructions about the type and amount of liquids you should drink while taking hydrochlorothiazide and captopril. Tell your doctor if you have a prolonged illness that causes diarrhea or vomiting.
While you are taking this medication, your blood pressure will need to be checked on a regular basis. Do not miss any scheduled appointments.
Your blood and urine may also be tested if you have been vomiting or are dehydrated.
Hydrochlorothiazide can interfere with the results of a thyroid test. Tell any doctor who treats you that you are using a thiazide diuretic.
If you are being treated for high blood pressure, keep using this medication even if you feel fine. High blood pressure often has no symptoms.
Store hydrochlorothiazide and captopril at room temperature away from moisture, heat, and light.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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