Acne antibiotics help treat schizophrenia.

The Independent reports on one of those weird medical side effect whodathunkits (like Rogaine and Viagra coming from blood pressure medications). Minocycline, a drug usually used to get rid of zits, is about to revolutionize we treat mental illness:

Trials in Israel, Pakistan and Brazil have shown significant improvement in patients treated with the drug.

The first account of minocycline’s effects appeared in 2007 when a 23-year-old Japanese man was admitted to hospital suffering from persecutory delusions and paranoid ideas. He had no previous psychiatric history but became agitated and suffered auditory hallucinations, anxiety and insomnia.

Blood tests and brain scans showed no abnormality and he was started on the powerful anti-psychotic drug halperidol. The treatment had no effect and he was still suffering from psychotic symptoms a week later when he developed severe pneumonia.

He was prescribed minocycline to treat the pneumonia and within two weeks the infection was cleared and the psychosis resolved. Minocycline was stopped and his psychiatric symptoms worsened. Treatment with the drug was resumed and within three days he was better again. Halperidol was reduced but he remained on minocycline. Two years after his psychotic episode, he was still well.

The UK trial aims to recruit 175 patients recently diagnosed with schizophrenia, half of whom will be randomly allocated to take minocycline with their standard anti-psychotic treatment while the remainder take a placebo.

They say it could also help us figure out how and why psychosis happens – and even help treat Alzheimer’s patients, too.