Amlodipine
high blood pressure
"I've been taking almost 3.5 yrs. side effects: restless leg, itching, dry mouth, rash, tired, insomnia, joint pain and overall feeling of something wrong. 
I stopped taking it and for about two weeks and I've been feeling great. Right away I started to feel more energetic. Sleeping well. Today I took one to see if I should start taking again and now I have itching, restless leg and insomnia. I'm not taking anymore. It's horrible"