Citanest HCl Plain Disease Interactions

Prilocaine has induced methemoglobinemia resulting in respiratory distress and cyanosis. Therapy with prilocaine topical should be administered cautiously to patients with or predisposed to methemoglobinemia. If life-threatening or severe methemoglobinemia develops, methylene blue infused at a dosage of 1 to 2 mg/kg body weight will rapidly reverse or improve the condition, except in G-6-PD-deficient patients.

Prilocaine topical is absorbed through intact skin and mucosal membranes. Prolonged exposure, large doses, and/or application to compromised skin or mucosa can result in elevated plasma concentrations of prilocaine. Prilocaine is metabolized by the liver and to some extent by the kidney. The pharmacokinetic disposition of prilocaine is altered by changes in hepatic and renal function. Therapy with prilocaine topical should be administered cautiously and dosing modified for patients with compromised hepatic and renal function.