Panel Votes Down OTC Cold Ingredient
FDA’s Nonprescription Drugs Advisory Committee 9/12 voted 16 to 0 that current scientific data do not support the effectiveness of the over-the-counter monograph dosage of orally administered phenylephrine (10mg) as a nasal decongestant. Phenylephrine is the active ingredient found in a number of common OTC cold and allergy treatments, such as Sudafed PE and Benadryl Allergy Plus Congestion.
University of California San Diego professor Jennifer Le said while voting no that oral phenylephrine is not efficacious for the symptomatic treatment of nasal congestion associated with both the common cold and allergic rhinitis. She recommended that FDA reconsider the drug’s labeling as Generally Recognized as Safe and Effective “since this may lead to consumer confusion about the efficacy of the drug.” She also expressed concern over the drug’s poor efficacy that equates to a safety issue for delaying effective treatment.
Also voting no was National Cancer Institute senior investigator William D. Figg, who said the “financial toxicity” associated with an ineffective drug was overwhelming. Earlier during the meeting, the panel was told that almost $2 billion annually is being spent on OTC remedies containing phenylephrine. “I agree it probably precludes any further studies to increase the dose with such a low bioavailability and a high first-pass metabolism,” he added.
The ball is now in FDA’s court to decide the OTC monograph status of the active ingredient.