Answer
Cream and shampoo usually have few systemic interactions. Tablets have many important interactions, so prescriptions, over-the-counter treatments and supplements must be reviewed.
Sources for this answer
- NHSNHS · NHS medicine guidance
- Ketoconazole Esteve 200 mg Tablets — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.