Skip to Content


Active substance(s): SODIUM BICARBONATE

View full screen / Print PDF » Download PDF ⇩
Label-leaflet text (Co-pharma)

Outer face:

Sodium Bicarbonate 500 mg Capsules
56 Capsules
For oral use.
Swallow whole with a drink of water. Adults: For indigestion take 2 to 10 capsules as
required, or as directed by your doctor.
Each capsule contains: sodium bicarbonate 500 mg, which provides 137 mg of
sodium. Not recommended for use in children under 12 years, unless prescribed by a
doctor. Read all the leaflet before use.
Warning. Do not exceed the stated dose. KEEP OUT OF THE SIGHT AND
REACH OF CHILDREN. Do not store above 25ºC.
Store in the original container. Keep the container tightly closed.
PL Holder: Dalkeith Laboratories Ltd., Woburn, MK17 9PG, UK.
Distributed by: Co-pharma Ltd., Herts., WD1 8SS, UK.
PL 17496/0018



Co-pharma logo

Inner leaflet:
Patient Information Leaflet

Sodium Bicarbonate 500 mg Capsules
Read the leaflet carefully and keep it in case you
want to read it again.
Do not share medicines with other people.
If you get any side effects, talk to your doctor,
pharmacist or nurse. This includes any possible
side effects not listed in this leaflet. See section 4.
1. What these capsules are and what they are used for
These capsules contain the active ingredient, sodium bicarbonate. Sodium
Bicarbonate can be used as an antacid and works by neutralising acid in your
Sodium Bicarbonate Capsules are used to treat dyspepsia (heartburn or indigestion).
They may also be used to treat acidosis (metabolic or respiratory), a condition where
the blood is more acidic than it should be.
2. Before you take these capsules
Some people must not take these capsules. Do not take these capsules if:

You know you are allergic to sodium bicarbonate or to any of the other ingredients
(these are listed in section 6).
You must be especially careful if:

You have previously suffered from heart failure
You suffer from liver or kidney problems
You have high blood pressure
You are on a low salt diet (each capsule contains 137 mg of sodium)
You are elderly
You are pregnant or breastfeeding.

Discuss your treatment with your doctor before taking this medicine if any of the
above applies to you.
Taking other medicines
These capsules can affect some other medicines you may be taking. Make sure your
doctor knows if you are taking any of the following:

Drugs containing lithium (for depression)
Phenothiazines (to treat anxiety)
Anti-bacterials (e.g. rifampicin or tetracycline)
Anti-fungals (e.g. ketoconazole, itraconazole)
Drugs to treat high blood pressure (eg. captopril, enalapril)
Dipyridamole (to prevent blood clotting)
Quinidine (for heart rhythm disturbances)
Phenytoin and gabapentin (for epilepsy)
Chloroquine and hydroxychloroquine (to prevent or treat malaria or for arthritis)
Penicillamine (for rheumatism)
Bisphosphonates (to treat Pagets disease, in which bones form too quickly or to
treat established osteoporosis to slow down bone loss)
Methotrexate (used in cancer treatment)
Ephedrine (used in cold remedies/nasal decongestants)

Always tell your doctor or pharmacist about all the medicines you are taking. This
means medicines you have bought yourself as well as those you have on prescription
from your doctor.
Driving and using machinery
Sodium Bicarbonate Capsules should not affect your ability to drive or operate
3. How to take these capsules
The capsules should be swallowed whole (do not chew) with a drink of water.

If this medicine has been given to you by your doctor, he/she will decide what dose
you need to take. Always take the capsules exactly as the doctor has told you. The
dose will be on the pharmacist’s label. If you are not sure, ask your doctor or
pharmacist. Carry on taking them for as long as you have been told unless you have
any problems. In that case, check with your doctor.
The usual doses are as follows:
Indigestion: Take 1 to 5 g (2 to 10 capsules) when required.
Do not take more than the stated dose.
Acidosis: To be taken as instructed by your doctor. The dose will depend on each
individual patient’s acid-base balance and electrolyte status.
If you have bought the capsules yourself, take the dose described above. Do not
continue to take these capsules for a long period of time without consulting the
Children under 12 years of age should not take this medicine unless prescribed by a
If you take more capsules than you should:
Speak to your doctor or pharmacist straightaway.
If you forget to take these capsules:
Do not take a double dose to make up for a forgotten dose, just carry on with the
normal routine.
4. Possible side effects
Like all medicines, this medicine can cause side effects, although not everybody gets
The following have been reported:
• Stomach pains
• Flatulence (wind)
• Alkalosis (an increase in pH of the blood), symptoms may include
tiredness/weariness, vomiting, thirst and restlessness. (Possibly due to prolonged
use, which is not advised).
Sodium supplements such as Sodium Bicarbonate Capsules may also cause:
• High blood pressure
• Fluid retention
• Hypokalaemia (low potassium levels in the blood), symptoms may include an
abnormal heartbeat, muscle weakness and numbness.

Reporting of side effects
If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any
possible side effects not listed in this leaflet. You can also report side effects directly
via the Yellow Card Scheme at: By reporting side
effects you can help provide more information on the safety of this medicine.


How to store these capsules

Keep out of the sight and reach of children.
Do not store above 25ºC. Store in the original container. Keep the container tightly
Do not use the capsules after the expiry date shown on the label.
Take any unused medicine back to your pharmacist to be destroyed.

Further information

Each white capsule printed with “NaB 500” contains 500 mg of the active ingredient,
sodium bicarbonate. The other ingredients are microcrystalline cellulose, and
magnesium stearate. The capsule shell contains gelatin, water and titanium dioxide
(E171), and the printing ink contains shellac, black iron oxide (E172), soya lecithin
and antifoam DC 1510.
They are supplied in containers of 56 or 100 capsules.
Both of the pack sizes may not be available.
Product licence holder: Dalkeith Laboratories Ltd., 2 Park Street, Woburn,
Bedfordshire, MK17 9PG, UK.
Manufacturer: Aspar Pharmaceuticals Ltd, 29-30 Capitol Way, Capitol Way
Industrial Park, Colindale, London, NW9 0EQ, UK.
Date of revision: May 2015.
If you would like the leaflet in a different format, please contact the licence holder

Expand view ⇕

Source: Medicines and Healthcare Products Regulatory Agency

Disclaimer: Every effort has been made to ensure that the information provided here is accurate, up-to-date and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. This information has been compiled for use by healthcare practitioners and consumers in the United States. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate that the drug or combination is safe, effective or appropriate for any given patient. If you have questions about the substances you are taking, check with your doctor, nurse or pharmacist.