Prevalence of study drugs used in the adult Swedish population (≥18 years of age) and corresponding demographics, 15th August to 15th December, 2011.

1Standard Deviation.2Defined as a seven-digit Anatomical Therapeutic Chemical (ATC) code. The remaining proportions were prescribed from a specialist care setting.3Mean dispensed Daily Defined Dose.4Cytochrome P450 enzyme (CYP) 3A4.5In addition to affect CYP3A4 erythromycin is a potent inhibitor of p-glycoprotein.6Non Applicable.