People who are prescribed certain antibiotics for acne and worry about acne drug resistance – even those who take them for months at a time – are unlikely to develop bacteria resistant to those drugs, according to a new study.
And it’s particularly interesting because the bacteria the authors examined – Staphylococcus aureus – is the culprit behind MRSA, an infection that is resistant to multiple antibiotics and more dangerous and harder to treat than other non-resistant infections, they note.
“A lot of the work that we’ve done over the years has often shown problems with long-term antibiotic use,” Dr. David Margolis, one of the study’s authors from the University of Pennsylvania School of Medicine in Philadelphia, told Reuters Health.
When it comes to tetracycline, the most common class of antibiotics used to treat acne, he said that “for an antibiotic that’s been around for a long time … it’s interesting to notice that Staph aureus hasn’t become overtly resistant to it.”
Acne Drug Resistance Study
Margolis and his colleagues took nose and throat swabs from 83 patients being treated for acne at their dermatology clinic to look for the presence of staph bacteria. Close to half of those patients had been treated with antibiotics, some of them for up to a year.
Between 40 and 50 percent of all patients had staph in their throats or noses, which is consistent with the frequency in the general population, the authors note. Patients who were taking antibiotics to treat their acne were less likely to have staph bacteria – probably because the acne drugs were killing nose and throat bacteria in addition to the bacteria that cause acne, Margolis said.
Only about 10 percent of all staph bacteria the authors sampled were resistant to tetracycline antibiotics. So be aware that this latest study seems to chaow that there is no Acne Drug Resistance for popular products.