Mectizan is a high-potency antiparasmatic medication containing Ivermectin. It works through a glutamate-gated chloride channel mechanism: it binds selectively to these specific channels in the nerve and muscle cells of invertebrates. This leads to an increase in the permeability of the cell membrane to chloride ions, causing hyperpolarization of the nerve or muscle cell, which results in the paralysis and death of the parasite. In humans, it is particularly effective against the microfilariae (larvae) of Onchocerca volvulus and the mites responsible for scabies.
In Nigeria, Mectizan (by MSD/Merck) is a cornerstone of public health, primarily used for the elimination of Onchocerciasis (River Blindness) and the treatment of Lymphatic Filariasis. It is available through specialist clinics and registered pharmacies like Sanlive Pharmacy, ensuring you receive authentic, laboratory-verified tablets stored in cool, dry conditions (below 30°C). This is critical because the Ivermectin molecule is sensitive to the Nigerian humidity; exposure to extreme heat or moisture can cause the tablets to become brittle or lose their antiparasitic potency, potentially failing to clear the infection.
Important: This is a high-precision tropical medication. The "Empty Stomach" Rule: You must take Mectizan with a full glass of water on an empty stomach, either 1 hour before or 2 hours after a meal; food (especially high-fat meals) significantly changes how the drug is absorbed. The "Weight-Based" Dosing: The dose is strictly calculated based on your body weight (usually 150 to 200 mcg/kg); you must not exceed the dose prescribed by your physician. The "Mazzotti Reaction" Warning: When treating River Blindness, the rapid death of larvae can cause an inflammatory reaction (itching, rash, or fever); this is a sign the drug is working but requires medical monitoring.
Mectizan 3mg Tablets are primarily used for:
Treating Onchocerciasis (River Blindness): Killing the microfilariae to prevent skin disease and permanent vision loss.
Managing Strongyloidiasis: Clearing intestinal infections caused by the roundworm Strongyloides stercoralis.
Treating Crusted Scabies: Managing severe, resistant scabies infestations (often in combination with topical creams).
Lymphatic Filariasis Control: Reducing the transmission of the parasites that cause Elephantiasis.
Providing High Selectivity: Targeting the nervous system of parasites while remaining safe for the human central nervous system at recommended doses.
Offering Long-Term Action: Often requiring only a single dose or a once-yearly dose for community-wide disease control.
Supporting Epidemiological Health: Playing a vital role in the WHO-led programs to eliminate neglected tropical diseases in Nigeria.
This medication is intended for:
Adults and children weighing at least 15kg with confirmed parasitic infections.
Individuals living in endemic areas under the supervision of a Physician or Public Health Officer.
Not recommended for: Children weighing less than 15kg or pregnant women (safety data is limited). It is strictly contraindicated for individuals with a known hypersensitivity to Ivermectin. Use with extreme caution in patients with Asthma, as the drug can occasionally worsen respiratory symptoms. Consult our pharmacist if you are taking Warfarin, as Ivermectin may mildly increase your bleeding risk. Consult your doctor if you have Loa Loa (African Eye Worm) infection; in patients with very high levels of Loa Loa, Ivermectin can trigger a serious neurological reaction (encephalopathy).
Administered via Oral route as a single dose.
The "Water" Tip: Drink at least 250ml of water with your dose to ensure the tablets reach the stomach quickly for uniform absorption.
The "Single Dose" Rule: For most infections, a single dose is all that is required. However, for scabies, a second dose is often taken 7 to 14 days later to kill any newly hatched mites.
Consistency is Vital: If you are part of a mass-drug administration (MDA) program, ensure you take your dose annually to help break the cycle of infection in your community.
The "Eye Exam" Note: If you are being treated for Onchocerciasis, you should have a follow-up eye exam to monitor your vision.
If a dose is missed (for a multi-dose schedule), take it as soon as you remember, but do not "double up" on the 3mg tablets.
Mectizan is generally well-tolerated, but the death of the parasites may cause:
Pruritus (Itching) and Rash: The most common reaction to the dying larvae in the skin.
Swelling of the face, hands, or feet (Edema).
Fever and Muscle Pain: Usually occurring within the first 48 hours of treatment.
Dizziness, headache, or a temporary drop in blood pressure when standing up.
Mild eye irritation or redness.
Rare but serious: Severe Neurological Symptoms (only in patients with high Loa Loa counts).
Rare: Tender lymph nodes in the neck or groin.
Seek medical advice immediately if you experience a high fever, severe headache, confusion, or a sudden change in your vision after taking the tablets.
MSD (Merck Sharp & Dohme) – A global pharmaceutical leader, ensuring every 3mg tablet of Mectizan meets international standards for purity and stability.
100% Authentic: Guaranteed original MSD stock with verified NAFDAC registration.
Quality-Controlled Storage: Kept in a cool, low-humidity environment to prevent tablet degradation.
Professional Guidance: Advice from licensed pharmacists on "Body-Weight Dosing" and managing the Mazzotti reaction.
Secure Delivery: Fast and reliable shipping to your home, office, or rural health center across Nigeria.
Can I use it for "Head Lice"?
While Ivermectin is sometimes used for resistant lice, the 3mg tablets should only be used for this purpose under the specific instruction of a doctor.
Does it kill "Adult" River Blindness worms?
No. Mectizan kills the microscopic larvae (microfilariae) but not the adult worms. This is why the treatment is often repeated once or twice a year for the lifespan of the adult worm.
Is it used for "COVID-19"?
In Nigeria, and globally, major health organizations (WHO/FDA) have stated that Ivermectin should not be used for COVID-19 outside of clinical trials, as there is insufficient evidence it is effective for this virus.
Where can I purchase Mectizan 3mg in Nigeria?
You can fill your physician's or specialist's prescription for verified Mectizan at Sanlive Pharmacy & Stores for guaranteed product integrity and professional tropical health support.
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