There is a link on the CAA website to the new protocols
CAA Website
On the left click Aviation Medicine, then amended protocols, and you will see "Mood Disorder (Depression)
Acceptable medicines are
Fluoxetine
Sertraline
Citalopram
Escitalopram
You will still need a report from the psychiatrist that has prescribed the medicines stating what levels you have and this will be assessed by the Panel. You must also be symptom free on the medication for at least 4 weeks with no side effects.
Read through the requirements and if you have any questions mail the CAA doctors directly, there details are also on the website under Inspectors and Contact details. Dr Mahlangu was dealing with this introduction into the standards so I'd recommend contacting her directly with your queries.
Hope this helps