Lanoxin Dosage

Your dosage of Lanoxin will depend on certain factors, such as how old you are, whether you are taking other medications, and whether you are taking Lanoxin for heart failure or atrial fibrillation. This medication comes in the form of an injection or a tablet. Based on how you respond to the drug, your healthcare provider may need to adjust your dose.

An Introduction to Dosing With Lanoxin

The dose of Lanoxin® (digoxin) your healthcare provider recommends will vary, depending on a number of factors, including:
  • The condition being treated
  • Your weight
  • Your age
  • Other medications you are taking
  • Other medical conditions you may have.
As is always the case, do not adjust your dosage unless your healthcare provider specifically tells you to do so.

Lanoxin Dosage for Adults

Your healthcare provider will calculate a starting dosage of Lanoxin. For adults and children age 10 and up, the typical amounts will range from 62.5 to 500 mcg daily, depending on weight and your kidney function. 
Your healthcare provider may adjust your dose, no more often than every two weeks, based on how you respond to the medication. He or she may also measure the amount of Lanoxin in your body by testing your blood level. Clinical studies of Lanoxin in heart failure suggest that an adequate blood level for treating heart failure is between 0.5 ng per mL and 1 ng per mL. Most people will likely be maintained on a Lanoxin dosage between 0.125 mg and 0.25 mg.
It normally takes one to three weeks after you start treatment for an adequate amount of the drug to build up in your body. In some cases, your healthcare provider may decide that a more rapid response to the medication is needed. In these cases, you may be given a loading dose of Lanoxin, which means you will be given a higher initial dose.
Lanoxin injection is often used to achieve the rapid response. The total loading amount is usually given in several smaller doses, six to eight hours apart. The injections will usually be given by a trained healthcare provider, such as a nurse. You will be switched over to Lanoxin tablets for your normal maintenance treatment.
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Lanoxin Drug Information

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