Final answer:
To meet the daily dosage of Rifampin 600 mg with 300 mg capsules, the client needs to take two capsules.
Step-by-step explanation:
If a client has been prescribed a daily dosage of Rifampin 600 mg and the available drug is in the form of a 300 mg capsules, to meet the recommended daily dose, the client will need to take two capsules. This is found by dividing the total daily dose needed, 600 mg, by the amount per capsule, 300 mg, which equals 2 capsules.