The husband of Brittany Murphy says the late actress had "laryngitis and flu-like symptoms" at the time of her sudden death on Dec. 20 – but was not suffering from seizures, as has been reported.

In his first interview since his wife´s death, Simon Monjack tells PEOPLE that many of the prescription medications found in their house at the time of Murphy´s death were for his own use.

Among the prescription medications reportedly on hand at the Los Angeles home were: Methylprednisolone, an anti-inflammatory, Fluoxetine, an antidepressant, Klonopin, a seizure medication, Carbamazepine, a medication to treat diabetes and also bipolar disorder, Ativan, an anxiety medication, and Vicoprofen, a pain killer.

Monjack, an oral cancer survivor, says he suffers from migraines and seizures as well as a heart condition. "I´ve had seizures," he says. "We´re still trying to establish [why]." He says most of the medications in the Hollywood Hills home he shared with Murphy and her mother, Sharon, were for his own health issues.