Efavirenzdosage

Testing: Prior to initiation and during treatment with efavirenz, lamivudine and tenofovir disoproxil fumarate tablets, patients should be tested for hepatitis B virus infection, and estimated creatinine clearance, urine glucose, and urine protein should be obtained.

Recommended dose: One tablet taken orally once daily on an empty stomach, preferably at bedtime.

Renal Impairment: Not recommended in patients with CrCL less than 50 mL/min or patients with end-stage renal disease requiring hemodialysis.

Hepatic Impairment: Not recommended for patients with moderate or severe hepatic impairment. Use caution in patients with mild hepatic impairment.

2.1 Testing

Prior to Initiation and During Treatment with Efavirenz, Lamivudine and Tenofovir Disoproxil Fumarate Tablets Prior to initiation of efavirenz, lamivudine and tenofovir disoproxil fumarate tablets, test patients for hepatitis B virus infection. It is recommended that serum creatinine, serum phosphorus, estimated creatinine clearance, urine glucose, and urine protein be assessed before initiating efavirenz, lamivudine and tenofovir disoproxil fumarate tablets and during therapy in all patients as clinically appropriate. Monitor hepatic function prior to and during treatment with efavirenz, lamivudine and tenofovir disoproxil fumarate tablets.

2.2 Recommended

Dosage for Adult and Pediatric Patients Weighing at Least 35 kg Efavirenz, lamivudine and tenofovir disoproxil fumarate tablets are a three-drug fixed-dose combination product containing 400 mg of efavirenz (EFV), 300 mg of lamivudine (3TC), and 300 mg of tenofovir disoproxil fumarate (TDF). The recommended dosage of efavirenz, lamivudine and tenofovir disoproxil fumarate tablets in HIV-1-infected adults and pediatric patients weighing at least 35 kg is one tablet taken orally once daily. Efavirenz, lamivudine and tenofovir disoproxil fumarate tablets should be taken on an empty stomach, preferably at bedtime. Dosing at bedtime may improve the tolerability of nervous system symptoms.

2.3 Not Recommended in

Renal Impairment Because efavirenz, lamivudine and tenofovir disoproxil fumarate tablets are a fixed-dose combination tablet and cannot be dose adjusted, they are not recommended for patients with impaired renal function (creatinine clearance less than 50 mL/min) or patients with end-stage renal disease (ESRD) requiring hemodialysis.

2.4 Not Recommended in

Moderate to Severe Hepatic Impairment Efavirenz, lamivudine and tenofovir disoproxil fumarate tablets are not recommended in patients with moderate or severe hepatic impairment (Child-Pugh B or C).