Package Insert: Information for the User

Omeprazol Viatris 20 mg Hard Gastroresistant Capsules EFG

Read this package insert carefully before starting to take this medication, because it contains important information for you.

• Keep this package insert, as you may need to read it again.
• If you have any questions, consult your doctor or pharmacist.
• This medication has been prescribed to you alone, and you should not give it to others even if they have the same symptoms as you, as it may harm them.
• If you experience any adverse effects, consult your doctor or pharmacist, even if they are not listed in this package insert. See section 4.

1.What is Omeprazol Viatris and for what it is used

2.What you need to know before starting to take Omeprazol Viatris

3.How to take Omeprazol Viatris

4.Possible adverse effects

5.Storage of Omeprazol Viatris

6.Contents of the package and additional information

Omeprazol Viatris contains the active ingredient omeprazole. It belongs to a group of medicines called “proton pump inhibitors”. These medicines act by reducing the amount of acid produced by the stomach.

Omeprazole is used to treat the following diseases:

In adults:

• “Gastroesophageal reflux disease” (GERD). In this disorder, stomach acid passes into the esophagus (the tube that connects the throat with the stomach), causing pain, inflammation, and heartburn.
• Ulcers in the upper part of the small intestine (duodenal ulcer) or in the stomach (gastric ulcer).
• Ulcers infected by a bacteria called “Helicobacter pylori”. If you have this disease, it is possible that your doctor will prescribe antibiotics to treat the infection and allow the ulcer to heal.
• Ulcers caused by certain medicines called NSAIDs (nonsteroidal anti-inflammatory drugs). Omeprazole can also be used to prevent the formation of ulcers if you are taking NSAIDs.
• Excess acid in the stomach caused by a tumor in the pancreas (Zollinger-Ellison syndrome).

In children:

Children over 1 year of age and≥ 10 kg

• “Gastroesophageal reflux disease” (GERD). In this disorder, stomach acid passes into the esophagus (the tube that connects the throat with the stomach), causing pain, inflammation, and heartburn.
  In children, the symptoms of the disease may include the return of stomach contents to the mouth (regurgitation), vomiting, and inadequate weight gain.

Children over 4 years of age and adolescents

• Ulcers infected by a bacteria called “Helicobacter pylori”. If your child has this disease, it is possible that your doctor will prescribe antibiotics to treat the infection and allow the ulcer to heal.

Do not take Omeprazol Viatris

• If you are allergic to omeprazole or any of the other ingredients of this medication (listed in section 6).
• If you are allergic to medications that contain proton pump inhibitors (e.g., pantoprazole, lansoprazole, rabeprazole, esomeprazole).
• If you are taking a medication that contains nelfinavir (used for HIV infection).

Do not take omeprazole if you fall into any of the above categories.If you are unsure, consult your doctor or pharmacist before taking Omeprazol Viatris.

Warnings and precautions

Consult your doctor or pharmacist before starting to take Omeprazol Viatris.

Severe skin reactions have been reported in relation to omeprazole treatment, including Stevens-Johnson syndrome, toxic epidermal necrolysis, drug reaction with eosinophilia and systemic symptoms (DRESS), and acute generalized pustular psoriasis (PEGA). Stop taking omeprazole and consult your doctor immediately if you experience any of these symptoms related to severe skin reactions described in section 4.

Omeprazole may mask symptoms of other diseases.Therefore, if you experience any of the following symptoms before starting to take omeprazole or during treatment, consult your doctor immediately:

• Unexplained weight loss and difficulty swallowing.
• Stomach pain or indigestion.
• Starting to vomit food or blood.
• Black stools (blood-stained feces).
• Severe or persistent diarrhea, as omeprazole has been associated with a slight increase in infectious diarrhea.
• Severe liver problems.
• If you have ever had a skin reaction after treatment with a similar medication to omeprazole for reducing stomach acid.
• If you are scheduled to have a specific blood test (Cromogranin A).

If you take omeprazole for a long period (more than 1 year), your doctor will likely perform regular check-ups. Inform your doctor of any new or unusual symptoms and circumstances whenever you visit.

Taking a proton pump inhibitor like omeprazole, especially for more than a year, may slightly increase the risk of fractures in the hip, wrist, or spine. Inform your doctor if you have osteoporosis or are taking corticosteroids (which can increase the risk of osteoporosis).

If you experience a skin rash, especially in sun-exposed areas, consult your doctor as soon as possible, as it may be necessary to discontinue omeprazole treatment. Remember to mention any other symptoms you notice, such as joint pain.

Omeprazole may cause kidney inflammation. Signs and symptoms may include decreased urine volume or blood in the urine and/or hypersensitivity reactions such as fever, skin rash, and joint stiffness. Inform your doctor of these signs.

This medication may affect how your body absorbs vitamin B12, especially if you need to take it for a long time. Contact your doctor if you notice any of the following symptoms, which may indicate low vitamin B12 levels:

• Extreme fatigue or lack of energy.
• Tickling.
• Pain or redness in the tongue or mouth ulcers.
• Muscle weakness.
• Visual disturbances.
• Memory problems, confusion, or depression.

Children

Some children with chronic diseases may require long-term treatment, although it is not recommended. Do not administer this medication to children under 1 year or <10kg.

Other medications and Omeprazol Viatris

Inform your doctor or pharmacist if you are taking, have taken recently, or may need to take any other medication. This includes medications that can be purchased without a prescription. This is because omeprazole may affect the mechanism of action of some medications, and some medications may affect omeprazole.

Do not take omeprazole if you are taking a medication that contains nelfinavir (used for HIV infection).

Inform your doctor or pharmacist if you are taking any of the following medications:

• Ketoconazole, itraconazole, posaconazole, or voriconazole (used to treat fungal infections).
• Digoxin (used to treat heart problems).
• Diazepam (used to treat anxiety, relax muscles, or epilepsy).
• Phenytoin (used to treat epilepsy). If you are taking phenytoin, your doctor will need to monitor you when starting or stopping omeprazole treatment.
• Medications used to prevent blood clotting, such as warfarin or other vitamin K antagonists. Your doctor will need to monitor you when starting or stopping omeprazole treatment.
• Rifampicin (used to treat tuberculosis).
• Atazanavir (used to treat HIV infection).
• Tacrolimus (in cases of organ transplantation).
• St. John's Wort (Hypericum perforatum) (used to treat mild depression).
• Cilostazol (used to treat intermittent claudication).
• Saquinavir (used to treat HIV infection).
• Clopidogrel (used to prevent blood clots).

• Erlotinib (used to treat cancer).

• Methotrexate (chemotherapy medication used in high doses to treat cancer) - if you are taking a high dose of methotrexate, your doctor will need to temporarily stop omeprazole treatment.

If your doctor has prescribed you antibiotics amoxicillin and clarithromycin to treat ulcers caused by Helicobacter pylori infection, it is essential to inform your doctor of any other medications you are taking.

Taking Omeprazol Viatris with food and drinks

You can take your capsules with food or on an empty stomach. See section 3.

Pregnancy, breastfeeding, and fertility

If you are pregnant or breastfeeding, or think you may be pregnant, consult your doctor or pharmacist before using this medication.

Omeprazole passes into breast milk but is unlikely to affect the baby when used in therapeutic doses.

Your doctor will decide if you can take omeprazole while breastfeeding.

Driving and operating machinery

Omeprazole is unlikely to affect your ability to drive or use tools or machines. However, side effects such as dizziness and visual disturbances (see section 4) may occur. If they do, you should not drive or operate machinery.

Omeprazol Viatris contains saccharose and sodium

This medication contains saccharose. If your doctor has told you that you have an intolerance to certain sugars, consult with them before taking this medication.

This medication contains less than 1 mmol of sodium (23 mg) per dose, which is essentially "sodium-free."

Follow exactly the administration instructions of this medication indicated by your doctor or pharmacist. In case of doubt, consult your doctor or pharmacist again.

Your doctor will tell you how many capsules to take and for how long. This will depend on your condition and age.

The recommended dose is described below.

Use in adults:

Treatment of symptoms of GERD, such asheartburn and acid regurgitation:

• If your doctor checks that you have mild damage to the esophagus, the recommended dose is 20 mg once a day for 4‑8 weeks. Your doctor may prescribe a dose of 40 mg for another 8 weeks if the esophagus has not yet healed.

• The recommended dose once the esophagus has healed is 10 mg once a day.
• If you do not have damage to the esophagus, the recommended dose is 10 mg once a day.

Treatment ofulcers in the upper part of the intestine(duodenal ulcer):

• The recommended dose is 20 mg once a day for 2 weeks. Your doctor may prescribe the same dose for another 2 weeks if the ulcer has not yet healed.
• If the ulcer does not heal completely, the dose may be increased to 40 mg once a day for 4 weeks.

Treatment ofstomach ulcers(gastric ulcer):

• The recommended dose is 20 mg once a day for 4 weeks. Your doctor may prescribe the same dose for another 4 weeks if the ulcer has not yet healed.
• If the ulcer does not heal completely, the dose may be increased to 40 mg once a day for 8 weeks.

Preventionof the reappearanceof stomach and duodenalulcers:

• The recommended dose is 10 mg or 20 mg once a day. Your doctor may increase the dose to 40 mg once a day.

Treatment of stomach and duodenal ulcers caused byNSAIDs(nonsteroidal anti-inflammatory drugs):

• The recommended dose is 20 mg once a day for 4 to 8 weeks.

Prevention of stomach and duodenal ulcersduring the administration ofNSAIDs:

• The recommended dose is 20 mg once a day.

Treatment ofulcers causedby the infectionbyHelicobacter pyloriandprevention of their reappearance:

• The recommended dose is 20 mg of omeprazole twice a day for a week.

• Your doctor will also indicate that you take two antibiotics from the following: amoxicillin, clarithromycin, and metronidazole.

Treatment of excess acid in the stomach caused by atumor in the pancreas (Zollinger-Ellison syndrome):

• The recommended dose is 60 mg per day.
• Your doctor will adjust the dose according to your needs and will also decide how long you should take the medication.

Use in children and adolescents:

Treatment of symptoms of GERD, such asheartburn and acid regurgitation

• Children over 1 year of age who weigh more than 10 kg can take omeprazole. The dose for children is based on body weight, and your doctor will decide the correct dose.

Treatment ofulcerscausedby the infectionbyHelicobacter pyloriand prevention of their reappearance:

• Children over 4 years old can take omeprazole. The dose for children is based on body weight, and your doctor will decide the correct dose.
• Your doctor will also prescribe two antibiotics for your child, amoxicillin, and clarithromycin.

How to take this medication

• It is recommended to take the capsules in the morning.
• You can take your capsules with food or with an empty stomach.
• Swallow the capsules whole with half a glass of water. Do not chew or crush the capsules, as they containcoated granulesthat prevent the medication from breaking down in the stomach acid. It is essential not to damage thegranules.

What to do if you or your child have trouble swallowing the capsules

• If you or your child have trouble swallowing the capsules:
• • Open the capsules and swallow the contents directly with half a glass of water or pour the contents into a glass of water without gas, a sour fruit juice (e.g., apple, orange, or pineapple), or a compote of apple.
  • Always shake the mixture just before drinking it (the mixture will not be transparent). Then, drink the mixture immediately or within 30 minutes.
  • To ensure that all the medication has been taken, fill the glass of water to half, rinse it well, and drink the water. The solid parts contain the medication; do not chew or crush them.

If you take more Omeprazol Viatris than you should

If you have taken more omeprazole than prescribed by your doctor, consult your doctor or pharmacist immediately.You can also call the Toxicological Information Service, phone 91 562 04 20, indicating the medication and the amount ingested.

If you forget to take Omeprazol Viatris

If you forget to take a dose, take it as soon as you remember. However, if there is little time left for the next dose, skip the missed dose. Do not take a double dose to compensate for the missed doses.

If you interrupt the treatment with Omeprazol Viatris

Do not stop taking omeprazole without first talking to your doctor or pharmacist.

If you have any other questions about the use of this medication, ask your doctor or pharmacist.

Like all medicines, this medicine may cause side effects, although not everyone will experience them.

If you experience any of the following rare (may affect up to 1 in 1,000 people) or very rare (may affect up to 1 in 10,000 people) but serious side effects, stop taking omeprazole and consult your doctor immediately:

• Sudden hissing sounds while breathing (sudden sibilance), swelling of the lips, tongue, and throat or body, skin rash, fainting, or difficulty swallowing (severe allergic reaction). (rare)
• Redness of the skin with blistering or peeling. Blisters may also appear intensely and bleeding in the lips, eyes, mouth, nose, and genitals. This may be "Stevens-Johnson syndrome" or "toxic epidermal necrolysis".(very rare)
• Generalized rash, elevated body temperature, and inflammation of lymph nodes (DRESS syndrome or pharmacological hypersensitivity syndrome). (rare)
• A red, scaly, and generalized rash with bumps under the skin and blisters accompanied by fever. Symptoms usually appear at the beginning of treatment (acute generalized pustular psoriasis). (rare)
• Yellowing of the skin, dark urine, and fatigue, which may be symptoms of liver problems. (rare)

Other side effects are:

Common(may affect up to 1 in 10 people)

• Headache.
• Effects on the stomach or intestines: diarrhea, stomach pain, constipation, and gas (flatulence).
• Nausea or vomiting.
• Benign polyps in the stomach.

Uncommon(may affect up to 1 in 100 people)

• Swelling of the feet and ankles.
• Sleep disturbances (insomnia).
• Dizziness, tingling sensation, drowsiness.
• Sensation of spinning (vertigo).
• Abnormal blood test results that check liver function.
• Skin rash, hives, and itching.
• General feeling of discomfort and lack of energy.

Rare(may affect up to 1 in 1,000 people)

• Blood problems, such as a decrease in white blood cells or platelets. This can cause weakness or bruising and increase the risk of infections.
• Low sodium levels in the blood. This can cause weakness, vomiting, and muscle cramps.
• Agitation, confusion, or depression.
• Changes in taste.
• Visual problems, such as blurred vision.
• Sudden sensation of difficult breathing (bronchospasm).
• Dry mouth.
• Inflammation of the inside of the mouth.
• Infection called "candidiasis" that can affect the intestines and is caused by a fungus.
• Hair loss (alopecia).
• Rash on the skin with exposure to sunlight.
• Joint pain (arthralgias) or muscle pain (myalgias).
• Severe kidney problems (interstitial nephritis).
• Increased sweating.

Very rare(may affect up to 1 in 10,000 people)

• Abnormal blood count, such as agranulocytosis (lack of white blood cells).
• Aggression.
• To see, feel, or hear things that do not exist (hallucinations).
• Severe liver problems that cause liver failure and inflammation of the brain.
• Erythema multiforme.
• Muscle weakness.
• Enlargement of the breasts in men.

Frequency not known(cannot be estimated from available data)

• Inflammation in the intestines (causing diarrhea)

• If you are taking omeprazole for more than three months, it is possible that your magnesium levels in the blood will decrease. Low magnesium levels can manifest as fatigue, involuntary muscle contractions, disorientation, seizures, dizziness, or increased heart rate. If you experience any of these symptoms, inform your doctor immediately. Low magnesium levels can also lead to a decrease in potassium or calcium levels in the blood. Your doctor may decide to perform periodic blood tests to monitor your magnesium levels.
• Rash, possibly with joint pain.

In very rare cases, omeprazole may affect white blood cells in the blood and cause immunodeficiency. If you experience an infection with symptoms such as fever with a very deteriorated general state or fever with symptoms of local infection, such as neck pain, throat pain, or mouth pain or difficulty urinating, you should consult your doctor as soon as possible to perform a blood test and rule out a lack of white blood cells (agranulocytosis). It is essential to provide information about the medication you are taking at that time.

Reporting side effects

If you experience any type of side effect, consult your doctor, pharmacist, or nurse, even if it is a possible side effect that does not appear in this prospectus. You can also report them directly through theSpanish System for Pharmacovigilance of Medicines for Human Use:https://www.notificaram.es. By reporting side effects, you can contribute to providing more information about the safety of this medication

Keep this medication out of the sight and reach of children.

Do not use this medication after the expiration date that appears on the packaging after CAD or EXP. The expiration date is the last day of the month indicated.

Blister packaging: do not store at a temperature above 25°C.

Bottle packaging: no special storage conditions are required.

Medications should not be disposed of through drains or in the trash. Deposit the packaging and medications you no longer need at the SIGRE collection pointof the pharmacy. If in doubt, ask your pharmacist how to dispose of the packaging and medications you no longer need. In this way, you will help protect the environment.

Composition of Omeprazol Viatris

• The active ingredient is omeprazole. Each capsule contains 20 mg of omeprazole.
• The other components (excipients) are: sugar spheres (sucrose, cornstarch), copolymer of methacrylic acid and ethyl acrylate, hypromellose, disodium dihydrogen phosphate, talc, triethyl citrate, titanium dioxide (E-171). Capsules: gelatin, titanium dioxide (E-171), and black printing ink (containing shellac, potassium hydroxide (E-525), and iron oxide black (E-172)).

Appearance of the product and contents of the packaging

The capsules are formed by a white body marked with 20 and a white cap marked with OM.

Package sizes:

• PVC/PVdC-Alu blister packs containing 28 capsules.
• HDPE bottles with a screw cap containing 28 or 56 capsules. The cap contains a desiccant capsule with silica gel to protect the capsules from moisture.

Marketing authorization holder and responsible manufacturer

Marketing authorization holder

Viatris Pharmaceuticals, S.L.U.

C/ General Aranaz, 86

28027 - Madrid

Spain

Responsible manufacturer

Towa Pharmaceutical Europe S.L.

C/ Sant Martí, 75-97

08107 – Martorelles, Barcelona

Spain

Last review date of this leaflet:February 2025

Detailed information about this medication is available on the website of the Spanish Agency for Medicines and Medical Devices (AEMPS)https://www.aemps.gob.es/