Water tablets (diuretics)
BMJ Group Medical Reference
Water tablets ( diuretics) help your body to get rid of extra fluid. The kind of water tablet that was studied for Ménière's disease is a combination of two types of diuretics, triamterene and hydrochlorothiazide. The combination is called co-triamterzide (brand name Dyazide).
There hasn't been much research, so we can't say for certain whether treatment with diuretics helps. In one small study (a randomised controlled trial) of co-triamterzide, this treatment didn't help people's hearing, and it wasn't certain if it helped their vertigo ( dizziness) or tinnitus (ringing in the ears). 
You can get side effects with diuretics. They include stomach upsets, dizziness, and rashes. 
Diuretics are a type of medicine that reduce the amount of fluid in your body. The extra fluid is removed in your urine.
randomised controlled trials
Randomised controlled trials are medical studies designed to test whether a treatment works. Patients are split into groups. One group is given the treatment being tested (for example, an antidepressant drug) while another group (called the comparison or control group) is given an alternative treatment. This could be a different type of drug or a dummy treatment (a placebo). Researchers then compare the effects of the different treatments.
For more terms related to Ménière's disease
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