INDIANAPOLIS – When adolescents present with acne that is not responding to isotretinoin, make sure to ask if they’re taking the medication when eating fatty food – which is known to increase the drug’s bioavailability, advises James R. Treat, MD, a pediatric dermatologist at Children’s Hospital of Philadelphia.
“We see lots of teenagers who are on a restrictive diet,” which is “certainly one reason they could be failing isotretinoin,” Treat said at the annual meeting of the Society for Pediatric Dermatology.
Dr James R. Treat
Often, patients say that they have been referred to him because they had no response to 20 mg or 30 mg per day of isotretinoin. But after a dose escalation to 60 mg per day, their acne worsened.
If the patient’s acne is worsening with a cystic flare, “tripling the dose of isotretinoin is not something that you should do,” Treat said. “You should lower the dose and consider adding steroids.” For evidence-based recommendations on managing acne fulminans, he recommended an article published in the Journal of the American Academy of Dermatology in 2017.
Skin picking is another common reason for failure of isotretinoin, as well as with other acne therapies. These patients may have associated anxiety, which “might be a contraindication or at least something to consider before you put them on isotretinoin,” he noted.
