Ispagula powder: an allergen in the work environment.

Area of Science:

• Occupational Health
• Allergology
• Pharmacology

Background:

• Bulk laxatives derived from ispagula powder are generally considered safe for oral administration.
• However, occupational exposure to ispagula husks can lead to allergic reactions in susceptible individuals.

Purpose of the Study:

• To investigate the incidence and nature of allergic reactions to ispagula husks in a pharmaceutical factory setting.
• To assess the effectiveness of occupational health measures in mitigating these allergies.

Main Methods:

• Observational study of pharmaceutical workers involved in packing ispagula husks.
• Clinical assessment of allergic symptoms including rhinitis, conjunctivitis, and asthma.
• Intracutaneous and provocation testing to confirm type 1 allergy.
• Monitoring of new sensitization cases following implementation of dust control measures.

Main Results:

• Twenty-seven out of 64 workers developed allergic symptoms attributed to ispagula husk exposure.
• Type 1 allergy was confirmed via diagnostic tests.
• Post-implementation of dust reduction measures, only one new sensitization case occurred over 24 months.
• Five similar cases were noted among nursing staff administering ispagula laxatives.

Conclusions:

• Occupational exposure to ispagula husk dust poses a risk of type 1 allergic reactions.
• Effective dust control is crucial for preventing occupational allergies in pharmaceutical settings.
• Minimizing dust exposure significantly reduces the incidence of ispagula-induced allergies.