My wife had a 4 minor attacks between 2000 and 2009 with 99.9% full recovery after each one. The Dr. wanted her to go on Rbif, but she didn't want to and then she had the horrible attack 4 years ago. Sh almost died and spent 3 months in the hospital. A friend of her's was on Rbif and she was always wondering if she needed to be on it until my wife's attack. The side affects from the drug are bad, but not as bad as the symptoms left from the last attack.