Though the color change in generic drugs may mean no difference in efficacy of the active ingredient it may mean a change in non-active ingredients and can include changes such as the addition of gluten-containing fillers that can cause illness and may cause a patient to stop taking the drug.
Changes in Pill Appearance Linked to Drug Discontinuation in MI Patients — Physician’s First Watch
Changes in Pill Appearance Linked to Drug Discontinuation in MI Patients
By Amy Orciari Herman
Patients who begin generic medications after myocardial infarction frequently experience changes in pill color or shape with subsequent refills, and such changes might increase the risk for drug discontinuation, according to an Annals of Internal Medicine study.
Using a large insurance database, U.S. researchers studied over 11,000 MI patients who began treatment with generic cardiovascular drugs (beta-blockers, ACE-inhibitors, angiotensin-receptor blockers, or statins) after hospital discharge. Within the first year after discharge, 29% had a change in pill shape or color unrelated to a dosage change.
Some 4600 episodes of medication discontinuation were matched with 20,000 episodes of medication continuation. After multivariable adjustment, the odds ratio for medication discontinuation after a change in pill color or shape was 1.49.
The researchers write: "Cardiologists and other prescribers of cardiovascular medications should proactively warn patients about the potential for these changes and their lack of clinical import, especially in light of the growing prevalence of use of generic drugs."