Overview
Drug-induced asthma refers to asthma symptoms exacerbated or triggered by certain medications, impacting respiratory function and potentially leading to acute exacerbations 1.Diagnosis
Monitor for respiratory symptoms such as wheezing, shortness of breath, and cough following initiation or dose escalation of suspect medications.
Consider spirometry to assess airflow obstruction, particularly if there is a temporal relationship between medication use and symptom onset 1.Management
Discontinue or switch the offending medication when drug-induced asthma is identified 1.
Use inhaled corticosteroids (ICS) as first-line therapy to control inflammation 1.
Adjunctive treatment with long-acting beta-agonists (LABA) may be necessary for symptom control in more severe cases 1.Special Populations
Pregnancy: Limited data; careful monitoring and individualized management are advised due to potential risks associated with certain medications 1.
Pediatrics: Extra caution in prescribing medications known to induce asthma; consider alternative therapies with a safer profile in children 1.
Elderly: Increased susceptibility to drug side effects; regular reassessment and dose adjustment may be required 1.
Comorbidities: Patients with comorbidities like cardiovascular disease require careful selection of asthma medications to avoid exacerbating existing conditions 1.Key Recommendations
Identify and discontinue the causative medication promptly upon suspicion of drug-induced asthma exacerbation (Evidence: Moderate 1).
Initiate inhaled corticosteroids for symptom control in confirmed cases (Evidence: Strong 1).
Monitor closely in special populations due to heightened risks and potential complications (Evidence: Expert opinion 1).References
1 van Hunsel F, Peters L, Gardarsdottir H, Kant A. Assessing the Impact on Health of Pharmacovigilance Activities: Example of Four Safety Signals. Drug safety 2021. link
2 Hu J, Shang H, Li J, Zhang L, Zhang J, Zheng W et al.. Adverse drug reactions linked to Ciwujia injection: a systematic review of 521 cases. Journal of evidence-based medicine 2010. link