A medication order reads " 20 mg / famotidine per day for 3 weeks, then 20 mg per day every othe

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First, for the first 3 weeks (21 days), the patient needs to take 20mg of famotidine per day. Si

A medication order reads " $20 \mathrm{mg} /$ famotidine per day for 3 weeks, then 20 mg per day every other day for a month." Only $10 \mathrm{mg}$ /tablets are available. How many tablets should be dispensed for the 45 -day treatment period?