If the dreams are emotionally distrubing and you are still having a hard time coping with their deaths then yes there are medicines and treatment avaiable to help you. There isn't a pill that can make you forget, but there are medicines that can help you cope. With psychiatric medicines, more so than medicines for other aliments, what works for one doesn't work for another. So you just have to try and find what works for you.
My mom and dad are dead and I keep dreaming about them,is there an antidepressant I can take to forget about everything?
Nope give yourself to God and live for Jesus that is the only way to cope , Nothing else will help you , No I am far from a saint But I am glad I chose to change my life
Don't listen to the person who said accept god/jesus. That's just a lie to get you to convert to their mindless religion of ignorant sheeple.