Yes. GcMAF is a complimentary therapy which is safe and effective to be used alongside all other treatments and medications except:

a) any type of immunosuppressant medication (medications which suppress the immune system instead of boosting it like GcMAF does)
b) most opioid-based pain medications

Although it is not harmful in any way to use GcMAF alongside these, they may render it ineffective. If you have any concerns about using GcMAF with the above-mentioned medications, or anything else you may currently be taking, please consult with your doctor.