Depression
"My 14-year-old son suffers from major depressive disorder/social anxiety disorder. He was previously on lexapro for 10 months, which worked well for his symptoms but gradually stopped working. He was switched to Zoloft and increased from 25 mg to 50 mg after a week. Only 3 days into the  50 mg dose he reports much improvement in his depression symptoms. It doesnt control his anxiety symptoms as well (yet) but we are hoping that will change in the next few weeks. Overall, he feels better on Zoloft. Takes it in the evening due to initial side effect of headache."