Overmedication

Overmedication

Overmedication is an inappropriate medical treatment that occurs when a patient takes unnecessary or excessive medications. This may happen because the prescriber is unaware of other medications the patient is already taking, because of drug interactions with another chemical or target population, because of human error, or because of undiagnosed medical conditions. Sometimes, the extra prescription is intentional (and sometimes illegal), as in the case of the use of excessive psychoactive medications as "chemical restraints" for elderly patients in nursing homes.[1]

Overmedication can also occur when consumers take more medication than is prescribed or as labeled on over-the-counter products—either intentionally or unintentionally—or when consumers unknowingly take both prescription and nonprescription drug products containing the same active ingredients. For example, overmedication can occur when a prescription drug like Vicodin, which contains both hydrocodone and acetaminophen, is taken along with the nonprescription product Tylenol, which contains acetaminophen as the active ingredient. In other words, overmedication can be caused by both prescribers and consumers or their caretakers.

Another important instance of overmedication occurs when consumers are either prescribed or take additional prescribed or OTC drugs which produce the same or similar therapeutic effects. For instance, if a patient is taking a prescription strength ibuprofen product and also uses a naprosyn product—whether prescription or OTC strength—this, too, can constitute overmedication, can be dangerous, and can be costly to the patient in overall health care costs. Oftentimes consumers/patients overmedicate themselves by taking their medications at shorter intervals than prescribed or than container labels specify. As a result, medications may accumulate at higher levels, causing undesired side effects, sometimes serious, even fatal.

Effects

Side effects of overmedication depend on the medication, the dose, other medications, and underlying medical conditions. Adverse reactions may include:

  • Slowed reaction: speech, movement and thought
  • Sleeplessness
  • Increased confusion
  • Unsteady gait
  • Constipation
  • Dry mouth
  • Blurry vision
  • Increased agitation
  • Uncontrollable repetitive movement of the tongue, feet, hands and trunk
  • Hallucinations

Sources


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