DrugDigest: Hydrochlorothiazide
- Information on dosage, usage, side effects, interactions, and drug comparisons including generics when available. Also sold under brand names such as: Esidrix, Ezide, HydroDIURIL, Microzide, Oretic.
- http://www.drugdigest.org/DD/DVH/Uses/0,3915,325%7CHydrochlorothiazide,00.html

Hydrochlorothiazide
- Information about this antihypertensive and diuretic drug, from the RxList. Covers dosage, pharmacology, side effects, drug interactions, and warnings and precautions.
- http://www.rxlist.com/cgi/generic/hctz.htm

Hydrochlorothiazide and Triamterine
- Information from the RxList about this combination medication, marketed as Dyazide. Includes dosage, pharmacology, side effects, drug interactions, contraindications, and warnings.
- http://www.rxlist.com/cgi/generic/hctztri.htm