Can you please tell me the reactions between citalopram and melatonin?

Drug interaction: 119 people who reported to have interactions while taking Celexa (citalopram) and melatonin were studied and reported on aug 13, 2013.There were reports of rash48, anxiety46, tooth abscess34, osteomylitis32, depression30, insomnia30, UTI 25, headache24, bone disorder22, cervical dysplasia22 most of these may be incidental and may not be interactions.