PACKAGE LEAFLET: INFORMATION FOR THE USER
Opiren Flas 15 mg Orally Disintegrating Tablets
lansoprazole
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
Contents of the pack:
The active substance of Opiren is lansoprazole, a proton pump inhibitor. Proton pump inhibitors reduce the amount of acid produced by the stomach.
Your doctor may prescribe you Opiren for the following indications in adults:
You may have been prescribed Opiren for another indication or at a different dose than indicated in this leaflet. Follow your doctor's instructions exactly.
You should consult a doctor if you get worse or if you do not improve after 14 days.
Do not take Opiren
Warnings and precautions
Tell your doctor if you have a severe liver disease. The doctor may need to adjust the dose.
Your doctor may have performed or may perform a complementary test called endoscopy to diagnose your disease and/or rule out a malignant disease.
If you experience diarrhea during treatment with Opiren, contact your doctor immediately, as Opiren has been associated with a slight increase in infectious diarrhea.
If your doctor has prescribed you Opiren in addition to other medicines intended for the treatment of Helicobacter pyloriinfection (antibiotics) or together with anti-inflammatory drugs to treat pain or rheumatism, also read carefully the package leaflets of these medicines.
Taking a proton pump inhibitor like Opiren, especially for a period of more than one year, may slightly increase the risk of hip, wrist, or vertebral fractures. Tell your doctor if you have osteoporosis (reduced bone density) or if your doctor has told you that you are at risk of osteoporosis (for example, if you are taking steroids).
If you have been taking Opiren for a long time (more than 1 year), your doctor will probably monitor you regularly. During your visits to the doctor, you should inform him of any new or abnormal symptoms and circumstances.
Consult your doctor before starting to take lansoprazole:
Taking Opiren with other medicines
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines, including those obtained without a prescription.
In particular, tell your doctor or pharmacist if you are taking medicines that contain any of the following active substances, as Opiren may affect their action:
Taking Opiren with food and drinks
To get the best results from your medicine, you should take Opiren at least 30 minutes before meals with a glass of water.
Pregnancy, breastfeeding, and fertility
If you are pregnant or breastfeeding, think you may be pregnant, or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
Driving and using machines
Patients taking Opiren may occasionally experience side effects, such as dizziness, vertigo, fatigue, and visual disturbances. If you experience any of these side effects, you should act with caution as your reaction ability may be reduced.
You are the only one responsible for deciding whether you are in a fit state to drive vehicles or perform activities that require a high level of concentration. Due to its effects or adverse reactions, one of the factors that can reduce your ability to perform these operations safely is the use of medicines.
In the following sections, you will find descriptions of these effects.
Read carefully the information in this leaflet.
If you have any further questions, ask your doctor or pharmacist.
Opiren contains lactose
If your doctor has told you that you have an intolerance to some sugars, consult him before taking this medicine.
Opiren contains aspartame
This medicine contains 4.5 mg of aspartame in each 15 mg orally disintegrating tablet.
Aspartame is a source of phenylalanine, which may be harmful in cases of phenylketonuria (a rare genetic disorder in which phenylalanine accumulates because the body is unable to eliminate it properly).
Opiren contains sodium
This medicine contains less than 1 mmol of sodium (23 mg) per tablet; this is essentially "sodium-free".
Follow your doctor's instructions exactly. If you are in doubt, consult your doctor or pharmacist again.
Place the tablet on your tongue and suck it slowly. The tablet dissolves quickly in the mouth, releasing microgranules that should be swallowed without chewing. You can also swallow the tablet whole with a glass of water.
Your doctor may give you instructions to administer the tablet through a syringe, in case you have serious difficulties swallowing.
Follow these instructions in case of administration through a syringe:
It is important that you check that the selected syringe is the right one.
If you take Opiren once a day, try to take it at the same time every day. You may get better results if you take Opiren in the morning.
If you take Opiren twice a day, you should take the first dose in the morning and the second dose at night.
The dose of Opiren depends on your general condition. The usual doses of Opiren for adults are indicated below. Sometimes, your doctor may prescribe you a different dose and indicate a different duration of treatment.
Treatment of heartburn and acid regurgitation:one 15 mg or 30 mg orally disintegrating tablet per day for 4 weeks. If symptoms do not improve after 4 weeks, consult your doctor.
Treatment of duodenal ulcer:one 30 mg orally disintegrating tablet per day for 2 weeks.
Treatment of gastric ulcer:one 30 mg orally disintegrating tablet per day for 4 weeks.
Treatment of inflammation of the esophagus (reflux esophagitis):one 30 mg orally disintegrating tablet per day for 4 weeks.
Long-term prevention of reflux esophagitis:one 15 mg orally disintegrating tablet per day; your doctor may adjust the dose to one 30 mg orally disintegrating tablet per day.
Treatment of Helicobacter pyloriinfection:The usual dose is one 30 mg orally disintegrating tablet together with two different antibiotics in the morning and one 30 mg orally disintegrating tablet together with two different antibiotics in the evening. The treatment is usually taken daily for 7 days.
The recommended combinations of antibiotics are as follows:
If you receive anti-infective treatment due to an ulcer, it is unlikely that the ulcer will come back if the infection is successfully treated. To get the best results from your medicine, take it at the right time and do not miss any dose.
Treatment of duodenal or gastric ulcers in patients who require continuous treatment with NSAIDs:one 30 mg orally disintegrating tablet per day for 4 weeks.
Prevention of duodenal or gastric ulcers in patients who require continuous treatment with NSAIDs:one 15 mg orally disintegrating tablet per day; your doctor may adjust the dose to one 30 mg orally disintegrating tablet per day.
Zollinger-Ellison syndrome:The usual initial dose is two 30 mg orally disintegrating tablets per day; subsequently, based on your response to treatment with Opiren, the doctor will decide the best dose for you.
Use in children:
Opiren should not be administered to children.
If you take more Opiren than you should
If you take more Opiren than you should, consult your doctor immediately, or consult the Toxicology Information Service, Telephone 915 620 420
If you forget to take Opiren
If you forget to take a dose, take it as soon as possible unless the time for the next dose is near. In this case, skip the missed dose and take the next orally disintegrating tablets as usual. Do not take a double dose to make up for forgotten doses.
If you stop taking Opiren
Do not stop treatment prematurely because the symptoms have improved. It is possible that your condition has not been completely cured and may come back if you do not finish the entire treatment.
If you have any other questions about the use of this medicine, ask your doctor or pharmacist.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
If you start to notice any of the following side effects, stop taking Opiren and contact your doctor immediately:
Common side effects (may affect up to 1 in 10 people):
Uncommon side effects (may affect up to 1 in 100 people):
Rare side effects (may affect up to 1 in 1,000 people):
Very rare side effects (may affect up to 1 in 10,000 people):
Frequency not known (cannot be estimated from the available data):
Reporting of side effects:
If you experience any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly through the Spanish Pharmacovigilance System for Human Use Medicines: https://www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date which is stated on the packaging and outer carton, after EXP. The expiry date is the last day of the month indicated.
Do not store above 25°C. Store in the original package.
Medicines should not be disposed of via wastewater or household waste. Dispose of the packaging and any unused medicine in the SIGRE collection point at your pharmacy. If in doubt, ask your pharmacist how to dispose of the packaging and any unused medicine. This will help protect the environment.
Composition of Opiren
Appearance of the Product and Package Contents
Opiren Flas 15 mg is presented in the form of round, flat, beveled, white to off-white buccal dispersible tablets, speckled with orange to dark brown microgranules, with the mark "15" on one face. Each package contains 28 or 56 tablets.
Marketing Authorization Holder and Manufacturer
Marketing Authorization Holder
Takeda Pharmaceutical Spain, S.A.
Albacete Street, 5, 9th floor,
Los Cubos Building
28027 Madrid
Spain
Tel: +34 91 790 42 22
Manufacturer
Delpharm Novara S.r.l.
Via Crosa, 86
I-28065 Cerano (No), Italy
or
TAKEDA IRELAND LIMITED
Bray Business Park
Kilruddery Bray, County Wicklow, Ireland
or
LUSOMEDICAMENTA SOCIEDADE TECNICA FARMACEUTICA S.A
NORBERTO DE OLIVEIRA STREET 1 A 5 2620-111 POVOA DE STO. ADRIAO,
PORTUGAL
or
VIANEX S.A 15th km Av. Marathonos - Pallini Attiki, Athens - GR-15351 - Greece
This medicine is authorized in the Member States of the European Economic Area under the following names:
European Economic Area with the following names:
Greece: LAPRAZOL FasTab
Italy: LANSOX, LIMPIDEX, ZOTON
Portugal: OGASTO
Spain: OPIREN Flas
Date of the last revision of this leaflet: December 2023
Detailed and updated information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS)
http://www.aemps.gob.es/
The average price of OPIREN FLAS 15 mg ORALLY DISINTEGRATING TABLETS in October, 2025 is around 7.96 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.