 Treatment D Period 2: 500 mg clarithromycin 1 x 500 mg tablets administered at Hour 0 and Hour 12, under fasting conditions, approximately every 12 hours, for 4 days within 1 hour of dosing times on Day 1, with 18 mg deflazacort 3 x 6 mg tablets coadministered at Hour 0 on the morning of Day 4. The final dose of clarithromycin will be given at Hour 12 in the evening of Day 4. 