Combination drug

A combination drug is a fixed-dose combination (FDC) that includes two or more active pharmaceutical ingredients (APIs) combined in a single dosage form, which is manufactured and distributed in fixed doses.[1] Terms like "combination drug" or "combination drug product" can be common shorthand for a FDC product (since most combination drug products are currently FDCs), although the latter is more precise if in fact referring to a mass-produced product having a predetermined combination of drugs and respective dosages (as opposed to customized polypharmacy via compounding[2]). And it should also be distinguished from the term "combination product" in medical contexts, which without further specification can refer to products that combine different types of medical products—such as device/drug combinations as opposed to drug/drug combinations.[3] Note that when a combination drug product (whether fixed-dose or not) is a "pill" (i.e., a tablet or capsule), then it is also a kind of "polypill" or combopill.

Initially, fixed-dose combination drug products were developed to target a single disease (such as with antiretroviral FDCs used against AIDS). However, FDCs may also target multiple diseases/conditions, such as Caduet (atorvastatin/amlodipine) or Exforge (amlodipine/valsartan). In cases of FDCs targeting multiple conditions, such conditions might often be related—in order to increase the number of prospective patients who might be likely to utilize a given FDC product. This is because each FDC product is mass-produced, and thus typically requires having a critical mass of potentially applicable patients in order to justify its manufacture, distribution, stocking, etc.

Advantages

In addition to simply being a means of facilitating the general advantages of combination therapy, specific advantages of fixed-dose combination (FDC) drug products include:

Disadvantages

See also

References

  1. Roger Collier,"Reducing the “pill burden”", CMAJ February 7, 2012 vol. 184 no. 2 First published January 9, 2012, doi: 10.1503/cmaj.109-4076.
  2. "5-in-1 PolyPill Treatment May Prevent Heart Disease", BAYVIEW PHARMACY'S PRESCRIPTION COMPOUNDING BLOG,Apr 01, 2009 @ 08:09 AM.
  3. Combination Products-U.S. Food and Drug Administration
  4. Peter A. Netland,"Glaucoma Medical Therapy-Principles and Management"

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