SYMTUZA is a brand name for Darunavir, supplied as a tablet. The medicine, its uses, side effects and dosage are the same regardless of brand.
Used for: SYMTUZA® (darunavir/cobicistat/emtricitabine/tenofovir alafenamide) is indicated as a complete regimen for: • the treatment of human immunodeficiency virus type 1 (HIV-1) infection in adults and adolescents (aged 12 years and older with body weight at least 40 kg) and with no known mutations associated with resistance…
Verbatim from this product's HC label. Tap a section to expand.
and 14 CLINICAL TRIALS. 1 Pediatrics Pediatrics (≥12 and <18 years of age with body weight ≥40 kg) Pediatrics (≥12 years of age with body weight ≥40 kg): Based on the data submitted and reviewed by Health Canada, the safety and efficacy of SYMTUZA in pediatric patients has been established.
Therefore, Health Canada has authorized an indication for pediatric use. (see 4 DOSAGE AND ADMINISTRATION and 7 WARNINGS AND PRECAUTIONS). 2 Geriatrics Geriatrics (≥65 years of age) Limited information is available on the use of SYMTUZA® in patients aged 65 and over (see 4 DOSAGE AND ADMINISTRATION, 7 WARNINGS AND PRECAUTIONS, and 10 CLINICAL PHARMACOLOGY).
Therefore, SYMTUZA® should be used with caution in elderly patients. 2 CONTRAINDICATIONS SYMTUZA® is contraindicated in patients who are hypersensitive to darunavir, cobicistat, emtricitabine, tenofovir alafenamide, or to any ingredient in the formulation or component of the container.
For a complete listing, see the
). There is no specific antidote for overdose with SYMTUZA®. Treatment of overdose with SYMTUZA® consists of general supportive measures including monitoring of vital signs and observation of the clinical status of the patient. Since darunavir and cobicistat are highly protein bound, dialysis is unlikely to be beneficial in significant removal of the active substances.
Darunavir Single doses up to 3,200 mg of the oral solution of darunavir alone and up to 1,600 mg of the tablet formulation of darunavir co-administered with ritonavir have been administered to healthy volunteers without untoward symptomatic effects.
Since darunavir is highly protein bound, it is unlikely that it will be significantly removed by hemodialysis or peritoneal dialysis. Cobicistat Limited clinical experience with cobicistat is available at doses higher than the therapeutic dose.
In two studies, a single dose of cobicistat 400 mg was administered to a total of 60 healthy subjects. No severe adverse reactions were reported. The effects of higher doses are not known. Since cobicistat is highly protein bound, it is unlikely that it will be significantly removed by hemodialysis or peritoneal dialysis.
0 Page 8 of 64 Emtricitabine Limited clinical experience is available at doses higher than the therapeutic dose of EMTRIVA. In one clinical pharmacology study, single doses of emtricitabine 1200 mg (6 times the dose in GENVOYA/DESCOVY) were administered to 11 subjects.
No severe adverse reactions were reported. The effects of higher doses are not known. 5 hours of emtricitabine dosing. It is not known whether emtricitabine can be removed by peritoneal dialysis. Tenofovir Alafenamide Limited clinical experience is available at doses higher than the therapeutic dose of tenofovir alafenamide.
A single supratherapeutic dose of 125 mg tenofovir alafenamide was administered to 48 healthy subjects. No serious adverse reactions were reported. The effects of higher doses are unknown. Tenofovir is efficiently removed by hemodialysis with an extraction coefficient of approximately 54%.
). 2 Geriatrics Geriatrics (≥65 years of age) Limited information is available on the use of SYMTUZA® in patients aged 65 and over (see 4 DOSAGE AND ADMINISTRATION, 7 WARNINGS AND PRECAUTIONS, and 10 CLINICAL PHARMACOLOGY). Therefore, SYMTUZA® should be used with caution in elderly patients.
2 CONTRAINDICATIONS SYMTUZA® is contraindicated in patients who are hypersensitive to darunavir, cobicistat, emtricitabine, tenofovir alafenamide, or to any ingredient in the formulation or component of the container. For a complete listing, see the 6 DOSAGE FORMS, STRENGTHS, COMPOSITION AND PACKAGING section of the Product Monograph.
SYMTUZA® is contraindicated in patients with severe (Child-Pugh Class C) hepatic insufficiency. Darunavir and cobicistat are both inhibitors of the cytochrome P450 3A (CYP3A) isoform. Administration of SYMTUZA® is contraindicated with drugs that are highly dependent on CYP3A for clearance and for which elevated plasma concentrations are associated with serious and/or life-threatening events (narrow therapeutic index).
Darunavir and cobicistat are both substrates of the cytochrome P450 3A (CYP3A) isoform. Co-administration of SYMTUZA® is contraindicated with potent CYP3A inducers as it may lead to lower exposures of darunavir and cobicistat and potential loss of efficacy of darunavir and development of resistance.
4 Drug-Drug Interactions, Table 6). 0 Page 5 of 64 Table 1: Drugs that are Contraindicated with SYMTUZA® Drug Class Drugs within Class that are Contraindicated with SYMTUZA® Alpha 1-Adrenoreceptor Antagonist alfuzosin Antiarrhythmics/Antianginals amiodarone, dronedarone, ivabradine, lidocaine (systemic) Anti-coagulants apixaban, dabigatran, rivaroxaban Anti-convulsants carbamezepine, phenobarbital, phenytoin Anti-gout colchicine (in patients with renal and/or hepatic impairment) Antimycobacterial rifampin Ergot Derivatives dihydroergotamine, ergonovine, ergotamine Hepatitis C Virus Direct-Acting Antivirals elbasvir/grazoprevir Herbal Products St.
08/2022 TABLE OF CONTENTS Sections or subsections that are not applicable at the time of authorization are not listed. RECENT MAJOR LABEL CHANGES ......................................................................................
2 TABLE OF CONTENTS ........................................................................................................... 2 PART I: HEALTH PROFESSIONAL INFORMATION ...............................................................
4 1 INDICATIONS ............................................................................................................... 1 Pediatrics .............................................................................................................
2 Geriatrics ............................................................................................................. 4 2 CONTRAINDICATIONS ................................................................................................
4
Not medical advice. Always read the patient information leaflet and follow your prescriber or pharmacist.
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It is not known whether tenofovir can be removed by peritoneal dialysis. For management of a suspected drug overdose, contact your regional poison control centre. 6 DOSAGE FORMS, STRENGTHS, COMPOSITION AND PACKAGING Table –Dosage Forms, Strengths, Composition and Packaging Description SYMTUZA® Tablets SYMTUZA® (darunavir/cobicistat/ emtricitabine/ tenofovir alafenamide) 800/150/200/10-mg film coated tablets are supplied as a yellow to yellowish-brown capsule-shaped tablet of 22 mm × 10 mm, debossed with “8121” on one side and “JG” on the opposite side.
SYMTUZA® tablets are supplied in a white, high density polyethylene (HDPE) bottle with a silica gel desiccant pouch and a polypropylene child resistant closure. Each bottle contains 30 tablets. 2 mg tenofovir alafenamide hemifumarate • Tablet core: colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, microcrystalline cellulose.
• Film-coating: polyethylene glycol (macrogol), polyvinyl alcohol (partially hydrolyzed), talc, titanium dioxide, yellow ferric oxide. 0 Page 9 of 64 7 WARNINGS AND PRECAUTIONS Please see 3 SERIOUS WARNINGS AND PRECAUTIONS BOX. General Patients with HIV-1 harboring mutations SYMTUZA® should not be used in antiretroviral-experienced patients with HIV-1 harboring any darunavir resistance-associated mutations (such as V11I, V32I, L33F, I47V, I50V, I54M, I54L, T74P, L76V, I84V, L89V) in HIV-1 protease or the K65R mutation in HIV-1 reverse transcriptase (see 15 MICROBIOLOGY), or with suspected darunavir or tenofovir resistance, in virologically suppressed patients if no genotype is available.
Interactions with medicinal products SYMTUZA® can cause and/or is subject to drug interactions which may be life-threatening or result in lack of efficacy (see 2 CONTRAINDICATIONS, 7 WARNINGS AND PRECAUTIONS, General and
John’s wort (Hypericum perforatum) HMG-CoA Reductase Inhibitors lovastatin, simvastatin Other Lipid Modifying Agents lomitapide Inhaled Beta Agonist salmeterol Neuroleptics lurasidone, pimozide Opioid Antagonist naloxegol PDE-5 Inhibitor sildenafil (for treatment of pulmonary arterial hypertension) Platelet Aggregation Inhibitor ticagrelor Sedatives/Hypnotics triazolam 3 SERIOUS WARNINGS AND PRECAUTIONS BOX Serious Warnings and Precautions Post-treatment Exacerbation of Hepatitis SYMTUZA® is not approved for the treatment of chronic hepatitis B virus (HBV) infection and the safety and efficacy of SYMTUZA® have not been established in patients coinfected with HIV-1 and HBV.
Discontinuation of SYMTUZA® therapy in patients coinfected with HIV-1 and HBV may be associated with severe acute exacerbations of hepatitis due to the emtricitabine or tenofovir alafenamide components of SYMTUZA®. Hepatic function should be monitored closely with both clinical and laboratory follow-up for at least several months in patients who are coinfected with HIV-1 and HBV and discontinue SYMTUZA®.
1 Special Populations). 1 Dosing Considerations SYMTUZA® is a fixed dose combination of 800 mg of HIV protease inhibitor darunavir, 150 mg of pharmacokinetic enhancer cobicistat, 200 mg of nucleoside reverse transcriptase inhibitior emtricitabine and 10 mg nucleotide reverse transcriptase inhibitor tenofovir alafenamide.
After therapy with SYMTUZA® has been initiated, patients should not alter the dosage or discontinue therapy without instruction of their healthcare provider. Separate pharmaceutical forms of the components of SYMTUZA® are available, either alone or in combination products.
Therefore, if patients are unable to swallow the SYMTUZA® tablet, require a dose modification of any of the components of SYMTUZA®, or discontinue treatment with SYMTUZA® alternatively, the pharmaceutical forms of the individual components may be used.
Please refer to the respective prescribing information for proper use of the products. 2 Recommended Dose and Dosage Adjustment Adults The recommended dose regimen is one tablet taken once daily with food. SYMTUZA® should be taken with food.
3 Pharmacokinetics, Effects of Food on Oral Absorption). SYMTUZA® should be swallowed whole without breaking or crushing to ensure administration of the entire dose. Pediatrics (≥12 years and <18 years of age with body weight ≥40 kg In adolescent patients aged 12 years and older weighing at least 40 kg, the recommended dosage is one tablet taken once daily with food.
No dose has been established for SYMTUZA® for pediatric patients 3-11 years of age or weighing less than 40 kg. SYMTUZA® should not be used in pediatric patients below 3 years of age. In pre-clinical studies of darunavir, toxicity and mortality was observed in juvenile rates dosed with darunavir (from 20 mg/kg to 1000 mg/kg) up to days 23 and 26 of age (see 7 WARNINGS AND PRECAUTIONS, 10 CLINICAL PHARMACOLOGY, Special Populations and Conditions, Pediatrics and 16 NON-CLINICAL TOXICOLOGY, Reproductive and Developmental Toxicity).
Geriatric Patients Limited information is available on the use of SYMTUZA® in patients 65 years of age and older. Therefore, SYMTUZA® should be used with caution in elderly patients (see. 1 INDICATIONS, 7 WARNINGS AND PRECAUTIONS and 10 CLINICAL PHARMACOLOGY).
Pregnancy and postpartum SYMTUZA® is not recommended for use during pregnancy because of substantially lower exposure of darunavir and cobicistat during pregnancy. Therapy with SYMTUZA® should not be […]