Can I be a surrogate if I have clinical/chemical depression?

My brother and sister-in-law have been trying to have a baby for 4 years now. They most recently have gone through two rounds of ivf, both have been unsuccessful. They plan on doing one more round, then the plan was to have me be a surrogate for them. I have no question in my mind and heart that I can do it. I was reading through the list of health requirements and I saw anyone on medication for mental health problems would not be eligible. I am on wellbutrin and have been for many years now. I was on it during two of my three pregnancies. I guess now I'm wondering if I will be eligible. Would I be required to go off my medication? And I'm also wondering who actually makes the determination of who is eligible?
Thank you.

Reply by Rayven
If your medications could affect the unborn child, then yes, you would need to go off of them. In your personal situation, this might be the biggest hindrance to you becoming a surrogate mother for your brother.

In most surrogacy situations, intended parents and agencies do not want to get involved in a situation where a surrogate mother needs to get off her medications with unknown consequences.

In your personal situation, because you would be a surrogate mother for a family member, this rule might be allowed to be stretched. You will need to speak with your doctor about this.