I agree this is the pill from hell, I took one 500 mg. within 10 minutes,my heart was pounding and broke out in weps and a rash. Called pharmacist, was told to go to the er. or take benadryl. only took one pill. the next morning woke up shaky, went to work 2 hours later was itching was anxious, face and lips were numb. that night started having anxiety, hard to breathe, dizzy , back of head numb and tingling, thought i was going to pass out.. ended up in ambulance to hospital. er doctors said it was an anxiety attack. 3 days later, anxious, fearful, dizzy, and numbness in face and back of head. still have 2 sores on right arm, joints also hurt , words were slurred all this from 1 pill that was supposed to help me. i would advise everyone not to take this pill.