Trichomoniasis is
the most prevalent nonviral sexually transmitted infection. Metronidazole and
tinidazole are the only medications that are recommended by the Centers for
Disease Control for the treatment of trichomoniasis. Alternative therapies are
not standardized and limited in efficacy. Skin-prick testing to metronidazole
is not validated. Three metronidazole desensitization protocols have been
described, including one intravenous and two oral protocols.
Centers for
Disease Control and Prevention published a study documenting a total of 127
patients with suspected metronidazole hypersensitivity, among whom 15 patients
underwent metronidazole desensitization2. Among those 15 patients, 7 patients
underwent a 14-dose intravenous protocol3 and 8 patients underwent an 8-dose
oral protocol5. All 15 patients achieved infection cure. More recently, a 12-
dose modified oral desensitization protocol was described by Gendelman and
colleagues in 2014. For more information Insights in Allergy, Asthma &
Bronchitis.Read more.......