my 12 year old is so depressed and angry suicidal statements. he just started zoloft. You ae giving me hope. he is on lamictal for seizures and all the adhd drugs give him a neck tic.he is a smart kid but this neck tic and his weight gain due to painful joints he cant exercise well. Zoloft Dosage 7 Year Old 2019 Zoloft – FDA prescribing information, side effects and uses – Zoloft Description. Zoloft ® (sertraline hydrochloride) is a selective serotonin reuptake inhibitor (SSRI) for oral administration. Sertraline plasma clearance in a group of 16 (8 male, 8 female) elderly patients treated with 100 mg/day of Zoloft for 14 days was approximately 40% lower than in a similarly studied group of younger (25 to 32 year old) individuals. Steady-state, therefore, was achieved after 2 to 3 weeks in older patients. The same study showed a decreased clearance of desmethylsertraline in older males, but. My 7 year old grandson became increasingly aggressive on Zoloft, had to wean him off it. Had to pull him out of tae kwon doe when he started threatening strangers with it.they hv put him on a mood. I also have a 7-year-old son just diagnosed with anxiety and possibly some mild behavior thing. He has a lot going on of what you describe above - extremely similar - meltdowns, trouble sleeping, etc. Zoloft, as almost any drug, can have bad consequences. The 12 year old you referred to was probably an extreme case (since it was added to his other medications). My 7 year old son, has suffered from anxiety, night terrors, and phobias for about 2 years. Recently, it has ramped up to the point where he is barely sleeping at night and wakes up screaming and begging for help not to be afraid of stuff. My ex-wife has taken my daughters to a psychiatrist that first mis-diagnosed my 9 year old as bi-polor only to get a second oppinion from UNI at the U of U and find out she has adhd and now she perscribed zoloft to my 7 year old daughter.