Alka-Seltzer can cure a urinary tract infection (UTI).
Patients who suffer from recurrent UTIs are always in search for a non-prescription fix to the problem. One very popular home remedy is to use Alka-Seltzer tabs. People are instructed to "just dissolve two tablets in a glass of water and drink it at the onset of the symptoms."
It's proposed that by alkalinizing the urine, the sodium bicarbonate in Alka-Seltzer will inhibit some types of bacteria from growing in the bladder.
But there is no good evidence that alkalinizing the urine helps to relieve symptoms of dysuria...whether due to infection or not. Studies have failed to show any benefit of sodium bicarbonate for treatment of UTIs.