levocetirizine and Aplisol Interactions

Interactions between levocetirizine and Aplisol (tuberculin purified protein derivative)

tuberculin purified protein derivative and levocetirizine (Moderate Drug-Drug)

ADJUST DOSING INTERVAL: Antihistamines may diminish the response to diagnostic skin test antigens. Falsely insignificant or false-negative results may occur in such patients.

MANAGEMENT: Antihistamines should be discontinued approximately 2 to 4 days prior to skin testing procedures.