“Is there a medication that treats both depression and anxiety?”

YES! All the SSRI’s; examples: Fluoxetine, Citalopram, Escitalopram, Paroxetine, Sertraline, etc. Important caveat: Low doses act more as anti anxiety and higher doses more as antidepressants.

Absolutely brilliant question! Currently, we have many medications that are called antidepressants but that actually help with both anxiety as well as depression. Some of them even help with obsessive-compulsive disorder. In very general terms, selective serotonin reuptake inhibitors are known as the excellent medication‘s that help with depression and anxiety. The brand names include Zoloft, Prozac, Paxil, Celexa, Lexapro, and Luvox. There are also medicines that are known as selective norepinephrine and serotonin reuptake inhibitors. These are known by their brand names Cymbalta, Effexor XR, Fetzima, and Pristiq. There are even others that have more technical mechanisms of action. People frequently place a medicine called Remeron into that group as well as quite a few others! The best bet would be to talk to a psychiatrist or psychopharmacologist about your own physiology, what side effects would be most upsetting to you, as well as what other medication you might be on at the time. Lots and lots of hope! In fact, sometimes we even combine medications or augment them! Lots of help! lots of hope!

Yes

Yes. Generally most serotonin reuptake inhibitors such as Prozac, Zoloft, etc.

Generally, no there is not. Some SSRIs can stimulate anxiety.