MK Ultra is mainly used for treating different kinds of pains and provides relief from mild to chronic pains conveniently. It is also used to treat stress and anxiety as it has a calming effect on strained nerves. MK Ultra can also be employed for curing insomnia, anxiety and a loss of appetite. It stimulates your appetite and makes you feel hungry quickly. The side effects of this strain mainly include having a dry mouth. You can also get dry eyes, dizziness and headaches by using this strain.