Dynastat Dosage/Direction for Use

Parecoxib may be administered as single or multiple IV or IM doses on a regular or as needed schedule. After initiation of therapy, dosage should be adjusted based on patient response.
Parecoxib is only indicated for patients with a need for parenteral therapy and for whom a similar benefit could not be obtained from alternative oral therapy. It is recommended that patients be transitioned to alternative oral therapy as soon as clinically indicated.
As the cardiovascular (CV) risk of cyclooxygenase-2 (COX-2) specific inhibitors may increase with dose and duration of exposure, the shortest duration possible and the lowest effective daily dose should be used.
Management of Acute Pain: The recommended single or initial dose for treatment of acute pain is 40 mg, administered either IV or IM, followed by 20 mg every 6 to 12 hours, as required. The maximum daily dosage is 60 mg. The IV bolus injection may be given directly into a vein or into an existing IV line. The IM injection should be given slowly and deeply into the muscle.
Concomitant Use with Opioid Analgesics: Opioid analgesics can be used concurrently with parecoxib, dosing as described previously. In clinical trials, the daily requirement for opioids was significantly reduced (20%-40%) when co-administered with parecoxib. An optimal effect is achieved when parecoxib is given prior to opioid administration. In all clinical assessments parecoxib was administered at a fixed time interval whereas the opioids were administered on as needed basis (PRN).
Elderly: No dosage adjustment is generally necessary. However, for elderly patients weighing less than 50 kg, it is advisable to reduce the initial dose of parecoxib by 50%. The maximum daily dose should be reduced to 40 mg in elderly patients weighing less than 50 kg.
Hepatic Impairment: No dosage adjustment is necessary in patients with mild hepatic impairment (Child-Pugh Class A). Treatment with parecoxib should be initiated at the lowest recommended dose and the maximum daily dose should be reduced to 40 mg in patients with moderate hepatic impairment (Child-Pugh Class B).
Patients with severe hepatic impairment (Child-Pugh Class C) have not been studied. The use of parecoxib in these patients is contraindicated (see Contraindications and Pharmacology: Pharmacokinetics under Actions).
Renal Impairment: In patients with severe renal impairment (creatinine clearance <30 mL/minute), or patients who may be predisposed to fluid retention, parecoxib should be initiated at the lowest recommended dose and the patient's kidney function closely monitored.
Co-administration with Fluconazole: When parecoxib is co-administered with fluconazole, the lowest recommended dose of parecoxib should be used.
Paediatric Patients: Safety and efficacy have not been established in children under 18 years of age. Therefore, parecoxib is not recommended in these patients.