Weight gain, tremor, and acne are apparently the most common side effects, but many people have fewer
side effects after being on any medication for a while, and you never know which
side effects you will get until you've taken it. If you haven't noticed any side effects so far, there's a better chance that you won't get bad ones later, since side effects (maybe except for weight gain, which you should keep an eye on) are usually the worst on start-up.