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Prescription Drugs

Losec Control (Omeprazole) PIL

Quick summary: Losec Control contains omeprazole, a proton pump inhibitor used to help relieve heartburn and acid indigestion by reducing stomach acid. It is intended for adults over 18 years old and is usually...

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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: Losec Control contains omeprazole, a proton pump inhibitor used to help relieve heartburn and acid indigestion by reducing stomach acid.

It is intended for adults over 18 years old and is usually taken once daily. If symptoms persist, return, or are unusual, speak with a doctor or pharmacist.

Medical disclaimer: This article is for general information only and does not replace the patient information leaflet, pharmacist advice, or medical care. Do not use it to self-diagnose persistent, severe, or unexplained symptoms.

What is Losec Control?

Losec Control is a medicine that contains omeprazole. It belongs to a group of medicines called proton pump inhibitors (PPIs).

It is used for adults over 18 years old to help relieve symptoms linked to excess stomach acid, such as heartburn and acid indigestion.

Losec Control is supplied as tablets and is taken once daily. The original content states that each tablet contains 20 mg of omeprazole.

How does Losec Control work?

Omeprazole works by reducing the amount of acid produced in the stomach. It does this by blocking the acid-producing pumps in the stomach lining.

By lowering stomach acid, Losec Control can help ease discomfort from heartburn and acid reflux symptoms. The original content also notes that symptom improvement may be noticed after 2 to 3 days of consistent use.

What is Losec Control used for?

Based on the original content, Losec Control is used to help with:

  • Heartburn
  • Acid indigestion
  • Acid reflux symptoms
  • Symptoms associated with gastroesophageal reflux disease (GERD)

It may also help reduce ongoing acid exposure that can irritate the oesophagus.

Benefits mentioned in the original content

  • Helps relieve heartburn and acid reflux symptoms
  • Once-daily dosing
  • May begin to work within a few days
  • May support healing of acid-related irritation in the oesophagus

How should Losec Control be taken?

The original content states the following use instructions:

  1. Take one 20 mg tablet daily.
  2. Take it in the morning.
  3. Swallow the tablet whole with water.
  4. Do not chew or crush the tablet.
  5. It is preferably taken on an empty stomach.

The original content also says it is generally used for a maximum of 14 days unless a healthcare professional advises otherwise.

If you are unsure how to take it, check the package leaflet or ask a pharmacist.

Possible side effects

The original content lists the following possible side effects:

  • Headache
  • Nausea
  • Diarrhoea
  • Abdominal pain
  • Dizziness

These are described as generally mild and often temporary. If side effects persist, worsen, or feel concerning, seek advice from a healthcare professional.

The original content also notes that long-term use of PPIs such as omeprazole may be linked with other issues, including possible nutrient deficiencies and a higher risk of certain infections. This is one reason to use the medicine as directed and to review ongoing use with a clinician.

Who should be careful with Losec Control?

The original content highlights extra caution for:

  • Pregnant women — medical advice should be sought before use
  • Breastfeeding women — medical advice should be sought before use
  • Adults with persistent symptoms — symptoms that continue after the treatment period should be reviewed

If symptoms are severe, unusual, or keep returning, a doctor or pharmacist should assess whether further evaluation is needed.

Pregnancy and breastfeeding

The original content says that use during pregnancy and breastfeeding requires careful consideration and should be discussed with a healthcare professional.

It also notes that non-medicine approaches may be considered for heartburn during pregnancy, depending on individual circumstances and professional advice.

Buying Losec Control online

The original content says Losec Control may be available online in Ireland through licensed pharmacies.

If you are checking an online pharmacy, verify that it is reputable and properly licensed, and review delivery details and product information carefully. Always follow the instructions on the packaging or from a pharmacist.

What to verify in the leaflet or with a pharmacist

Because product details can vary by market and pack size, it is sensible to confirm:

  • The exact strength on your pack
  • How long the product should be used
  • Whether it is suitable for your age group
  • How to take it correctly
  • Any warnings listed in the patient leaflet

Frequently asked questions

▸ What is Losec used for?

Losec Control is used to help relieve symptoms linked to excess stomach acid, including heartburn and acid indigestion. The original content also mentions acid reflux and GERD-related symptoms.

▸ Is Losec the same as omeprazole?

Losec Control contains omeprazole, so omeprazole is the active ingredient in this product.

▸ How long does it take to work?

The original content says some people may notice improvement after 2 to 3 days of regular use.

▸ What side effects are mentioned?

The original content lists headache, nausea, diarrhoea, abdominal pain, and dizziness.

▸ Can it be used in pregnancy or while breastfeeding?

The original content advises speaking with a healthcare professional before using it during pregnancy or breastfeeding.

▸ What should I do if symptoms continue?

If symptoms continue after the treatment period or keep returning, seek advice from a doctor or pharmacist.

Safety reminder: Read the patient leaflet before use, follow the directions on your pack, and get professional advice if symptoms are severe, persistent, or different from your usual heartburn.

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: March 23, 2025 Updated: May 12, 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

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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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