Calculate the total quantity and the total days supply for the following Rx: Viravan DM 4 ounces 1 tea q12h prn ------------------------------------------------------------ The doctor has prescribed Viravan DM oral suspension, but many pharmacists may dispense Tannate-V-DM suspension. But, other pharmacists may dispense Viratan-DM suspension. The doctor wants the pharmacist to dispense 4 ounces, that is, 120mL So, the total quantity to be dispensed is 120 mL as stated by the doctor. The sig says: take 1 teaspoonful by mouth every 12 hours as needed In other words, the patient ciprofloxacin 250mg 5ml oral suspension will use 1 teaspoonful twice daily, that is, the patient will use 2 teaspoonsful per day.We know that 1 tsp = 5 mL and, therefore, 2 tsp = 10 mL In this case, the patient will be taking 10 mL per day. The total days supply will be 120 divided by 10 which is 12 days. |

Calculate the total quantity and the total days supply for the following Rx: Dilantin 125mg/5mL #8 oz, 1 po bid ------------------------------------------------------------ The doctor has prescribed a 8-ounce oral suspension Dilantin 125mg/5mL But, the pharmacist may very likely dispense the generic version phenytoin 125mg/5mL oral suspension. Now, we need to convert 8 fluid ounces (oz) into milliliters (mL) 1 oz = 30 mL and then 8 oz = 240 mL So, the total quantity dispensed will be 240 mL The sig says: take 1 teaspoonful by mouth twice daily Notice that 1 tsp = 5 mL In other words, the patient will take 5 mL twice daily, that is, 10 mL per day. The total days supply will be 240 mL divided by 10 mL which is 24 days. |

Calculate the total quantity and the total days supply for the following Rx: Augmentin 200 sig: 3/4 tsp bid x 10 days ------------------------------------------------------------ The doctor has prescribed Augmentin 200mg/5mL oral suspension, but the pharmacist may dispense the generic version amoxicillin/clavulanate 200mg/5mL oral suspension. The sig says: take 3/4 teaspoonful by mouth twice daily for 10 days Notice that 1 tsp = 5 mL The patient will be taking 3/4 5mL 2 10 which is 75mL So, the total quantity will be 75 mL The total days supply is 10 days as stated by the doctor. |

Calculate the total quantity and the total days supply for the following Rx: Dicel #60 mL 1/4 q8h prn ------------------------------------------------------------ Dicel is an oral suspension. The total quantity to be dispensed is 60 mL as stated by the doctor. The sig says: take one-fourth teaspoonful by mouth every 8 hours as needed Notice that 1 tsp = 5 mL In other words, the patient will take 1/4 5 3 which is 3.75mL per day. The total days supply will be 60mL divided by 3.75mL which is 16 days. |

What are the total quantity and the total days supply for the following drug: Motrin 6 oz sig: 1 1/2 tsp po q6h for fever ------------------------------------------------------------ The doctor has prescribed Motrin 100mg/5mL oral suspension, but most pharmacists will dispense the generic version Ibuprofen 100mg/5mL oral suspension. Motrin and Ibuprofen oral suspensions are over-the-counter drugs, but pharmacists may dispense Ibuprofen suspension from within the pharmacy because the Medicaid insurance may pay for it. Now, we need to convert 6 oz into mL We know that 1 oz = 30 mL and, then, 6 oz = 180 mL So, the total quantity to be dispensed is 180 mL The sig says: take one and one-half teaspoonsful by mouth every six hours for fever The patient needs 1 and 1/2 teaspoonsful, that is, 1 and 0.5 teaspoonsful, that is, 1.5 teaspoonsful. In other words, the patient will take 1.5 teaspoonsful every six hours, that is, the patient will take 1.5 teaspoonsful four times daily. We know that 1 teaspoonful is equal to 5 mL Then, the patient will take 1.5 5 4 which is 30 mL So, the patient will take 30 mL per day. The total days supply will be 180 mL divided by 30 mL which is 6 days. |

What are the total quantity and the total days supply for the following drug: Ibuprofen 100mg/5mL sig: 7.5 mL po qid qty: 8 ------------------------------------------------------------ The doctor has prescribed Ibuprofen 100mg/5mL oral suspension. Ibuprofen oral suspensions are over-the-counter drugs, but pharmacists may dispense Ibuprofen suspension from within the pharmacy because the Medicaid insurance may pay for it. The doctor has written quantity 8 and, in turn, the pharmacist will assume 8 oz, that is, 8 fluid ounces. We know that 1 oz = 30 mL and then 8 oz = 240 mL So, the total quantity to be dispensed is 240 mL The sig says: take 7.5 mL by mouth four times daily The patient will take 7.5 mL 4 daily, that is, the patient will take 30mL per day. The total days supply will be 240 mL divided by 30 mL which is 8 days. |

Calculate the total quantity and the total days supply for the following drug: Ibuprofen 100mg/5mL susp disp: 200cc 5 mg to 10 mg per kg bid child weighs 13 kg ------------------------------------------------------------ The doctor has prescribed the generic drug Ibuprofen oral suspension. This prescription was written for a child who weighs 13 kg (kilograms) The total quantity to be dispensed is 200 mL (cc) as stated by the doctor. The sig says: give 5 mg to 10 mg per kilogram by mouth twice daily Notice that the doctor says '5 mg to 10 mg', but the medication is in the form of liquid (oral suspension). In turn, we need to convert 5mg and 10mg into mL The ratio given above is 100mg/5mL, that is, 5mL/100mg Then, we need to convert 5 mg into mL x / 5mg = 5mL / 100mg x = (5mg 5mL) / 100mg x = 25mL / 100 x = 0.25 mL The patient will take 0.25mL per kilogram. We know the patient weighs 13kg and then the patient will take 0.25 13 = 3.25mL Therefore, the patient will take 3.25 mL twice daily. Then, we need to convert 10 mg into mL x / 10mg = 5mL / 100mg x = (10mg 5mL) / 100mg x = 50mL / 100 x = 0.5 mL The patient will take 0.5mL per kilogram. We know the patient weighs 13kg and then the patient will take 0.5 13 = 6.5mL Therefore, the patient will take 6.5 mL twice daily. In turn, the final sig will say: give 3.25 mL to 6.5 mL by mouth twice daily Now, we need to calculate the total days supply. We know the child may take up to 6.5mL twice daily, that is, 6.5 2 = 13mL We also know the total quantity is 200 mL and then the total days supply will be 200mL divided by 13mL which is 15 days. |

What are the total quantity and the total days supply for the following Rx: Cipro 250mg/5 #100 sig: 1 tsp bid x10d 0RF ------------------------------------------------------------ The doctor has prescribed Cipro 250mg/5mL oral suspension, but there are three ways of writing the same medication: The doctor may write Cipro 5% or Cipro 5g/100mL or Cipro 250mg/5mL But now, how do we know that Cipro 5g/100mL is the same as Cipro 250mg/5mL The sig says: take 1 teaspoonful by mouth twice daily for 10 days |

What are the total quantity and the total days supply for the following Rx: Cipro 500mg/5mL #100 sig: 1 tsp bid x10d ------------------------------------------------------------ The doctor has prescribed Cipro 500mg/5mL oral suspension, but there are three ways of writing the same medication: The doctor may write Cipro 10% or Cipro 10g/100mL or Cipro 500mg/5mL But now, how do we know that Cipro 10g/100mL is the same as Cipro 500mg/5mL The sig says: take 1 teaspoonful by mouth twice daily for 10 days |

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