1 If there is a question as to a patient's therapeutic compliance, a serum test request for the specific drug of interest may be of help.  The presence of methadone >LOQ indicates exposure to methadone within 6 to 7 days prior to specimen collection.
Erythromycin topical Prices This erythromycin topical price guide is based on using the Drugs.com discount card which is accepted at most U.S. pharmacies. The cost for erythromycin topical topical gel 2% is around $113 for a supply of 30 grams, depending on the pharmacy you visit. Prices are for cash paying customers only and are not valid with insurance plans.
1 Benzoyl peroxide/erythromycin gel works best if used at the same time(s) each day.  If you miss a dose of benzoyl peroxide/erythromycin gel, use it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not use 2 doses at once.