Abstract
The bladder is a hollow organ that can be treated locally by transurethral catheter for intravesical drug instillation or cystoscopy for intravesical drug injection. With advancing technology, local organ-specific therapy and drug delivery is of expanding interest for treating dysfunctional bladder, including interstitial cystitis/bladder pain syndrome, overactive bladder and sterile hemorrhagic cystitis after chemotherapy or pelvic radiation. Intravesical therapy has shown varying degrees of efficacy and safety in treating interstitial cystitis/bladder pain syndrome, overactive bladder and hemorrhagic cystitis with new modalities being developed. Intravesical (regional) therapy has several advantages than oral (systemic) therapy, including high local concentration and less systemic toxicity. In recent years, intravesical delivery of biotechnological products including neurotoxins and immunosuppressive agents, and delivery platform including liposomes has shown promise for lower urinary tract symptoms. This review considers the current status of intravesical therapy in dysfunctional bladder including interstitial cystitis/bladder pain syndrome, overactive bladder and hemorrhagic cystitis with special attention to lipid based novel drug-delivery.
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