


Larither 40mg Capsule
Artemether (40mg)
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Larither 40mg Capsule is an antiparasitic medication. It is used in the treatment of malaria. It is not used to prevent malaria or to treat severe malaria (where it has affected the brain, lungs or kidneys).
Written By Dr. Subita Alagh, BDS,
Reviewed By Dr. Lalit Kanodia, MBA, MD Pharmacology,
Last updated on 19 Sep 2025 | 03:29 PM (IST)
Written By Dr. Subita Alagh, BDS,
Reviewed By Dr. Lalit Kanodia, MBA, MD Pharmacology,
Last updated on 19 Sep 2025 | 03:29 PM (IST)
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General Information
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Product introduction
Larither 40mg Capsule should be used in the dose and duration as advised by your doctor. Take it with food, preferably at a fixed time. Do not skip any doses and finish the full course of treatment even if you feel better. Do not take a double dose to make up for a missed dose. Simply take the next dose as planned.
Common side effects of this medicine include headache, dizziness, muscle pain, and joint pain. Please consult your doctor if these side effects persist for a longer duration. You may be monitored with blood tests once a week for 4 weeks to detect the presence of malarial parasites.
Uses of Larither Capsule
Benefits of Larither Capsule
Malaria
Larither 40mg Capsule is an antimalarial medicine and is used to treat malaria, a serious or life-threatening illness that is spread by a parasite that enters the human body by the bite of infected mosquitoes. It kills the infection causing parasite and stops further spread of the infection. Take it only as prescribed and refrain from taking any other medicines along with this medicine (unless advised by the doctor) as they may affect the absorption of this medicine. Do not use this medicine for treating any other condition without consulting your doctor.
Larither 40mg Capsule is an antimalarial medicine and is used to treat malaria, a serious or life-threatening illness that is spread by a parasite that enters the human body by the bite of infected mosquitoes. It kills the infection causing parasite and stops further spread of the infection. Take it only as prescribed and refrain from taking any other medicines along with this medicine (unless advised by the doctor) as they may affect the absorption of this medicine. Do not use this medicine for treating any other condition without consulting your doctor.
Side effects of Larither Capsule
Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of Larither
- Muscle pain
- Headache
- Dizziness
- Joint pain
How to use Larither Capsule
Take this medicine in the dose and duration as advised by your doctor. Larither 40mg Capsule is to be taken with food.
How Larither Capsule works
Larither 40mg Capsule is an antiparasitic medication. It works by producing harmful chemicals (free radicals) within the malarial parasite, thereby killing it.
All substitutes for Larither 40mg Capsule
For information purposes only. Consult a doctor before taking any medicine.
Quick tips
- Larither 40mg Capsule should be taken with food or drinks enriched with fat such as milk.
- Do not skip any doses and finish the full course of treatment even if you feel better.
- It may cause dizziness and sleepiness. Use caution while driving or doing anything that requires concentration.
- Do not take this medicine if you are in the first 3 months of pregnancy. Inform your doctor if you are breastfeeding.
- Inform your doctor if you notice flu-like symptoms such as chills, fever, muscle pains and any changes in a heartbeat.
- You may be asked for a regular blood test once a week while taking this medicine.Â
- Larither 40mg Capsule should be taken with food or drinks enriched with fat such as milk.
- Do not skip any doses and finish the full course of treatment even if you feel better.
- It may cause dizziness and sleepiness. Use caution while driving or doing anything that requires concentration.
- Do not take this medicine if you are in the first 3 months of pregnancy. Inform your doctor if you are breastfeeding.
- Inform your doctor if you notice flu-like symptoms such as chills, fever, muscle pains and any changes in a heartbeat.
- You may be asked for a regular blood test once a week while taking this medicine.
Safety advice

Alcohol
CONSULT YOUR DOCTOR
It is not known whether it is safe to consume alcohol with Larither 40mg Capsule. Please consult your doctor.

Pregnancy
CONSULT YOUR DOCTOR
Larither 40mg Capsule may be unsafe to use during pregnancy. Although there are limited studies in humans, animal studies have shown harmful effects on the developing baby. Your doctor will weigh the benefits and any potential risks before prescribing it to you. Please consult your doctor.

Breast feeding
CAUTION
Larither 40mg Capsule should be used with caution during breastfeeding. Breastfeeding should be held until the treatment of the mother is completed and the drug is eliminated from her body.

Driving
UNSAFE
Larither 40mg Capsule may decrease alertness, affect your vision or make you feel sleepy and dizzy. Do not drive if these symptoms occur.

Kidney
CAUTION
Larither 40mg Capsule should be used with caution in patients with severe kidney disease. Dose adjustment of Larither 40mg Capsule may be needed. Please consult your doctor.

Liver
CAUTION
Larither 40mg Capsule should be used with caution in patients with severe liver disease. Dose adjustment of Larither 40mg Capsule may be needed. Please consult your doctor.
Interaction with drugs
Taking Larither with any of the following medicines can modify the effect of either of them and cause some undesirable side effects
Frequently asked questions
Use of Larither 40mg Capsule should be avoided in patients who are allergic to Larither 40mg Capsule or any of its components. However, if you are not aware of any allergy or if you are using Larither 40mg Capsule for the first time, consult your doctor.
Before starting treatment with Larither 40mg Capsule, inform your doctor if you have any other health conditions like kidney- or heart-related problems. This is because certain medical conditions may affect your treatment and you may even need dose modifications. Also, let your doctor know about all the other medicines you are taking because they may affect, or be affected by, this medicine. Inform your doctor if you are pregnant or breastfeeding.
Larither 40mg Capsule is safe if used in the dose and duration advised by your doctor. Take it exactly as directed and do not skip any dose. Follow your doctor's instructions carefully and let your doctor know if any of the side effects bother you.
If you forget a dose of Larither 40mg Capsule, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and take the next scheduled dose in the prescribed time. Do not double the dose to make up for the missed one as this may increase the chances of developing side effects.
No, do not stop taking Larither 40mg Capsule without consulting your doctor even if you are feeling better. Your symptoms may improve before the infection is completely cured. Therefore, for better and complete treatment, it is advised to continue your treatment for the prescribed duration.
Fact Box
Chemical Class
Sesquiterpine lactones
Habit Forming
No
Therapeutic Class
ANTI MALARIALS
Action Class
Antimalarial- Artemisinin and Derivatives
Related lab tests
References
- Rosenthal PJ. Antiprotozoal Drugs. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. p. 911.
- Artemether. East Hanover, New Jersey: Novartis Pharmaceuticals Corporation; 2009. [Accessed 01 Apr. 2019] (online) Available from:
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Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.
Marketer details
Name: Ipca Laboratories Ltd
Address: 142 AB, Kandivli Industrial Estate, Kandivli (West), Mumbai - 400 067, Maharashtra
Address: 142 AB, Kandivli Industrial Estate, Kandivli (West), Mumbai - 400 067, Maharashtra
Vendor Details
Country of origin: India
Lab tests offered by us
- CBC (Complete Blood Count)
- FBS (Fasting Blood Sugar)
- Thyroid Profile Total (T3, T4 & TSH)
- HbA1c (Glycosylated Hemoglobin)
- PPBS (Postprandial Blood Sugar)
- Lipid Profile
- Vitamin D (25-Hydroxy)
- Urine R/M (Urine Routine & Microscopy)
- Coronavirus Covid -19 test- RT PCR
- LFT (Liver Function Test)
- KFT (Kidney Function Test)
- TSH (Thyroid Stimulating Hormone) Ultrasensitive
- ESR (Erythrocyte Sedimentation Rate)
- Uric Acid, Serum
- Vitamin B12
- CRP (C-Reactive Protein), Quantitative
- Urine C/S (Urine Culture and Sensitivity)
- Serum Electrolytes
- Serum Calcium
- Serum Creatinine
- Diabetes Screening (HbA1C & Fasting Sugar)
- KFT with Electrolytes (Kidney Function Test with Electrolytes)
- Cholesterol - Total
- Hb (Hemoglobin)
- Complete Hemogram (CBC & ESR)
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