Calculate 1 dose of the drugs ordered. 1. Order: Roxanol Oral Solution 30 mg p.o. q.4h p.r.n., pain Supply: Roxanol Oral Solution 20 mg per 5 mL Give: mL 2. Order: penicillin V potassium 1 g p.o. 1 h pre-op dental surgery Supply: penicillin V potassium oral suspension 250 mg (400,000 units) per 5 mL Give: mL 3. Order: amoxicillin 100 mg p.o. q.i.d. Supply: 80 mL bottle of Amoxil (amoxicillin) oral pediatric suspension 200 mg per 5 mL Give: mL