A method of delaying the onset of an immune response, and/or slowing the progression of an immune response, and/or reducing the severity of an immune response, and/or suppressing an immune response in a mammal, said method comprising:
- coadministering to said mammal:
- a first compound comprising GABA, a GABA analogue, a GABA agonist, a GABA or GABA agonist prodrug, and/or a GABA potentiator;
- and
- a second compound comprising a non-GABA therapeutic agent for the treatment of type I diabetes, and/or an anti-inflammatory compound, and/or a factor that stimulates a regulatory or immune response, and/or a GABAB receptor agonist;
- wherein said first compound and said second compound are administered in an amount sufficient to delay the onset of an immune response, and/or slow the progression of an immune response, and/or reduce the severity of an immune response, and/or suppress an immune response in said mammal.