Patient leaflet - Cyanocobalamin 50 micrograms film-coated tablets
1. WHAT CYANOCOBALAMIN TABLETS ARE AND WHAT THEY ARE USED FOR
Cyanocobalamin Tablets contain
cyanocobalamin, which is known as vitamin
B12. Most people get enough vitamin B12
from their food, but if you have had stomach
surgery, or certain diseases of the intestines,
or a restricted diet, you may not absorb
enough vitamin B12.
Lack of vitamin B12 in the body causes a
disease called pernicious anaemia (reduction
in the number of red blood cells) which is
often treated with vitamin B12 injections.
Cyanocobalamin tablets are used to treat
vitamin B12 deficiency when injections cannot
be used.
2. WHAT YOU NEED TO KNOW BEFORE YOU TAKE CYANOCOBALAMIN TABLETS
DO NOT take Cyanocobalamin Tablets:
if you are allergic to cyanocobalamin
or any of the other ingredients of this
medicine (listed in section 6).
Those who have an allergic reaction to
cyanocobalamin by injection are often able
to take Cyanocobalamin Tablets without
problems.
Warnings and precautions:
Talk to your doctor or pharmacist before
taking Cyanocobalamin Tablets.
If you have any other medical conditions,
speak to your doctor before you take these
tablets.
Your doctor will want to monitor your
response to this medicine carefully, particularly if you are young or elderly. This will probably involve regular examination of your blood every three months for 18 months and then annually.
Other medicines and Cyanocobalamin Tablets
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.
The absorption of Cyanocobalamin tablets may be affected by:
- Neomycin and chloramphenicol, which are antibiotics
- Colchicine, a treatment for gout
- Biguanides, e.g. metformin, which are used to treat diabetes
- Cholestyramine, which is used to reduce the amount of cholesterol (fats) in the blood
- Potassium chloride, which is used to correct potassium deficiency
- Methyldopa, which is used to treat high blood pressure
- Cimetidine, which is used to treat excess acid in the stomach causing indigestion or ulcers
- Oral contraceptives.
Antibiotics (used to treat infections) and antimetabolites (used to treat some cancers) can affect the blood tests to measure vitamin B12.
Cyanocobalamin Tablets with food, drink and alcohol
Cyanocobalamin Tablets should be swallowed with water and taken between meals.
Pregnancy, breast feeding and fertility
If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine. As with all drugs Cyanocobalamin Tablets should only be given in pregnancy and during breast feeding if absolutely necessary.
Cyanocobalamin Tablets contain lactose
This medicine also contains lactose (which Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
This medicine is available without prescription. However, you still need to take Cyanocobalamin Tablets carefully to get the best results from it. Always take this medicine exactly as described in this leaflet or as your doctor or pharmacist has told you.
- Keep this leaflet. You may need to read it again.
- Ask your pharmacist if you need more information or advice.
- If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. See section 4.
You must talk to a doctor if you do not feel better or if you feel worse.
continued is a sugar). If you have been told by your doctor that you have an intolerance to some sugars, contact your doctor before taking this medicinal product.
3. HOW TO TAKE CYANOCOBALAMIN TABLETS
Always take this medicine exactly as described in this leaflet or as your doctor or pharmacist has told you. Check with your doctor or pharmacist if you are not sure. Please read the label carefully, it will tell you how many Cyanocobalamin Tablets to take each day.
The recommended dose is:
Adults and Elderly: one to three tablets daily. Children: one tablet daily.
Your doctor may change the dose, depending on how you react to it.
When and how to take the tablets
Cyanocobalamin Tablets should be swallowed with water and taken between meals.
If you take more Cyanocobalamin Tablets than you should:
If you accidentally take too much of this medicine, bring any remaining tablets and this leaflet with you to your doctor or pharmacist so that they know exactly what you have taken.
If you forget to take Cyanocobalamin Tablets:
If you miss a dose, take it as soon as you remember, if it is within a few hours of the normal time. Otherwise, leave out that dose completely and take your next dose at the normal time it is due.
Do not take a double dose to make up for a forgotten dose.
If you stop taking Cyanocobalamin Tablets:
Do not stop taking this medicine, except on your doctor’s advice.
4. POSSIBLE SIDE EFFECTS
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Allergic reactions to these tablets are rare but may show as an itchy rash. Very rarely, a severe allergic reaction may occur causing sudden onset of swelling of the face and neck, and shortness of breath.
Acne-like and blister rashes have been reported rarely.
If any of the side effects become serious, or if you notice any side effects not listed in this leaflet, please tell your doctor or pharmacist.
Reporting of side effects
If you get 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 via the Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for
MHRA Yellow Card in the Google Play or Apple App Store.
By reporting side effects you can help provide more information on the safety of this medicine.
5. HOW TO STORE CYANOCOBALAMIN TABLETS
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 label. The expiry date refers to the last day of that month. If your medicine is out of date, take it to your pharmacist, who will get rid of it safely.
Do not store above 25°C. Store in the original package in order to protect from light. Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.
6. CONTENTS OF THE PACK AND OTHER INFORMATION What Cyanocobalamin tablets contain
The active substance is cyanocobalamin. Each film coated tablet contains 50 microgram cyanocobalamin. Cyanocobalamin Tablets also contain lactose monohydrate, pregelatinized starch (E1422), magnesium stearate (E572), Isopropyl Alcohol and purified water. The film coating includes hypromellose (E464), titanium dioxide (E171), polyethylene glycol (E1520) and talc (E553b).
What Cyanocobalamin Tablets look like and contents of pack
Cyanocobalamin is a White to pale pink colour, round shape film-coated tablet with “D” debossed on one side and “C5” debossed on other side.
Cyanocobalamin Tablets are available in Polypropylene containers of 50 tablets with tamper evident PE cap. Each container contains one 1gm silica gel desiccant pouch, which must be kept in the container to help protect your tablets, and it should not be swallowed.
Marketing Authorisation Holder and Manufacturer
Farmak Pharmaceuticals UK Ltd
First Floor, 47 Queen Street, Hull, HU1 1UU, United Kingdom
This leaflet was last revised in August 2026.
For information in large print, audio CD or Braille, please telephone +44 (0)1482 738200 or email med.info@farmak.uk
XXXXX
| WIP URN | ✓ | 050126-XXXXX-PIL-01 |
| APPROVED URN | ||
| JOB | Cyanocobalamin PIL | |
| 110 x 240mm | ||
| DATE | 5 January 2025 | |
| BOH APPROVAL DATE | ||
| SAVED AS | XXXXX-01 Cyanocobalamin PIL Farmak | |
| PRINTS | 1 colour - black |