My husband has just been put on quetiapine. He has got worse in days of taken it. Today he doesnt no my name and his speech is bad. He can walk no problem. This has just happened since he has been put on this drug. I have checked up on it Antipsychotic drugs are widely used for the control of behavoiural manifestations in Dementia of which agitation is the most common Quetiapine is associated with accelerated cognitive decline this is from BMJ study www.bmj.com. What should i do ? tell the doctor about it? There is more about it on their site. It also says that rivastigmine is of no benefit. This is the British Medical Journal. Who is right the BMJ or a doctor ?