THE trial of a businessman who claims his cholesterol medication caused him to sexually assault a woman has heard conflicting medical evidence about the effects the drug can have.
Anthony Lyons (51), an aviation broker from Griffith Avenue in Dublin, denies sexually assaulting the 27-year-old woman in the early hours of October 3, 2010.
Mr Lyons admits the attack but claims he was overcome with an irresistible urge due to the combination of alcohol, the cholesterol medicine Rosuvastatin and cough syrup.
Dublin Circuit Criminal Court court heard Mr Lyons claim he began taking the drug the day before the attack.
Professor Alice Stanton, who is a specialist in clinical pharmacology, said clinical trials of Rosuvastatin provided no evidence that it caused increased irritability, aggression or violence.
She said there was a study 20 years ago which associated low cholesterol with violent behaviour but added that "association does not mean causation".
However, Dr Malcolm Vandenburg pointed to a case study that listed several patients who were on similar types of medication and showed highly aggressive behaviour.
Dr Vandenburg said he disputed Prof Stanton's opinion that the medication didn't have enough time to reach the brain.
Mr Lyons's friend and sometimes business partner, Conor McCarthy, said the accused was a quiet, level-headed man who had "impeccable" behaviour in the company of women.
The trial continues.