AN INQUEST will examine how a Flintshire man came to die from a toxic level of an anti-depressant drug.

Charity worker Michael David Williams, 66, of Cedar Grove, Mold, died in the High Dependency Unit at Wrexham Maelor Hospital on January 11.

John Gittins, coroner for North Wales East and Central, ordered a post-mortem examination because of concern about the level of lithium in his system.

After sending off samples for analysis pathologist Dr Andrew Dalton gave the provisional cause of death as respiratory tract infection caused by lithium toxicity.

Adjourning the inquest held at Ruthin to a date to be fixed, the coroner said the full circumstances would be examined because use of lithium required close monitoring in the community.