Medicine Overview of Naivex-Tafero EM Tablet
Uses of Naivex-Tafero EM Tablet
Naivex – tafero Em is indicated for the treatment for the patients having human immunodeficiency virus type 1 (HIV-1) integrase strand transfer inhibitor (INSTI) used in combination with other antiretroviral agents to treat the HIV-1 infection in adults and pediatric patients having at least 30- 35 kg weighing.
Side effects of Naivex-Tafero EM Tablet
Consult with your doctor if you feel any following side effects:
Major side effects of Naivex – Tafero EM tablets
severe hepatomegaly with steatosis
GI events: Anorexia, abdominal distention, diarrhea, dyspepsia, flatulence
Less common side effects of Naivex – Tafero EM tablets
Black, tarry stools
Low frequency of urine
Swelling of the face, fingers, feet or lower legs
Yellow eyes and skin
Incidence not known
Clay colored stools
How to use Naivex-Tafero EM Tablet
Naivex – tafero Em recommended dose of one tablets of dolutegravir 50mg/ Emtricitabine 200mg/ Tenofovir Alafenamide 25mg once in a day taken orally.
In some case adults dose in Naivex may vary
Naivex recommended for New patients or experienced virologically suppressed patients changing to this drug combined with ripivirne given 50mg orally once a day
When coadministered with certain UGT1A or CYP450 inducers administred 50mg orally twice a day.
INSTI- experienced patients with certain INSTI- correlated resistance substitutions administer 50mg orally twice a day
In pediatric dose in Naivex
Patients weighing 30 to < 40mg administer 35mg orally once a day
Patients weighing atleast 40kg administer 50mg orally once a day.
Naivex – Tafero Em can be taken with or without food but probably taken with food to enhance exposure.
Overdose: Naivex– Tafero EM has no specific therapy for an overdose. If occurs then provide the patient with supportively with appropriate monitoring as necessary.
How to Naivex-Tafero EM Tablet works:
Naivex 50mg prevents the human immunodeficiency virus integrated by joining to the integrase active site and stop the strand transfer step of retroviral Deoxyribonucleic acid (DNA) integration that is specific for the HIV proliferation cycle.
A synthetic nucleoside coordinate of cytidine is called emtricitabine, that go via phosphorylation occurring in- vitro cell to emtricitabine 5'-triphosphate, then take part with deoxycytidine 5'-triphosphate and is incorporated into viral DNA which leads to chain termination. Emtricitabine activity against HIV-1, HIV-2 viruses and hepatitis B virus (HBV).
Tenofovir Alafenamide (Tafero Em 25mg) is a inhibitor of Nucleotide reverse transcriptase that fight against viral infection . which act as an Phosphonamidate prodrug, then Tenofovir is hydrolized in vivo and then phosphorylated to the active metabolite to form Tenofovir diphosphate. Drug will prevents the reproduction of HIV virus in human cells and then stops the HIV virus from producing new viruses and a novel ester prodrug of the antiretroviral tenofovir, use to treat HIV infection and chronic hepatitis B.Tafero 25mg cause fast chain termination and interferes with proviral DNA 27 transcription.
Absorption: rapidly absorped from GI Tract and peak plasma concentration is 2 to3 hours post dose.
Tenofovir Alafenamide (Tafero Em) Peak plasma concentration is approx 0.5hrs after the dose. Food effect: Tenofovir alafenamide with a high fat meal increase AUC compared with administration in fasted state. Emtricitabine (tafero em) bioavailability is 93% peak plasma concentration is 1-2 hrs.
Distribution: Dolutegravir plasma protein binding is >99%.Tenofovir Alafenamide (Tafero Em) has Plasma protein binding is 80% and Emtricitabine (Tafero Em) human plasma bounding is <4%
Metabolism : primarily metabolized via glucuronidation through UGT1A1 with a minor CYP3A component. Only minimal metabolized by CYP3A and Emtricitabine (Tafero Em) has limited metabolism
Elimination :Naivex reanal eliminated, 53% through feaces and 32% total oral dose excreted in urine.The terminal half life is -14 hours. Excreted by kidneys, 32% of dose in feces and<1% excreted in urine. Half life is 0.5hrs.while excretion in Emtricitabine (Tafero Em) is highly unchanged in urine and low limited in feaces and half life is 10hrs.
In Depth Information on Naivex-Tafero EM Tablet:
Expert Advice for Naivex-Tafero EM Tablets
Consult your doctor before these symptoms or conditions:
- Allergic to dolutegavir, any other medications or any consitituent in Naivex – Tafero Em rtablets.
- Treatment on dofetilide, probably doctor stop Naivex – Tafero Em
- Using other prescription or non prescription , vitamins, herbal supplements using or decided to use.
- When HIV-1 and HBV are coinfected in patients will leads to severe acute exacerbation of hepatitis B.
- Lactic acidosis and severe hepatomegaly with steatosis used in combination with other ARTs cause fatal cases.
- New onset worsening renal impairment with Tenofovir will produce acute renal failure.
- Taking antacids or laxatives which contain aluminium, magnesium, or calcium or buffered medications give the drugs 2 hours after or 6 hours after piror to take dolutegravir.
- If you or had before kidney or liver disease
- If you are pregnant or plan to pregnancy or breast feeding
Special Warnings of Naivex-Tafero EM Tablets
Naivex – Tafero Em Interaction with alcohol is unknown. Please consult the doctor.
Naivex -Tafero EM during pregnancy is probably safe to use. There are limited human studies and Animal studies have shown no adverse effect on the fetus. Please consult the doctor.The drug can be used during pregnancy If expected benefit justify the specific risk to the fetus.
Naivex – Tafero EM is excreted into human milk is unknown. It is recommended breastfed mother with HIV infection avoid breastfeed to their infants at any circumstances to get ride of transmission of infection.
During treatment with Naivex- Tafero Em , dizziness is reported has side effects. Avoid driving until u feeling well to drive.
No dosage adjustment required for patients with mild ,moderate,or severe renal impairment using Naivex - Tafero Em. Please consult with the doctor.
No dosage adjustment required for patients with mild ,moderate and no data available in severe hepatic impairment using Naivex - Tafero Em. Please consult with the doctor.
As soon as you remember take the missed dose. If time for next dose then skips the missed dose and follow the routine scheduled. Do not take more than one tablet per day. Please consult your doctor for changes in dose or new schedule for replace of missed dose.
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Brand Name : <--------------------> Naivex-Tafero EM
Category : <--------------------> HIV Drugs
Sub Category :<--------------------> Dolutegravir/ Emtricitabine/ Tenofovir Alafenamide
Company Name :<--------------------> Hetero healthcare Ltd
Ingeridents(Generic Name) :<--------------------> Dolutegravir/Emtricitabine/tenofovir Alafenamide
Dosage Form :<--------------------> 30 TABLETS
Package :<--------------------> 1X30
Strength :<--------------------> 200mg;25mg and 50mg