I took 100mg of zoloft (sertraline) today by accident. i have never taken an ssri before. do i need to go see a doctor or will i be fine?

Ooops: That is a fairly high dose but not a toxic one. Unless you have an allergic reaction or take other things that interact it should be okay but watch carefully and get to an ER if problems arise. Don't drink alcohol. Do try to be w/ someone today just in case. Do be more careful of course. I hope it goes well - it should - the drug takes several days to build up to an effect usually.