Patients allergic to sulfa may also be allergic to hydrochlorothiazide because of the similarity in the chemical structure of the two medications.
Hydrochlorothiazide can lower blood potassium, sodium, and magnesium levels. Low potassium and magnesium levels can lead to abnormalities in heart rhythm, especially in patients already taking digoxin (Lanoxin). During hydrochlorothiazide treatment, supplementation with potassium is common to prevent low potassium levels.
Blood uric acid levels can increase during hydrochlorothiazide treatment, and this elevation may cause an episode of acute gout in some individuals.
GENERIC AVAILABLE: Yes
PREPARATIONS: Tablets: 80/12.5, 160/12.5, 160/25, 320/12.5, and 320 mg/25 mg
STORAGE: Valsartan/hydrochlorothiazide tablets should be stored between 15 C and 30 C (59 and 86 F).
DOSING: The recommended starting dose of valsartan/hydrochlorothiazide is 80/12.5 to 160 mg/ 12.5 mg by mouth once daily. If blood pressure is not controlled, doses may be increased every 1 to 2 weeks to a maximum of 320 mg/25 mg per day.
- Increased thirst
- Decreased heart rate
- Blurred vision
- Decreased concentration
- Ringing in the ears
Quick GuideHow to Lower Blood Pressure: Exercise Tips
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.
Need help identifying pills and medications?
Use the pill identifier tool on RxList.