Does cefdinir have pencillin in it?

No, cefdinir does not contain penicillin. Cefdinir is a cephalosporin antibiotic, which is a different class of antibiotics than penicillin. While both are used to treat bacterial infections, they have different chemical structures and mechanisms of action. Patients with penicillin Allergies may still be able to use cefdinir, but it's always best to consult with a healthcare provider first.