Can I sue a pharmacy for misdosing my 16yr old daughter for 6 months

My daughter was prescribed birth control by her Dr. He always starts girls out on the lowest dose. However, this pharmacy took it upon themselves to give my daughter the higher dose, not just for 1 month, but for 6 months in a row. They never told us at all. I was wondering why her depression was getting so bad. The doctor called me to tell me because he received a phone call needing a refill script for my daughter. It was only then that we knew. We were also told by the pharmacy for my daughter to double up on her pills that day since she had missed 2 days. That made her so sick that she missed school and I missed work. Now she won't take the pills anymore because she's terrified she'll get sick again. Since then i filed a complaint with the pharmacy and their claims dept called me, admitting fault, and wanting to send us a check for $500. My question is, should I let them settle or not? If this was a controlled substance it could've ended really badly.