Biogen Idec said the death of a patient in July was not caused by its MS drug Tecfidera, reported the Wall Street Journal, which says the patient’s physician came to this conclusion.

The patient had taken Tecfidera but stopped her regimen two-and-a-half weeks before she died, due to side effects including vomiting and diarrhea. Biogen Idec told Pharmalot at the time that this was important to note because the death was not “GI related.”