I want to take Claritin for allergies. I’m on Zoloft, Wellbutrin, vistaril (spelling), and trazodone. Any major drug interactions?

Good to check. You can use a drug interaction checker whenever you have questions about drug-drug interactions or drug - food interactions. Here is 1 option (Drugs.Com): https://www.drugs.com/drug_interactions.php Your pharmacist is also a good source of info.