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Macy, 2012 Multiple drug intolerance syndrome: prevalence, clinical characteristics, and management.


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Withdrawal syndrome makes many hypersensitive to neurologically active medications. Allergy reseachers from Kaiser find iatrogenic multiple drug intolerance syndrome in their patient database.

 

Ann Allergy Asthma Immunol. 2012 Feb;108(2):88-93. Epub 2011 Dec 9.

Multiple drug intolerance syndrome: prevalence, clinical characteristics, and management.

Macy E, Ho NJ.

 

Source

 

Southern California Permanente Medical Group, Department of Allergy, San Diego Medical Center, San Diego, California, USA. eric.m.macy@kp.org

 

Abstract at http://www.ncbi.nlm.nih.gov/pubmed/22289726

 

BACKGROUND:

 

Population-based data on the demographics and clinical characteristics of patients with multiple unrelated drug class intolerances noted in their medical records are lacking.

 

OBJECTIVES:

 

To provide population-based drug "allergy" incidence rates and prevalence, and to identify individuals with multiple drug intolerance syndrome (MDIS) defined by 3 or more unrelated drug class "allergies," and to provide demographic and clinical information on MDIS cases.

 

METHODS:

 

Electronic medical record data from 2,375,424 Kaiser Permanente Southern California health plan members who had a health care visit and at least 11 months of health care coverage during 2009 were reviewed. Population-based drug "allergy" incidence rates and prevalence were determined for 23 unrelated medication classes.

 

RESULTS:

 

On January 1, 2009, 478,283 (20.1%) health plan members had at least one reported "allergy." Individuals with a history of at least 1 "allergy" and females, in general, reported higher population-based new "allergy" incidence rates. Multiple drug intolerance syndrome was present in 49,582 (2.1%). The MDIS cases were significantly older, 62.4 ± 16.1 years; heavier, body mass index 29.3 ± 7.1; and likely to be female, 84.9%, compared with average health plan members. They had high rates of health care utilization, medication usage, and new drug "allergy" incidence. They sought medical attention for common nonmorbid conditions.

 

CONCLUSIONS:

 

Multiple drug intolerance syndrome is in part iatrogenic. It is associated with overweight elderly women who have high rates of health care and medication usage. Urticarial syndromes only explain a small fraction of MDIS cases. Multiple drug intolerance syndrome is associated with anxiety, but not predominately with immunoglobulin E (IgE)-mediated allergy or life-threatening illness. Multiple drug intolerance syndrome can be managed by medication avoidance and judicious rechallenge.

 

 

 

Medpage Today article summarizing the study's findings is at http://survivingantidepressants.org/index.php?/topic/1862-overprescription-of-antidepressants-contributes-to-multiple-drug-sensitivities/

 

Other comparisons between these two groups of patients (no recorded allergies versus four or more reported allergies) found these differences during the study year:

[note: This looks like an error, the list below must be the reported-allergies group vs no recorded allergies.]

 

Courses of antibiotics, 0.80 versus 0.27

Courses of narcotics, 0.64 versus 0.17

Courses of antidepressants, 0.11 versus 0.04

Outpatient visits, 26.6 versus 6.1

Emergency department visits, 1.5 versus 0.3

Days of hospitalization, 12.4 versus 1.1

This is not medical advice. Discuss any decisions about your medical care with a knowledgeable medical practitioner.

"It has become appallingly obvious that our technology has surpassed our humanity." -- Albert Einstein

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