I use medical marijuana to treat my seizure disorder. should i stop use to get an accurate eeg test? or continue use to see the effectiveness of it.

Define accurate: There are some seizure related changes on EEG that are obvious on any study and some that will only appear during a seizure event. Some with a true seizure disorder have a normal EEG and some with an abnormal study never have seizures.If you have a baseline abnormal study, another on MJ might be interesting, but you should work out the specifics of its use or the value of another EEG with your doc

Here's a thought: Marijuana will not affect your EEG, but it is not a good treatment for epilepsy. So you should consider stopping it anyway.

Comments: Medical marijuana may be beneficial in certain rare and atypical epilepsies, almost all childhood variations. Likely has a very modest effect on seizure prevention in adults, and if you do have epilepsy, definitely use a standard anti-epileptic medication. Yes, get an EEG, but also see a neurologist and get advice about the need for future treatment.