Answer
Yes, taking quetiapine with clarithromycin, a cytochrome P450 3A4 inhibitor, is contraindicated.
Sources for this answer
- SEROQUEL 25 mg, 100 mg, 200 mg, 300 mg film-coated tabletsLuye Pharma Limited · emc · SmPC §4.3 Contraindications · Version 35Document updated
Sources checked