I have been taking Amoxicillin (500 mg every 8 hours) for one year with no stop time as far as I know. The drug is used to prevent repeated cellulitis in my legs which have led to sepsis. I have chronic pedal edema in my legs due to Noonan's Syndrome. I was hospitalized seven times between December 2013 and October 2014. This treatment was the last resort. What are the long term effects of taking this drug? I'm asking because I have recently begun feeling more weak and tired lately. Thanks.