Page last reviewed: 10 March Next review due: 10 March Cyanocobalamin On this page About cyanocobalamin Key facts Who can and cannot take cyanocobalamin How and when to take cyanocobalamin Side effects of cyanocobalamin Pregnancy and breastfeeding Cautions with other medicines Common questions about cyanocobalamin. About cyanocobalamin Cyanocobalamin is a manufactured version of vitamin B Cyanocobalamin works by increasing your levels of vitamin B You need vitamin B12 to make red blood cells and keep your nervous system healthy.
However, you may also need vitamin B12 injections at first to boost your levels. Some people may be able to stop taking cyanocobalamin when their vitamin B12 blood levels are back to normal.
You may have regular blood tests while taking cyanocobalamin, to monitor the levels of vitamin B12 in your blood. Most adults and children aged 2 years and over can take cyanocobalamin. Dosage The amount of cyanocobalamin you need depends on the level of vitamin B12 in your blood and why your levels are low. The usual dose for: diet-related deficiency is 50 micrograms to micrograms, taken once a day B12 deficiency not caused by your diet is one to two 1, microgram tablets, taken once or twice a day — this is usually if you cannot have vitamin B12 injections In children the doses may be lower.
How to take it Swallow prescribed cyanocobalamin tablets whole with a drink of water. For cyanocobalamin supplements that you buy, follow the instructions that come in the packet. Will my dose go up or down?
What if I forget to take it? What if I take too much? Taking an extra dose of cyanocobalamin tablets is unlikely to harm you.
Urgent advice: Contact for advice now if:. Most people do not have any side effects taking cyanocobalamin tablets. Serious allergic reaction In rare cases cyanocobalamin can cause a serious allergic reaction anaphylaxis. Information: You can report any suspected side effect using the Yellow Card safety scheme. Visit Yellow Card for further information. Cyanocobalamin is generally safe to take in pregnancy and while you are breastfeeding.
Non-urgent advice: Tell your doctor if you're:. Cyanocobalamin is usually safe to take with other medicines, including painkillers. However, tell your doctor or pharmacist if you are taking any of these medicines: metformin for diabetes antacids like Gaviscon H2 blockers like ranitidine , cimetidine, famotidine, nizatidine proton pump inhibitors PPIs like lansoprazole , omeprazole , pantoprazole or rabeprazole antibiotics such as chloramphenicol and neomycin oral contraceptives such as the combined pill Mixing cyanocobalamin with herbal remedies and supplements There is very little information about taking herbal remedies and supplements while taking cyanocobalamin.
Important: Medicine safety Tell your doctor or pharmacist if you're taking any other medicines, including herbal medicines, vitamins or supplements. How does cyanocobalamin work? How long does it take to work? How long will I take it for? Your doctor or pharmacist will advise you how long you need to take cyanocobalamin tablets.
What will happen if I stop taking cyanocobalamin? If your levels get too low you may start to get symptoms such as tiredness again. This may take days, weeks or months to happen because it depends on: what your vitamin B12 levels are how long you have been taking cyanocobalamin how much vitamin B12 you get from your diet Talk to your doctor or pharmacist if you want to stop taking cyanocobalamin or are bothered by side effects.
Can I drink alcohol with it? Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests to check your body's response to cyanocobalamin injection. It is important for you to keep a written list of all of the prescription and nonprescription over-the-counter medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements.
You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies. Generic alternatives may be available. Cyanocobalamin Injection pronounced as sye an oh koe bal' a min.
Why is this medication prescribed? How should this medicine be used? Other uses for this medicine What special precautions should I follow? What special dietary instructions should I follow? What should I do if I forget a dose? What side effects can this medication cause? What should I know about storage and disposal of this medication? Brand names Other names. Other uses for this medicine. What special precautions should I follow? Before using cyanocobalamin injection, tell your doctor and pharmacist if you are allergic to cyanocobalamin injection, nasal gel, or tablets; hydroxocobalamin; multi-vitamins; any other medications or vitamins; or cobalt.
If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist. This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information.
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You are here Home » cyanocobalamin oral. Top of the page. What is the most important information I should know about oral cyanocobalamin? What is oral cyanocobalamin? Cyanocobalamin may also be used for purposes not listed in this medication guide. What should I discuss with my healthcare provider before taking oral cyanocobalamin? How should I take oral cyanocobalamin? Store at room temperature away from moisture, heat, and light. What happens if I miss a dose? What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at What should I avoid while taking oral cyanocobalamin? What are the possible side effects of oral cyanocobalamin?
What other drugs will affect oral cyanocobalamin? Tell your doctor about all your other medicines, especially: an antibiotic; drugs that weaken the immune system such as cancer medicine, or steroids; medicine to reduce stomach acid such as cimetidine, omeprazole, lansoprazole, Nexium, Prilosec, or Zantac; oral diabetes medicine that contains metformin; or seizure medication.
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