Can loop diuretics be used together with thiazide diuretics?
The most common loop diuretic is Lasix, known generically as Furosemide. The most common thiazide (or thiazide-like) diuretic is called Hydrochlorothiazide and is commonly abbreviated HTC or HCTZ. The safety of any medication, and any combination of medications, varies from person to person, however, I have encountered patients who are prescribed both Lasix and HCTZ. You should weigh the risks and benefits of any treatment with your own physician or advanced practice medical provider and never self-medicate. Combining a loop diuretic and a thiazide diuretic can lead to dehydration, hypotension, hypokalemia, hypomagnesemia, and hyponatremia, all of which are potentially life threatening, and thus requires close monitoring by your physician or advanced practice medical provider.