Anxiousnomore.
You misunderstood me, I meant the wellbutrin/bupropion interacts with everything. Even cold remedies
Pharmacists, unfortunately, do not study plant medicine, so they would know little to nothing about this unless there were some severe interaction with the drug. Here's the thing -- wellbutrin is very stimulating, and if anxiety is the primary problem then it isn't usually used. If anxiety is caused by the depression, then wellbutrin might help with it. Lavender is a very weak relaxant and I wouldn't think it would interfere with much of anything. Valerian is stronger, but it targets GABA, which wellbutrin doesn't, so I would think it's okay to use it. It can cause drowsiness, and is mostly used as a sleep remedy, so be aware of that. The drug you wouldn't want to use these with would be benzos, as they target the same neurotransmitters.
You should talk it over with a pharmacist.