It said the new analysis suggested cranberry juice provided "no meaningful protection" against cystitis.

BBC: Cranberry juice 'not effective' against cystitis

Cranberry juice is said to alleviate cystitis, a stinging inflammation of the bladder usually caused by a urinary tract infection (UTI).

BBC: Cranberry juice 'not effective' against cystitis

Researchers are also testing a number of other solutions that may help relieve the symptoms of interstitial cystitis, including hyaluronan, chondroitin sulfate and oxybutynin.

CNN: Interstitial cystitis

The first application, currently in clinical development, is to treat interstitial cystitis (IC), a painful bladder disease in women that forces them to urinate every 10 minutes.

FORBES: TARIS Biomedical Keeps Delivering Drugs Direct-to-the-Bladder

It plans one for the stent product that it hopes will be approved in 2014 and another for the interstitial cystitis product expected to be approved in 2015.

FORBES: TARIS Biomedical Keeps Delivering Drugs Direct-to-the-Bladder