Ketamine abuse linked to IC/PBS

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NEW YORK (Reuters Health) – Ketamine, widely abused as a party drug and sometimes known as Special K, can cause inflammation and contraction of the bladder leading to possibly irreversible kidney damage, according to a report from Hong Kong.

Ketamine is mostly used as a veterinary anesthetic. In humans, it causes hallucinations and high blood pressure. It became widely abused in some parts of the world by the 1990s, and has since been banned or classified as a controlled substance in several countries.

"Street-ketamine abuse is not only a drug problem but might be associated with a serious urological condition causing a significant burden to healthcare resources," Dr. Peggy Sau-Kwan Chu and colleagues write in the medical journal BJU International.

In their study, Chu, from Tuen Mun Hospital, Hong Kong, China, and others describe problems that developed in 59 ketamine abusers who were seen at Hong Kong hospitals from March 2000 to December 2007.

All of the subjects had moderate to severe lower urinary tract symptoms, such as urgency, frequency, and difficulty urinating.

Visual examination with a cystoscope revealed an inflamed bladder in 42 of these individuals, and biopsies showed that 12 of them had a more serious condition called interstitial cystitis.

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