RENNIE®

Rennie®

Rennie-Chewable Tablets

680mg calcium carbonate and 80mg heavy magnesium carbonate

What is in this page

1- What Rennie tablets are and what they are used for?

2- What you need to know before you take Rennie tablets?

3- How to take Rennie Tablets?

4- What are the possible side effects?

5- How to store Rennie tablets?

6- Contents of the pack and other information

1- What Rennie tablets are and what they are used for?

The active ingredients in Rennie chewable tablets - Calcium Carbonate and Magnesium Carbonate - neutralize stomach acid and relieve symptoms of stomach acidity such as burning and acid reflux.

2- What you need to know before you take Rennie tablets

Factors that needs to be considered:

If you suffer from an intolerance fructose or table sugar (fructose intolerance, Sucrase-isomaltase insufficiency) or glucose-galactose malabsorption, you should not take Rennie chewable tablets.

Advice for diabetics: One Rennie Chewable tablet contains 475 mg sucrose.

When should Rennie tablets not be taken?

You must not take Rennie chewable tablets if:

- You are hypersensitive against calcium carbonate, magnesium carbonate or excipients in Rennie chewable tablets.

- Your kidney function is severely impaired.

- You suffer from hypercalcaemia (too much calcium in the blood). 

- You have kidney stones (nephrolithiasis) have been diagnosed.

- You suffer from hypophosphatemia (insufficient phosphate in the blood).

When Rennie tablets should be used with caution?

Rennie chewable tablets must not be used for longer than 2 weeks taken without medical consultation. In the case of long-lasting and/or recurring symptoms, a doctor must examine whether a serious illness could be present. Rennie chewable tablets should also not be taken for long periods of time without medical supervision, because long-term use can lead to changes in blood mineral levels.

If Rennie tablets are administered to persons with renal impairment, magnesium concentrations in the serum must be monitored regularly. In such cases, long term treatment with high doses of the medicinal product should be avoided, or else the calcium, phosphate and magnesium concentrations in the serum must also be monitored regularly.

Long-term use should be avoided, particularly if you suffer from kidney dysfunction or are prone to kidney stones. Rennie chewable tablets should not be taken with large amounts of milk or milk products.

Patients with fructose intolerance, glucose-galactose malabsorption or sucrase isomaltase insufficiency should not take Rennie tablets as they contain 475 mg sucrose. This should also be borne in mind with diabetic patients.

Tell your doctor or pharmacist if you

- suffer from any other illnesses

- have allergies or

- are taking other medicines (including those you bought yourself!)

Interactions with other products:

Changes in gastric acidity, for example during treatment with antacids, can have an effect on the rate and degree of absorption of medicinal products that are taken at the same time. An interval of two hours should therefore be observed between taking Rennie tablets and other medicinal products.

The effect of antibiotics (tetracyclines, quinolones), cardiac glycosides (digoxin), medicines against osteoporosis (so-called bisphosphonates), medicines for HIV infections, diuretics, levothyroxine for thyroid disorders, eltrombopag for coagulation disorders and other medicines can be influenced if Rennie chewable tablet is taken at the same time.

There should therefore be an interval of two hours between taking Rennie chewable tablet and taking other medicines. Calcium salts reduce the absorption of fluorides and products containing iron. Calcium and magnesium salts can hinder the absorption of phosphates.

Thiazide diuretics reduce calcium excretion in urine. Due to an increased risk of hypercalcemia, serum calcium must be regularly monitored during the simultaneous administering of thiazide diuretics.

Can Rennie tablets be taken during pregnancy and breastfeeding?

Based on previous experience, is in accordance with the instructions Application no known risk for the child. However, systematic scientific studies have never been carried out.

During pregnancy, Rennie chewable tablets may be taken for a maximum of 2 weeks. To prevent calcium overload, pregnant women should avoid excessive consumption of milk and milk products. Calcium and magnesium are excreted in breast milk, but no effects on the child are expected at therapeutic doses of Rennie chewable tablets. As a precaution, you should avoid taking medicines during pregnancy and breastfeeding or ask your doctor or pharmacist for advice.

Effects on ability to drive and use machines

Rennie tablets have no influence on the ability to drive and use machines.

3- How to take Rennie tablets?

The following applies to all indications (see "What Rennie tablets are and what they are used for"): Adults and children over 12 years: slowly dissolve 1-2 chewable tablets one after the other in the mouth (Rennie chewable tablets are taken without water), preferably one hour after meals and before going to bed, but also in between if you have a heartburn. If necessary, the application can be repeated about every two hours.

Do not take more than 11 chewable tablets per day and maximum dose for no longer than 2 weeks continuously.

The use and safety in children under 12 years of age is known It has not been tested and is not recommended.

Follow the dosage given in the package leaflet or as prescribed by your doctor. If you think the medicine is too weak or too strong, talk to your doctor or pharmacist.

4- What are the possible side effects?

The following side effects may occur when taking Rennie: 

nausea, vomiting, stomach upset, constipation, diarrhea, muscle weakness.

Complications (hypermagnesemia, hypercalcaemia) may occur in patients suffering from kidney disease, manifested in nausea, vomiting, weakness and headaches. If you experience such symptoms, you should consult your doctor immediately.

In very rare cases, hypersensitivity reactions to the intake of Rennie chewable tablets have been reported, which manifest themselves as skin rash, hives, itching, angioedema, shortness of breath and anaphylaxis.

If you notice any side effects that are not described here, you should inform your doctor or pharmacist.

Overdose

In patients with renal dysfunction in particular, taking Rennie chewable tablets over a long period of time and in high doses can lead to renal insufficiency, hypermagnesaemia, hypercalcaemia and alkalosis, causing gastrointestinal Symptoms (nausea, vomiting, constipation) and muscle weakness can be caused.

In these cases, taking the preparation should be discontinued and sufficient fluid intake encouraged. In severe cases of overdose (e.g. milk-alkali syndrome), a doctor must be consulted, since further rehydration measures (e.g. infusions) may be necessary.

5- How to store Rennie tablets?

Store Rennie chewable tablets at room temperature (15-25°C) and protect from moisture.

The product may only be used up to the date marked «<EXP» on the container.

Keep out of reach of children.

Your doctor or pharmacist has access to the detailed summary of product characteristics and will be happy to provide you with further information.

6- Contents of the pack and other information

What Rennie tablets contains

1 Rennie tablet contains:

Active substances: 680 mg calcium carbonate and 80 mg heavy magnesium carbonate.

Excipients: sucrose; pregelatinised maize starch, potato starch, talc, magnesium stearate, paraffin light liquid, peppermint flavour & lemon flavour.

Where to obtain Rennie tablets and pack sizes available

In pharmacies without prescription.

Packs containing 48 & 96 chewable tablets. Not all pack sizes may be marketed.