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Viread Dosage

Dosage form: tablet, coated; oral powder

Medically reviewed on July 31, 2018.

Recommended Dose in Adults and Pediatric Patients 12 Years of Age and Older (35 kg or more)

For the treatment of HIV-1 or chronic hepatitis B: The dose is one 300 mg VIREAD tablet once daily taken orally, without regard to food.

For patients unable to swallow VIREAD tablets, the oral powder formulation (7.5 scoops) may be used.

In the treatment of chronic hepatitis B, the optimal duration of treatment is unknown. Safety and efficacy in pediatric patients with chronic hepatitis B weighing less than 35 kg have not been established.

Recommended Dose in Pediatric Patients 2 Years to Less than 12 Years of Age

HIV-1 Infection

For the treatment of HIV-1 in pediatric patients 2 years of age and older, the recommended oral dose of VIREAD is 8 mg of tenofovir disoproxil fumarate (tenofovir DF) per kilogram of body weight (up to a maximum of 300 mg) once daily administered as oral powder or tablets.

VIREAD oral powder should be measured only with the supplied dosing scoop. One level scoop delivers 1 g of powder which contains 40 mg of tenofovir DF. VIREAD oral powder should be mixed in a container with 2 to 4 ounces of soft food not requiring chewing (e.g., applesauce, baby food, yogurt). The entire mixture should be ingested immediately to avoid a bitter taste. Do not administer VIREAD oral powder in a liquid as the powder may float on top of the liquid even after stirring. Further patient instructions on how to administer VIREAD oral powder with the supplied dosing scoop are provided in the FDA-approved patient labeling (Patient Information).

VIREAD is also available as tablets in 150 mg, 200 mg, 250 mg, and 300 mg strengths for pediatric patients who weigh greater than or equal to 17 kg and who are able to reliably swallow intact tablets. The dose is one tablet once daily taken orally, without regard to food.

Tables 1 and 2 contain dosing recommendations for VIREAD oral powder and tablets based on body weight. Weight should be monitored periodically and the VIREAD dose adjusted accordingly.

Table 1 Dosing Recommendations for Pediatric Patients 2 Years of Age and Older Using VIREAD Oral Powder
Body Weight
Kilogram (kg)
Oral Powder Once Daily
Scoops of Powder
10 to less than 12 2
12 to less than 14 2.5
14 to less than 17 3
17 to less than 19 3.5
19 to less than 22 4
22 to less than 24 4.5
24 to less than 27 5
27 to less than 29 5.5
29 to less than 32 6
32 to less than 34 6.5
34 to less than 35 7
35 or greater 7.5
Table 2 Dosing Recommendations for Pediatric Patients 2 Years of Age and Older and Weighing At Least 17 kg Using VIREAD Tablets
Body Weight
Kilogram (kg)
Tablets Once Daily
17 to less than 22 150 mg
22 to less than 28 200 mg
28 to less than 35 250 mg
35 or greater 300 mg

Chronic Hepatitis B

Safety and efficacy of VIREAD in patients younger than 12 years of age have not been established.

Dose Adjustment for Renal Impairment in Adults

Significantly increased drug exposures occurred when VIREAD was administered to subjects with moderate to severe renal impairment [See Clinical Pharmacology (12.3)]. Therefore, the dosing interval of VIREAD tablets 300 mg should be adjusted in patients with baseline creatinine clearance below 50 mL/min using the recommendations in Table 3. These dosing interval recommendations are based on modeling of single-dose pharmacokinetic data in non-HIV and non-HBV infected subjects with varying degrees of renal impairment, including end-stage renal disease requiring hemodialysis. The safety and effectiveness of these dosing interval adjustment recommendations have not been clinically evaluated in patients with moderate or severe renal impairment; therefore, clinical response to treatment and renal function should be closely monitored in these patients [See Warnings and Precautions (5.2)]. There are no data to recommend use of VIREAD tablets 150 mg, 200 mg, or 250 mg or VIREAD oral powder in patients with renal impairment.

No dose adjustment of VIREAD tablets 300 mg is necessary for patients with mild renal impairment (creatinine clearance 50–80 mL/min). Routine monitoring of estimated creatinine clearance, serum phosphorus, urine glucose, and urine protein should be performed in patients with mild renal impairment [See Warnings and Precautions (5.2)].

Table 3 Dosage Adjustment for Patients with Altered Creatinine Clearance
Creatinine Clearance
Hemodialysis Patients
50 or greater 30–49 10–29
Calculated using ideal (lean) body weight.
Generally once weekly assuming three hemodialysis sessions a week of approximately 4 hours duration. VIREAD should be administered following completion of dialysis.
Recommended 300 mg Dosing Interval Every 24 hours Every 48 hours Every 72 to 96 hours Every 7 days or after a total of approximately 12 hours of dialysis

The pharmacokinetics of tenofovir have not been evaluated in non-hemodialysis patients with creatinine clearance below 10 mL/min; therefore, no dosing recommendation is available for these patients.

No data are available to make dose recommendations in pediatric patients with renal impairment.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.