In case of an overdose, patients should contact a physician, poison control center, or emergency room. There is neither a pharmacological basis nor data suggesting an increased toxicity of the combination compared to individual components.

Methoxyflurane

Do not administer methoxyflurane to patients taking PYLERA. The concurrent use of tetracycline hydrochloride, a component of PYLERA, with methoxyflurane has been reported to result in fatal renal toxicity [See DRUG INTERACTIONS].

Disulfiram

PYLERA is contraindicated in patients who have taken disulfiram within the last two weeks. Psychotic reactions have been reported in alcoholic patients who are using metronidazole, a component of PYLERA, and disulfiram concurrently [See DRUG INTERACTIONS].

Alcohol

Alcoholic beverages or other products containing propylene glycol should not be consumed during and for at least 3 days after therapy with PYLERA. A disulfiram-like reaction (abdominal cramps, nausea, vomiting, headaches, and flushing) may occur due to the interaction between alcohol or propylene glycol and metronidazole, a component of PYLERA [See DRUG INTERACTIONS].

Renal Impairment

PYLERA is contraindicated in patients with severe renal impairment. The antianabolic action of the tetracyclines may cause an increase in blood urea nitrogen (BUN) [See ADVERSE REACTIONS]. In patients with significantly impaired renal function, higher serum concentrations of tetracyclines may lead to azotemia, hyperphosphatemia, and acidosis.

Hypersensitivity Reactions

PYLERA is contraindicated in patients with known hypersensitivity (e.g. urticaria, erythematous rash, flushing, and fever) to bismuth subcitrate potassium, metronidazole or other nitroimidazole derivatives, or tetracycline [See ADVERSE REACTIONS].

Last reviewed on RxList: 2/6/2013
This monograph has been modified to include the generic and brand name in many instances.