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Oral Medicine

Lagevrio 200 mg Hard Capsules: Product Information

Quick summary: Lagevrio 200 mg hard capsules contain molnupiravir, an antiviral medicine used for COVID-19 in adults at risk of severe illness. This page summarises the main product information, including use, key precautions, dosing...

Educational content Use this article as a starting point for understanding the topic.
Check with a professional Ask a doctor or pharmacist before changing any medicine.
Safety first Side effects, interactions and risks depend on each person.
Medical disclaimer

This content is for educational purposes only and does not replace medical advice, diagnosis or treatment from a qualified healthcare professional.

Quick summary: Lagevrio 200 mg hard capsules contain molnupiravir, an antiviral medicine used for COVID-19 in adults at risk of severe illness. This page summarises the main product information, including use, key precautions, dosing schedule, side effects, storage, and what to check in the official leaflet.

Important: Always follow the instructions from the prescriber and the patient leaflet supplied with your medicine.

Medical disclaimer: This article is for general information only and does not replace advice from a doctor, pharmacist, or the official product leaflet. It is not a diagnosis or treatment recommendation.

What Lagevrio 200 mg hard capsules are used for

Lagevrio is a prescription antiviral medicine used to treat COVID-19 in adults who are at risk of developing severe disease. The active substance is molnupiravir.

The medicine is intended for use early in the course of infection, according to the instructions given by a healthcare professional. It is not a substitute for vaccination.

What you should know before taking Lagevrio

Before treatment starts, it is important to tell the prescriber about any medical conditions, allergies, and all other medicines you are taking.

Extra care is needed if you are pregnant, breastfeeding, or have kidney or liver problems. The original product information also notes that Lagevrio is not recommended for people under 18 years of age.

  • Tell your doctor or pharmacist about any allergies.
  • Share a full list of prescription, non-prescription, and herbal products.
  • Discuss pregnancy, breastfeeding, and any long-term health conditions.

Because this medicine is subject to additional monitoring, any suspected side effects should be reported promptly through the usual local reporting route.

How to take Lagevrio

The current product information states that the usual regimen is four 200 mg capsules taken every 12 hours for five days. Treatment should be started as soon as possible, ideally within five days of symptom onset.

Capsules are taken with water and may be taken with or without food. Do not change the schedule unless a healthcare professional tells you to do so.

Topic Product information summary
Active substance Molnupiravir
Use Treatment of COVID-19 in adults at risk of severe illness
Typical schedule Four 200 mg capsules every 12 hours for five days
When to start As early as possible, ideally within five days of symptoms

Possible side effects

Like all medicines, Lagevrio can cause side effects. The original content lists diarrhoea, nausea, and dizziness among the more common effects.

Allergic reactions can also occur. Seek urgent medical help if you notice signs such as rash, itching, swelling, or breathing difficulty.

  • Diarrhoea
  • Nausea
  • Dizziness
  • Possible allergic reaction

If you are unsure whether a symptom is related to the medicine or to COVID-19 itself, ask a healthcare professional for advice.

How to store Lagevrio

Store the capsules in a cool, dry place away from direct light and moisture. The original content states that room temperature should be below 30°C.

Keep the medicine out of the sight and reach of children and pets. Do not use it after the expiry date, and dispose of unused medicine safely.

What the pack may include

The pack usually contains the hard capsules and the patient information leaflet. The leaflet is the best place to check the exact ingredients, warnings, and instructions for use.

The original content identifies Merck Sharp & Dohme B.V. as the manufacturer. If anything on the pack is unclear, ask a pharmacist to explain it.

Key points to verify in the official leaflet

If you have been prescribed Lagevrio, it is sensible to confirm the following details in the leaflet or with a pharmacist:

  • How many capsules to take and when
  • When treatment should be started
  • What to do if a dose is missed
  • Which side effects need urgent attention
  • Any warnings relevant to pregnancy, breastfeeding, or other health conditions

Frequently asked questions

▸ What is the active ingredient in Lagevrio?

The active ingredient is molnupiravir.

▸ What is Lagevrio used for?

It is used to treat COVID-19 in adults who are at risk of severe illness.

▸ How is Lagevrio usually taken?

The product information states four 200 mg capsules every 12 hours for five days, started as early as possible after symptoms begin.

▸ Can Lagevrio be taken with food?

Yes. The original content says it may be taken with or without food.

▸ What side effects are mentioned in the product information?

Diarrhoea, nausea, dizziness, and possible allergic reactions are mentioned in the source content.

Safety reminder: If you have been prescribed Lagevrio, follow the official leaflet and your prescriber’s instructions carefully. Seek urgent help for signs of an allergic reaction or any severe or unexpected symptoms.

Editorial note Active Ingredients Online Editorial Team This article is prepared as educational medicine information for general readers. It is written to support understanding of active ingredients, medicine uses, possible side effects, precautions and safety-related questions.
Published: December 15, 2024 Updated: June 5, 2026 Educational content

Medical disclaimer

This content is for educational purposes only. It should not be used as a substitute for professional medical advice, diagnosis or treatment. Always ask a doctor, pharmacist or qualified healthcare professional before starting, stopping or changing any medicine.

Sources and verification

The following sources or official references are listed to support verification of the medicine information discussed in this article.

Final note

Medicine information can change and may vary depending on country, product formulation, patient history and professional guidance. Always check official medicine information and ask a healthcare professional for personal medical questions.

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