Meflotas Tablet (Mefloquine) | Used for Malaria Prevention and Treatment
Meflotas Tablet (Mefloquine) is an antimalarial medication primarily used to treat and prevent malaria caused by the parasite Plasmodium falciparum and Plasmodium vivax. Mefloquine works by interfering with the ability of the malaria parasite to break down and digest hemoglobin, thus preventing its growth and reproduction within red blood cells.
Product Overview
Meflotas Tablet is a highly potent, systemic antimalarial medication formulated for both the prevention and treatment of malaria infections. Containing the active pharmaceutical compound Mefloquine, this medication is specifically engineered to target and eliminate the intra-erythrocytic (blood-stage) parasites responsible for malaria transmission. It is primarily prescribed for travelers visiting regions where malaria is endemic, particularly areas with widespread resistance to older antimalarial drugs like chloroquine. Administered orally, Meflotas provides reliable structural protection and therapeutic defense against complex protozoal infections, though its use requires careful clinical screening due to its specific central nervous system profile.
Product Composition
- Active Pharmaceutical Ingredient: Mefloquine Hydrochloride (standardly formulated at 250mg per individual oral tablet)
- Dosage Form: Solid oral tablets, designed for robust gastrointestinal absorption and characterized by an exceptionally long therapeutic elimination half-life
- Core Excipients: Formulated with functional binding agents and stabilizers including microcrystalline cellulose, lactose monohydrate, crospovidone, ammonium calcium alginate, and magnesium stearate
Product Specification
| Product Parameter | Details |
| Brand Name | Meflotas Tablet |
| Active Ingredient | Mefloquine Hydrochloride |
| Therapeutic Class | Anti-infective Agents / Antimalarials |
| Available Strength | 250mg |
| Primary Indications | Prophylaxis (prevention) and treatment of acute, uncomplicated malaria infections caused by Plasmodium falciparum and Plasmodium vivax |
Mechanism of Action
- Destruction of Blood Schizonts: Mefloquine acts as a highly effective blood schizonticide. It targets the asexual blood stages of the malaria parasites (Plasmodium falciparum and Plasmodium vivax), disrupting their life cycle inside the host's red blood cells.
- Disruption of Parasitic Vacuoles: The compound concentrates within the food vacuoles of the intra-erythrocytic parasite. It interferes with the parasite's ability to degrade hemoglobin and safely process toxic byproducts, leading to cellular toxicity within the pathogen.
- Inhibition of Nutrient Transport: Mefloquine alters the integrity of the parasitic membranes, stopping the transport of essential nutrients and causing rapid metabolic starvation of the microorganism.
- Zero Activity Against Liver Stages: The drug does not eliminate the latent hepatic (liver) stages of Plasmodium vivax, meaning a secondary medication is typically required to prevent relapses from liver-dwelling parasites.
Key Benefits
- Offers exceptional chemoprophylactic protection for travelers entering high-risk zones, especially regions with verified chloroquine-resistant strains of Plasmodium falciparum.
- Features a highly convenient once-weekly dosing schedule for malaria prevention, which significantly improves traveler compliance compared to daily alternatives.
- Provides a dependable, fast-acting oral treatment pathway to clear active, uncomplicated blood-stage malaria infections and support patient recovery.
- Exhibits a prolonged presence in the bloodstream, ensuring continuous, extended protection against sudden exposure during and immediately after travel.
Precautions
Important Precautions for Meflotas Tablet (Mefloquine)
Meflotas Tablet is an antimalarial medicine used for prevention and treatment of malaria. It should be used carefully due to its effects on the nervous system and potential psychiatric side effects.
| Precaution Area | Details |
|---|---|
| Mental Health | May cause anxiety, depression, or mood changes. |
| Neurological Effects | Can cause dizziness, sleep disturbances, or seizures (rare). |
| Driving | May impair alertness and coordination. |
| Heart Conditions | Use cautiously in cardiac conduction disorders. |
| Pregnancy | Use only if clearly prescribed by a doctor. |
| Liver Function | May require caution in liver impairment. |
| History of Psychiatric Illness | Not recommended in severe psychiatric disorders. |
Important Safety Advice
- Take exactly as prescribed for malaria prevention or treatment
- Do not self-medicate for travel without medical advice
- Take with food to reduce stomach upset
- Avoid alcohol during treatment
- Monitor mood and behavior changes carefully
When to Avoid Meflotas Tablet
- Known hypersensitivity to Mefloquine
- History of severe depression, psychosis, or anxiety disorders
- Seizure disorders (epilepsy)
- Severe cardiac conduction abnormalities
Monitoring Requirements
- Mental health and mood monitoring
- Neurological symptoms (dizziness, confusion)
- Liver function tests if long-term use
- Response to malaria treatment or prevention
General Note
- Neuropsychiatric side effects can be significant in some patients
- Always use under strict medical supervision
- Report any mood changes, hallucinations, or severe dizziness immediately
Usage
This systemic antimalarial medication requires strict adherence to its timing protocols to ensure adequate protective levels in the bloodstream. Because of its exceptionally long clearance time from the body, any adjustments or side effect assessments must be managed carefully.
| Parameter | Clinical Guidelines |
| Treatment Dosage | For active uncomplicated malaria, a total therapeutic dose of 1250mg to 1500mg is administered, typically split into two doses separated by 6 to 8 hours to minimize stomach upset. |
| Administration Rule | Must be swallowed whole with a full glass of water, preferably immediately after a main meal. Never take this medication on an empty stomach. |
| Neuropsychiatric Switch | If symptoms like sudden anxiety, depression, confusion, or severe dizziness occur during preventative use, stop taking the medication immediately and consult a physician for an alternative antimalarial. |
Uses
Chemoprophylaxis of Malaria: Indicated for the weekly prevention of malaria infections in individuals traveling to or residing in high-risk geographic regions, specifically those with documented multi-drug resistant strains.
Treatment of Uncomplicated Malaria: Prescribed as a rapid oral therapy to clear active, asexual blood-stage infections caused by Plasmodium falciparum and Plasmodium vivax.
Defense Against Chloroquine-Resistant Strains: Utilized as a reliable therapeutic shield in areas where standard, older antimalarial therapies are no longer effective due to parasite mutation.
Post-Travel Suppression Therapy: Employed during the mandatory 4-week post-travel window to eradicate any late-emerging blood parasites that may have entered the system toward the end of a trip.
Side Effects
Possible Side Effects of Meflotas Tablet (Mefloquine)
Meflotas Tablet is an antimalarial medicine used for prevention and treatment of malaria. It may cause side effects, especially related to the nervous system and gastrointestinal tract.
| Side Effect Type | Details |
|---|---|
| Common Effects | Nausea, vomiting, abdominal pain. |
| Nervous System | Dizziness, headache, sleep disturbances. |
| Psychiatric Effects | Anxiety, mood changes, vivid dreams. |
| Severe Neuro Effects | Confusion, hallucinations (rare). |
| Cardiac Effects | Irregular heartbeat (rare). |
| General Effects | Fatigue, weakness. |
Common Side Effects
- Nausea or vomiting
- Headache
- Dizziness
- Abdominal discomfort
Less Common But Important Effects
- Sleep disturbances or insomnia
- Vivid dreams or nightmares
- Anxiety or irritability
- Mood changes
When to Be Careful
- Severe dizziness or confusion
- Hallucinations or unusual behavior
- Chest pain or irregular heartbeat
- Severe anxiety or depression
General Note
- Neuropsychiatric side effects may occur in some individuals
- Take with food to reduce stomach upset
- Seek medical advice if severe symptoms develop
- Always use under medical supervision, especially for prophylaxis
FAQs
Q: What is Meflotas Tablet used for?
A: This medication is a potent antimalarial drug. It is prescribed to prevent malaria in travelers visiting high-risk regions, especially areas with known resistance to chloroquine. It is also used to treat active, uncomplicated malaria infections.
Q: How should Meflotas be taken for malaria prevention?
A: For prevention, the standard dose is one tablet taken once a week. You must start taking it 1 to 2 weeks before entering the malaria-endemic area, continue taking it weekly during your stay, and keep taking it for 4 consecutive weeks after leaving the area.
Q: Why must this medication be taken with food and water?
A: Each tablet must be swallowed whole with a full glass of water, preferably after a main meal. Taking it with food significantly enhances gastrointestinal absorption and helps minimize common side effects like nausea or stomach upset.
Q: What are the serious neuropsychiatric warnings associated with Mefloquine?
A: Mefloquine can cause severe central nervous system side effects. These include severe anxiety, depression, paranoia, hallucinations, confusion, dizziness, and unusual vivid dreams. If you experience any changes in your mood, mental state, or balance, contact a doctor immediately to switch medications.
Q: Who should not take Meflotas Tablets?
A: This medication is strictly contraindicated for individuals with a history of active depression, generalized anxiety disorder, schizophrenia, or any other major psychiatric condition. It must also be avoided by anyone with a personal history of seizures or convulsions.
Q: Does this drug protect against all types of malaria?
A: While highly effective against the active blood stages of malaria, it does not kill the dormant liver stages of certain parasites like Plasmodium vivax. If you are exposed to these specific strains, additional medication may be needed later to prevent a future relapse.
Q: What should I do if I throw up after taking a dose?
A: If vomiting occurs within 30 minutes of taking a tablet, you should take a full second dose. If vomiting occurs 30 to 60 minutes after ingestion, you should take an additional half-tablet. If vomiting persists, seek immediate medical advice.
Q: Can I drink alcohol while taking this medication?
A: It is highly recommended to avoid alcohol. Both alcohol and mefloquine affect the central nervous system, and combining them can worsen dizziness, impair coordination, and increase the risk of neurological or psychological side effects.
Interactions
Drug Interactions of Meflotas Tablet (Mefloquine)
Meflotas Tablet (Mefloquine) may interact with medicines that affect the nervous system, heart rhythm, or liver metabolism. These interactions can increase side effects such as dizziness, neuropsychiatric symptoms, or cardiac issues.
| Medicine or Product Type | Interaction Details |
|---|---|
| Antidepressants | May increase risk of mood changes or neuropsychiatric effects. |
| Antipsychotics | Can increase risk of CNS and cardiac side effects. |
| Anticonvulsants | May alter seizure threshold or drug effectiveness. |
| Beta-blockers | Can increase risk of heart rhythm disturbances. |
| Antiarrhythmic drugs | May increase risk of QT interval abnormalities. |
| Other Antimalarials | Increased risk of toxicity or reduced effectiveness. |
| Alcohol | May worsen dizziness and CNS side effects. |
Important Interaction Advice
- Avoid combining with other drugs that affect heart rhythm
- Inform doctor about any psychiatric or seizure medications
- Use caution with medicines affecting the brain or mood
- Avoid alcohol during treatment or prophylaxis
General Guidance
- Monitor for dizziness, mood changes, or irregular heartbeat
- Dose adjustments may be needed in combination therapy
- Always provide full medication history before starting treatment
- Medical supervision is essential in high-risk patients
Additional Note
- Mefloquine has notable neuropsychiatric interaction potential, so careful screening for drug combinations is essential before use
| Manufacturer | : | Intas Pharma, India |
| Trade Name | : | Lariam |
| Generic Search | : | Mefloquine |
| Strength | : | 250mg |
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