Treatment of the underlying cause is required, if possible. This may involve medication such as bronchodilators (for airways disease), antibiotics (for infections), glucocorticoids (for numerous causes), diuretics (for pulmonary edema), amongst others.[citation needed] Respiratory failure resulting from an overdose of opioids may be treated with the antidote naloxone. In contrast, most benzodiazepine overdose does not benefit from its antidote, flumazenil.[7] Respiratory therapy/respiratory physiotherapy may be beneficial in some causes of respiratory failure.[citation needed]