--- title: Buy Isentress (Raltegravir) 400mg Tabs Online description: Isentress (Raltegravir) 400mg tablets treat HIV-1 infection. Secure your prescription-free supply from our verified online pharmacy. type: product language: en url: https://liabilis.com/order-isentress-online-en.html availability: in_stock shipping: - type: Standard Airmail price: 10.00 currency: USD area: Worldwide time: 14-21 days - type: Tracked Express price: 30.00 currency: USD area: Worldwide tracking: true time: 5-9 days price_min: 527.99 price_max: 1029.99 currency: USD offers: - name: 400mg x 60 tabs price: 527.99 - name: 400mg x 120 tabs price: 1029.99 --- # Buy Isentress (Raltegravir) 400mg Tabs Online Isentress, containing Raltegravir and developed by Merck, is an integrase strand transfer inhibitor for HIV-1 treatment in adults and children. Used in combination regimens to suppress viral load. Order Isentress 400mg tabs from our reliable online pharmacy. ## Pricing and Options | Dosage | Pack Size | Price (USD) | Price Per Pill | Status | | :--- | :--- | :--- | :--- | :--- | | **400mg** | 60 tabs | **$527.99** | $8.80 | In Stock | | **400mg** | 120 tabs | **$1029.99** | $8.58 | In Stock | [Buy Now](https://liabilis.com/order-isentress-online-en.html) ## Introduction Isentress is a tablet formulation that contains the active ingredient raltegravir, an integrase strand transfer inhibitor (INSTI) used to treat human immunodeficiency virus type 1 (HIV-1) infection. It is supplied as 400 mg tablets and belongs to the antiretroviral therapeutic class. Raltegravir works by blocking the viral integrase enzyme, preventing the integration of viral DNA into host cells. The medication is primarily indicated for adults with HIV-1 infection, both as part of initial therapy and for those who have experienced treatment failure with other regimens. ## Quick Reference Facts **Active Ingredient** : Raltegravir **Form** : Tablet 400 mg **Primary and Off-Label Uses** : Treatment-naïve HIV-1 infection in adults : Combination therapy for treatment-experienced HIV-1 infection : Investigational use as HIV pre-exposure prophylaxis (off-label) ## What is Isentress? Isentress is the generic version of medications containing the active compound raltegravir. It is marketed under brand names such as Isentress and Raltegra, and meets the same bio-equivalence standards as the reference products. Raltegravir was developed by Merck & Co. and received initial regulatory approval in 2007 in the United States for adult HIV-1 infection. The generic formulation is produced by multiple licensed manufacturers and is distributed worldwide under strict quality-control regulations. ## How Isentress Works Raltegravir inhibits the HIV-1 integrase enzyme, which is essential for inserting viral DNA into the host genome. By binding to the integrase active site, raltegravir prevents the strand-transfer step of integration, halting the replication cycle at an early stage. This mechanism yields a rapid decline in plasma HIV-RNA levels when combined with other antiretrovirals. Raltegravir is absorbed quickly after oral administration, reaching peak plasma concentrations within 1-3 hours. It is metabolized primarily by UDP-glucuronosyltransferase 1A1 (UGT1A1) and eliminated through feces and urine, resulting in a half-life of approximately 9 hours, which supports twice-daily dosing. ## Conditions Treated with Isentress - **HIV-1 infection (initial therapy)** Raltegravir combined with two nucleos(t)ide reverse transcriptase inhibitors (NRTIs) provides effective viral suppression in treatment-naïve adults, reducing the risk of disease progression. - **HIV-1 infection (treatment-experienced)** For patients with documented virologic failure on other regimens, raltegravir offers a potent option without cross-resistance to protease inhibitors or non-nucleoside reverse transcriptase inhibitors. - **Co-infection with hepatitis B or C** While not a direct antiviral for hepatitis viruses, raltegravir’s lack of hepatic metabolism makes it a safe choice for HIV patients who also have chronic liver disease. ## Is Isentress the Right Medication for You? Isentress is suitable for adults who require an INSTI as part of a fully suppressive antiretroviral regimen. It is especially appropriate for individuals who: - Prefer a twice-daily dosing schedule, - Have experienced resistance to other drug classes, - Need a medication with a low potential for drug-enzyme interactions. Contraindications include known hypersensitivity to raltegravir or any tablet excipients. Caution is advised in patients with severe hepatic impairment, as exposure may increase. Pregnant or breastfeeding individuals should discuss potential risks with their provider, although current data do not show teratogenic effects. ## Buying Isentress from [our online pharmacy](https://liabilis.com/order-isentress-online-en.html) ### Why Choose Our Service? [our online pharmacy](https://liabilis.com/order-isentress-online-en.html) provides a discreet, reliable way to obtain Isentress when local pharmacies have limited stock or high out-of-pocket costs. ### Quality & Safety Assurance We partner with licensed international pharmacies to ensure quality and authenticity. All tablets are sourced from manufacturers that comply with Good Manufacturing Practice (GMP) standards and are inspected by independent third parties. ### Pricing & Access Because Isentress is available as a generic, our pharmacy service can offer prices close to the manufacturer’s wholesale cost, delivering savings of up to 40 % compared with brand-name purchases. This makes long-term HIV therapy more affordable without compromising efficacy. ### Discreet Delivery Orders are packaged in plain, unmarked envelopes and shipped via express couriers that typically deliver within 7 days, or by standard airmail in approximately 3 weeks. All personal information is encrypted and handled in compliance with data-protection regulations. ## Use: Dosing, Missed Dose, Overdose - **Standard dosing:** 400 mg tablet taken orally twice daily, with or without food. - **Missed dose:** If you realize a dose was missed within 8 hours, take it as soon as possible. Skip the dose if it is already near the time for the next scheduled dose; do not double-dose. - **Overdose:** In the event of an accidental overdose, seek emergency medical attention. Symptoms may include nausea, vomiting, dizziness, or elevated liver enzymes. Provide supportive care as directed by clinicians. - **Administration tips:** Avoid taking raltegravir together with antacids containing aluminum or magnesium; separate the intake by at least 2 hours to prevent reduced absorption. ## Safety Information ### ⚠️ Who Should Not Take Isentress - Individuals with documented hypersensitivity to raltegravir or any tablet component. - Patients with severe hepatic impairment (Child-Pugh class C) unless under specialist supervision. ### Common Side Effects - Nausea, diarrhea, and headache (typically mild and transient). - Elevated creatine kinase; patients should report unexplained muscle pain or weakness. ### Serious Side Effects (Seek Immediate Medical Help) - Severe allergic reactions (rash, swelling, difficulty breathing). - Rhabdomyolysis presenting with muscle pain, dark urine, or rapid weakness. - Acute liver injury indicated by jaundice, dark urine, or persistent abdominal pain. ### Drug & Food Interactions - **Antacids containing aluminum/magnesium:** Reduce raltegravir absorption; separate dosing by ≥ 2 hours. - **Certain metal cations (e.g., calcium, iron supplements):** May similarly impair absorption; stagger administration. - **Drugs metabolized by UGT1A1 (e.g., atazanavir):** May increase raltegravir levels; monitor for toxicity. ## Off-Label and Investigational Uses of Isentress Some clinical studies have explored raltegravir as part of pre-exposure prophylaxis (PrEP) regimens for high-risk individuals, showing modest reductions in HIV acquisition when combined with other agents. Additionally, raltegravir has been investigated in rapid-initiation protocols for newly diagnosed patients to achieve quicker viral suppression. These applications are not FDA-approved and should only be pursued within controlled research settings or under direct specialist supervision. ## Storage & Handling - Store tablets at 20-25 °C (68-77 °F) in a dry place, away from direct sunlight. - Keep the container tightly closed to protect from moisture. - Do not use tablets after the expiration date printed on the package. - Dispose of unused medication according to local pharmaceutical waste guidelines or return to a pharmacy for safe disposal. ## Frequently Asked Questions **Practical Use & Lifestyle** - **Can I travel internationally with Isentress tablets?** Yes. Carry the medication in its original packaging with a copy of the prescription or a physician’s letter, and be aware of the import regulations of the destination country. - **Should I take Isentress with meals?** Raltegravir can be taken with or without food; however, a consistent routine (either always with meals or always on an empty stomach) helps maintain stable plasma levels. - **Is it safe to drink alcohol while on Isentress?** Moderate alcohol consumption does not affect raltegravir’s efficacy, but excessive intake can worsen liver toxicity and should be avoided. **Product & Formulation Details** - **What do Isentress tablets look like?** The generic 400 mg tablets are round, film-coated, and typically white to off-white. Appearance may vary slightly between manufacturers, but each batch bears a unique imprint for identification. - **Are there any inactive ingredients I should be aware of?** Common excipients include microcrystalline cellulose, croscarmellose sodium, and magnesium stearate. Patients with known allergies to these substances should verify the exact formulation with the supplier. **Regulatory & Safety Nuances** - **Will Isentress show up on a standard drug test?** Raltegravir is not routinely screened for in employment or athletic drug tests because it is not a performance-enhancing substance and does not produce a detectable metabolite in standard panels. - **Is Isentress safe for older adults?** Age alone is not a contraindication, but elderly patients may have reduced renal or hepatic function, which can alter drug clearance. Dose adjustments are rarely needed, but clinicians should monitor liver enzymes and renal parameters. **Scientific & Clinical Curiosity** - **How was raltegravir discovered?** Raltegravir emerged from a high-throughput screening program targeting the HIV integrase enzyme, leading to the identification of a class of integrase strand transfer inhibitors that were later optimized for oral bioavailability. - **What distinguishes raltegravir from newer INSTIs like dolutegravir?** Raltegravir has a shorter half-life and requires twice-daily dosing, whereas dolutegravir offers once-daily dosing with a higher genetic barrier to resistance. Both share the same target but differ in pharmacokinetic profiles. ## Glossary **Integrase Strand Transfer Inhibitor (INSTI)** : A class of antiretroviral drugs that block the HIV integrase enzyme, preventing viral DNA from integrating into the host genome. **Bio-equivalence** : A regulatory standard indicating that a generic product delivers the same amount of active ingredient to the bloodstream as the original brand, with comparable safety and efficacy. **UGU1A1 (UDP-glucuronosyltransferase 1A1)** : An enzyme that metabolizes raltegravir through glucuronidation, influencing the drug’s clearance from the body. ## Disclaimer The information provided about **Isentress** is intended for general educational purposes only and does not substitute professional medical counsel. All therapeutic decisions, including those concerning off-label applications, must be made under the guidance of a qualified healthcare provider. Readers are presumed to be responsible adults capable of making informed health choices. [our online pharmacy](https://liabilis.com/order-isentress-online-en.html) makes Isentress available to individuals who may encounter limited accessibility through conventional channels or who are seeking cost-effective generic alternatives. Prior to initiating, modifying, or discontinuing any medication, consult your physician or pharmacist.