Drug dose conversions

KCl Solution → Tabs

KCl 10% = 20 mEq/15 mL

Calcium salts

calcium carbonate = 40% elemental calcium
calcium citrate = 21% elemental calcium

Aminophylline - Theophylline

Aminophylline to Theophylline, Multiply by 0.8 (ATM)

Theophylline to Aminophylline, Divide by 0.8

Statins

Pitavastatin 2 mg
Rosuvastatin 5 mg
Atorvastatin 10 mg
Simvastatin 20 mg
Lovastatin 40 mg
Pravastatin 40 mg
Fluvastatin 80 mg

Statin pneumonic

Pharmacists
Rock
At
Saving
Lives and
Preventing
Flu

Metoprolol

IV:PO = 1:2.5

What is the dosage of Ethacrynic acid?

50 mg

What is the dosage of Furosemide?

40 mg

What is the dosage of Torsemide?

20 mg

What is the dosage of Bumetanide?

1 mg

What is the IV:PO ratio for Furosemide?

1:2

What is the IV:PO ratio for other loop diuretics?

1:1

Insulin

Usually 1:1

Exceptions:
NPH dosed BID → glargine dosed daily, use 80% of NPH dose

Toujeo → other forms of glargine or detemir, use 80% of Toujeo dose

Levothyroxine

IV:PO = 0.75:1

What is the dosage of Cortisone?

25 mg

What is the dosage of Hydrocortisone?

20 mg

What is the dosage of Prednisone?

5 mg

What is the dosage of Prednisolone?

5 mg

What is the dosage of Methylprednisone?

4 mg

What is the dosage of Triamcinolone?

4 mg

What is the dosage of Dexamethasone?

0.75 mg

What is the dosage of Betamethasone?

0.6 mg

Lithium

5 mL lithium citrate syrup = 300 mg lithium carbonate = 8 mEq Li ion

Loop diuretics

Ethacrynic acid 50 mg
Furosemide 40 mg
Torsemide 20 mg
Bumetanide 1 mg

Other loops IV:PO 1:1
Furosemide IV:PO 1:2

Steroids

Cortisone 25 mg
Hydrocortisone 20 mg
Prednisone 5 mg
Prednisolone 5 mg
Methylprednisone 4 mg
Triamcinolone 4 mg
Dexamethasone 0.75 mg
Betamethasone 0.6 mg

Steroid pneumonic?

C (25)
High (20)
PP (5)
Mt (4)
D (0.75)
B (0.6)

High Powered MD

Opioids

Round down to reduce risk of overdose

IV/IM:PO
Morphine 10:30
Hydromorphone: 1.5:7.5
Oxycodone: 20 mg PO

Hydrocodone: 30 mg PO
Codeine: 130:200
Fentanyl: 0.1 mg IV
Meperidine: 75:300
Oxymorphone: 1:10

What is the percentage of elemental iron in ferrous gluconate?

12%

What is the percentage of elemental iron in ferrous sulfate?

20%

What is the percentage of elemental iron in dried ferrous sulfate?

30%

What is the percentage of elemental iron in ferrous fumarate?

33%

What is the percentage of elemental iron in carbonyl iron, polysaccharide iron complex, and ferric maltol?

100%