Man hallucinates and 'hears God' while on antibiotics. What happened?

 https://www.livescience.com/antibiotics-give-man-mania

Doctors diagnosed the man with antibiomania, a rare side effect of treatment with antibiotics, according to the case report, published in the journal BMC Psychiatry in August 2021. The term "antibiomania" was coined in a 2002 review published in the Journal of Clinical Psychopharmacology that examined case studies involving antibiotic-related mania.