7.2 Inhibitors of CYP3A4 and CYP2D6 The concomitant use of Hydrocodone Polistirex and Chlorpheniramine Polistirex and CYP3A4 inhibitors, such as macrolide antibiotics (e.g., erythromycin), azole-antifungal agents (e.g.
Source: FDA drug label - hydrocodone polistirex and chlorpheniramine polistirex