Cholinergics as they augment acetylcholine which is strongly involved in smell and senses in general.
I don't think neurogenesis is worth anything in that case, the brain is able overtime to restructurate itself in order to adapt if the injury wasn't fatal, there are stories of people having half of their brain destroyed and they're still alive and functioning quite well.
Time will help but cholinergics too, not only they enhance smell but acetylcholine helps with neuroplasticity and this will help your brain to adapt to his post-injury environment.
Also it will prevent further injury by protecting axons with myelin.
I'm not sure prozac is necessary, prozac helps with neurogenesis but that is mainly due to its inhibitory effect that prevent glutamate excitotoxicity from destroying neurons due to overexcitation, some brain injuries do cause glutamate excitotoxicity but not all of them.
That could be a good choice if you have chemically induced anxiety after your brain injury.
But personally I would recommend choline bitartrate + inositol.
Choline bitartrate for memory, sense enhancement, axon protection and inositol for anxiety, depression and also for enhancing the effects of choline.
Edited by renfr, 26 December 2012 - 02:45 PM.