Blue emu effects on anti depression drugs and serotonin?

Hi, Sheepranch1,
There were no specific interactions noted with lidocaine, the active ingredient in some Blu Emu formulations, but it was suggested that you inform your health care providers.
"Tell all of your health care providers that you take Blue-Emu (menthol gel, liquid, and solution). This includes your doctors, nurses, pharmacists, and dentists."
As masso said, there are potential interactions with your other medications that you should be aware of.

There are possible major interactions between your medications. If they were prescribed by one Dr. he/she is most likely to be aware of these potential interactions and has outweighed the benefits to be greater than the potential risks and would not put you in harms way.
Now, if different Drs. have prescribed these medications without the knowledge of you taking any other medication you must contact the Drs. that prescribed these meds.

Click on the link:
https://www.drugs.com/interactions-check.php?drug_list=2260-18068,2057-1348,2228-0,441-206

If you have concerns regarding the potential interactions I suggest you clarify them with your DR..