Rennie Antacidum
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Leaflet attached to the packaging: patient information
Warning! Keep the leaflet! Information on the immediate packaging in a foreign language.
Rennie Antacid (Rennie), 680 mg + 80 mg, chewable tablets
Calcium carbonate + Magnesium carbonate ponderous
Rennie Antacid and Rennie are different trade names for the same medicine.
You should carefully read the contents of the leaflet before taking the medicine, as it contains
important information for the patient.
This medicine should always be used exactly as described in the patient leaflet or as directed by
the doctor or pharmacist.
- The leaflet should be kept, so that it can be read again if necessary.
- If advice or additional information is needed, the pharmacist should be consulted.
- If the patient experiences any side effects, including any possible side effects not listed in the leaflet, the doctor or pharmacist should be informed. See section 4.
- If there is no improvement after 7 days or the patient feels worse, the doctor should be contacted.
Table of contents of the leaflet:
- 1. What is Rennie Antacid and what is it used for
- 2. Important information before taking Rennie Antacid
- 3. How to take Rennie Antacid
- 4. Possible side effects
- 5. How to store Rennie Antacid
- 6. Contents of the packaging and other information
1. What is Rennie Antacid and what is it used for
Rennie Antacid is a medicine that neutralizes excess stomach acid.
It contains two active substances: calcium carbonate and magnesium carbonate.
Rennie Antacid is used for the symptomatic treatment of disorders associated with excess stomach acid, such as:
- heartburn,
- indigestion,
- bloating,
- nausea,
- feeling of fullness or heaviness in the upper abdomen,
- belching.
2. Important information before taking Rennie Antacid
When not to take Rennie Antacid:
- If the patient is allergic to the active substances or any of the other ingredients of the medicine (listed in section 6).
- If the patient has high levels of calcium in the blood (hypercalcemia).
- If the patient has kidney stones with calcium.
- If the patient has severe kidney failure.
- If the patient has low levels of inorganic phosphates in the blood (hypophosphatemia).
Warnings and precautions
Before taking Rennie Antacid, the doctor or pharmacist should be consulted.
When taking Rennie Antacid, special care should be taken if:
- the patient has kidney failure; the levels of calcium, phosphates, and magnesium in the blood should be regularly checked,
- the patient has excessive excretion of calcium in the urine (hypercalciuria),
- the patient takes the medicine for a long time and in high doses; this may cause (especially in patients with kidney failure) an increase in the levels of magnesium and calcium in the blood and milk-alkali syndrome (a condition caused by excessive intake of calcium compounds). This, in turn, may cause nausea, vomiting, excessive urine production, increased thirst, dehydration, fatigue, and disorders of orientation and thinking (confusion); increased risk of kidney stone formation; muscle weakness.
Rennie Antacid with other medicines
The doctor or pharmacist should be informed about all medicines the patient is currently taking or has recently taken, as well as any medicines the patient plans to take.
Rennie Antacid may affect the rate and extent of absorption of other medicines. Therefore,
all medicines, especially those listed below, should be taken 1 or 2 hours before or after
taking Rennie Antacid:
- antibiotics from the tetracycline group and other antibacterial medicines - quinolones,
- cardiac glycosides, such as digoxin,
- bisphosphonates (used in the treatment of osteoporosis),
- dolutegravir (an antiretroviral medicine used in the treatment of HIV infection),
- levothyroxine (used, among others, in hypothyroidism),
- eltrombopag (used in the treatment of thrombocytopenia),
- phosphates,
- fluorides,
- iron preparations,
- thiazide diuretics. Due to the increased risk of hypercalcemia when taking thiazide diuretics, the level of calcium in the blood should be regularly monitored.
Rennie Antacid with food and drink
The medicine should be taken after a meal. The medicine should not be taken with large amounts of milk or
dairy products.
Pregnancy and breastfeeding
If the patient is pregnant or breastfeeding, thinks she may be pregnant, or plans to have a child, she should consult a doctor or pharmacist before taking this medicine. Rennie Antacid can be used during pregnancy and breastfeeding. However, the recommended doses should be strictly followed and the medicine should be used as directed. The medicine should not be used for more than 2 weeks.
Driving and using machines
There is no effect.
Rennie Antacid contains sucrose.
One tablet contains 475 mg of sucrose. This should be taken into account in patients with
diabetes.
If the patient has previously been diagnosed with intolerance to some sugars, the patient should
consult a doctor before taking the medicine.
3. How to take Rennie Antacid
This medicine should always be taken exactly as described in the patient leaflet or as directed by
the doctor or pharmacist. In case of doubt, the doctor or pharmacist should be consulted.
Recommended dose
Adults and children over 12 years old:
1 to 2 tablets at a time, 1 hour after a meal and before bedtime.
No more than 11 tablets should be taken per day.
Method of administration:
- Take orally, tablets can be sucked or chewed.
- In case of heartburn or pain associated with excess stomach acid, an additional 1 or 2 tablets can be taken between the usual doses.
- Long-term use of the medicine should be avoided. Long-term use of the medicine and in high doses may cause side effects (see section 4).
If symptoms do not improve within 7 daysor improve only partially, the doctor should be consulted, as tests are recommended to rule out a more serious disease.
Use in children
Rennie Antacid should not be used in children under 12 years old.
Taking a higher dose of Rennie Antacid than recommended
In case of taking a higher dose of the medicine than recommended, the medicine should be stopped and plenty of fluids should be given to drink.
The following overdose symptoms may occur:
- nausea, vomiting, muscle weakness, drowsiness. If the symptoms are severe, medical advice should be sought, as other methods of hydration (e.g., infusions) may be necessary.
4. Possible side effects
Like all medicines, Rennie Antacid can cause side effects, although not everybody gets them.
Rennie Antacid may cause the following side effects:
- allergic reactions (very rarely reported); clinical symptoms may include: rash, urticaria, itching, angioedema, dyspnea, and anaphylactic shock;
- nausea, vomiting, stomach discomfort, constipation, and diarrhea;
- muscle weakness.
Long-term use of high doses, especially in patients with impaired kidney function, may cause hypermagnesemia (elevated magnesium levels in the blood) or hypercalcemia (elevated calcium levels in the blood) and alkalosis (elevated blood pH).
Symptoms of milk-alkali syndrome:
- taste disorders;
- calcifications;
- weakness;
- headaches;
- excessive nitrogen in the blood (azotemia).
Reporting side effects
If any side effects occur, including any possible side effects not listed in the leaflet, the doctor or pharmacist should be informed. Side effects can be reported directly to the Department of Monitoring of Adverse Reactions to Medicinal Products of the Office for Registration of Medicinal Products, Medical Devices, and Biocidal Products,
Al. Jerozolimskie 181C, 02-222 Warsaw, tel.: +48 22 49 21 301, fax: +48 22 49 21 309,
website: https://smz.ezdrowie.gov.pl.
Reporting side effects can help gather more information on the safety of the medicine.
5. How to store Rennie Antacid
The medicine should be stored out of sight and reach of children.
Store in a temperature below 25°C. Store in the original packaging to protect from moisture.
Do not use this medicine after the expiry date stated on the packaging.
The expiry date refers to the last day of the month stated.
Medicines should not be disposed of via wastewater or household waste containers. The pharmacist should be asked how to dispose of medicines that are no longer used. This will help protect the environment.
6. Contents of the packaging and other information
What Rennie Antacid contains
The active substances of the medicine are: calcium carbonate and magnesium carbonate.
The medicine contains 680 mg of calcium carbonate and 80 mg of magnesium carbonate.
The other ingredients of the medicine are: sucrose, maize starch, potato starch, magnesium stearate, talc, light liquid paraffin, peppermint flavor, lemon flavor.
What Rennie Antacid looks like and what the packaging contains
The medicine is in the form of white, square tablets with the inscription: "RENNIE". The tablets are packaged in blisters.
The packaging contains 12, 24, 36, 48, or 96 chewable tablets.
For more detailed information, the marketing authorization holder or parallel importer should be contacted.
Marketing authorization holder in the Czech Republic, the country of export:
Bayer s.r.o., Siemensova 2717/4, 155 00 Prague 5, Czech Republic
Manufacturer:
Delpharm Gaillard, 33, rue de l’Industrie, 74240 Gaillard, France
Parallel importer:
InPharm Sp. z o.o.
ul. Strumykowa 28/11
03-138 Warsaw
Repackaged by:
Pharma Innovations Sp. z o.o.
ul. Jagiellońska 76
03-301 Warsaw
InPharm Sp. z o.o. Services sp. k.
ul. Chełmżyńska 249
04-458 Warsaw
Marketing authorization number in the Czech Republic, the country of export:09/852/94-C
Parallel import authorization number:14/19
Date of leaflet approval: 12.01.2024
[Information about the trademark]
- Country of registration
- Active substance
- Prescription requiredNo
- Marketing authorisation holder (MAH)Bayer s.r.o.
- This information is for reference only and does not constitute medical advice. Always consult a licensed doctor before taking any medication. Oladoctor is not responsible for medical decisions based on this content.
- Alternatives to Rennie AntacidumDosage form: Tablets, 450 mg + 300 mgActive substance: ordinary salt combinationsManufacturer: Teva Operations Polska Sp. z o.o.Prescription not requiredDosage form: Tablets, 400 mg + 400 mgActive substance: ordinary salt combinationsManufacturer: Sanofi S.p.A.Prescription not requiredDosage form: Tablets, 680 mg + 80 mgActive substance: ordinary salt combinationsPrescription not required
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