B12 supplements how long does it take to work

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? Yes, you can drink alcohol with cyanocobalamin. Alcohol does not affect how this medicine works. Is there any food or drink I need to avoid?

Will it affect my contraception? Talk to your doctor if you are taking oral contraceptives. Will it affect my fertility? Can I drive or ride a bike? Cyanocobalamin does not usually affect your ability to drive or ride a bike. What foods can I eat to increase the amount of vitamin B12 in my diet? Foods that are good sources of vitamin B12 include: meat liver, beef fish salmon, tuna, haddock shellfish muscles, scallops dairy foods milk, yoghurt, cheese eggs Some foods have vitamin B12 added look for "fortified" on the label.

Related conditions Vitamin B12 or folate deficiency anaemia. Useful resources HealthUnlocked: vitamin B12 forum. Intrinsic factor is a protein that's secreted by the cells in the lining of your stomach. When you consume vitamin B12, either through food or supplements, intrinsic factor attaches to the vitamin and allows you to absorb it in your small intestine.

You can't properly absorb vitamin B12 without intrinsic factor, no matter how much you take in. Because of this, people who don't make intrinsic factor are at a much higher risk of developing a vitamin B12 deficiency. Treatment for vitamin B12 deficiency in people without intrinsic factor is also different from treatment for people who don't have problems with absorption. The only way to correct vitamin B12 deficiency in someone without intrinsic factor is to utilize B12 injections.

The B12 from oral supplements or foods won't be properly absorbed. Because of this, it's often necessary for people who don't make intrinsic factor to get B12 injections regularly for the rest of their lives.

According to the Mayo Clinic , lack of intrinsic factor may be caused by an autoimmune disease that mistakenly attacks the cells in the stomach that make it. It can also develop as a result of gastric bypass surgery or other types of surgery on the stomach that cause physical damage to the cells in the stomach that make the protein. Read more: Vitamin B12 Shots vs. Once your deficiency is corrected and supplements aren't needed anymore, it's important to make sure that you're regularly getting enough vitamin B12 from the foods that you eat so you don't develop a deficiency again.

Because B12 is a water-soluble vitamin, your body doesn't store excess amounts of it, so even if you're getting high-dose injections or taking oral supplements, your body will still use only what it needs and then get rid of the rest through your urine. Vitamin B Products and services. Thank you for Subscribing Our Housecall e-newsletter will keep you up-to-date on the latest health information. Please try again. Something went wrong on our side, please try again.

Show references Vitamin B Fact sheet for professionals. Office of Dietary Supplements. Accessed Jan. Fairfield KM. Vitamin supplementation in disease prevention. Means RT Jr, et al. Causes and pathophysiology of vitamin B12 and folate deficiencies. One of the last 2 will help, the cyano kind wont. If he tells you there is no difference, punch him in the face, and change doctors. Doctors dont want you cured they want you treated, to make money off your suffering.

Doctors are evil. If you know you have b12 defiency and the shots dont work, try buying sublingual methylcobalimim. I was curious if I should still add a sublingual B12 a few times a week. My B12 level was which is well in "normal" range according to my primary dr who tested me but according to my celiac dr, is way lower than it should be! If you are at all symptomatic, you want the B12 level over You need to take a separate B12 supplement, on an empty stomache, even if you do it sublingual, because most of that goes into your gut via saliva.

I just started on B12 today and am hopeful after reading some of the timeframes people posted on one of the neurology boards! I also read this article which mentioned the low cut-off in Europe and Japan is Mom-of -Two, perhaps this is why your docs disagree? I am within the low-normal range but my neuro suggested I start otc supplements because of the tingling and numbness in my hands.

The energy boost and help with mental clarity, which I need are kind of a bonus! I went with pills - the methyl form though - because that is what was available locally. Please let me know how quickly you noticed a difference! This site complies with the HONcode standard for trustworthy health information: verify here. View HONcode Certificate. This site places cookies on your device Cookie Settings. Continued use is acceptance of our Terms of Use , and Privacy Policy.

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Evangeline Posted February 17, OptimisticMom42 Posted February 17, Dx Celiacs March ' Had GI symptoms, allergy symptoms and unexplained illness my whole life.