User Reviews for vitamin b12

Dr ordered 2500 mcg. Within four day I was suffering depression and hyper activity. Discontinued on fifth day.

make me feel extremely feerish and nauseaious

not good

I have been taking Vitamin B12 injections each month for many years for pernicious anemia and as of Fall, 2014 I am no longer anemic. Prior to that time I was just slightly anemic (1 or 2 points below normal).

I suffer from a connective tissue disorder (Ehlers-Danlos Syndrome) with malabsorption issues. My vit B12 levels have always been within the "normal" range but since perimenopause increasing nerve problems, shortness of breath,loss of appetite,pale skin, weakness, depression, tiredness and feeling lightheaded. Have been for 2 months on 2x 500mcg cyanocobalamin sublingual spray. Noticed a difference after one day of treatment! It is almost like a new lease on life for me!!!!

I think it could be related to my urine incontinence

After less then 2 weeks, I had terrible aches and pains, in all joints, especially knees. I also had severe diarrhea. Cutting down on frequency of taking b-12. Trying one every 2-3 days. For the good, I'm NOT dizzy whenever I rise from sitting and my memory is already better.

SLEEPING DISORDER AND THYORID POSITIVE FEELING WEEKNESS

Trochanteric (hip) bursitis - injected myself with 1 ml B12 for ten days - all pain and inflammation gone -- confirmed results by ultrasound - only downer is that this stuff stings like you wouldn't believe

I have been getting daily shot of hydroxycobalamin (B12) and take sublingual lozenge of Methylcobalmin (B12) daily for my burning leg /knee ,foot ,carpel tunnel and foot tingling,balance and walking difficulties ,anxiety ,depression ,brain fog ,speech problems and nausea (all nerve damage neuropathy ) caused by b12 deficiency (pernicious anemia in my case) also take B complex and vit D ,magnesium selinium and iodine,iodide and it's taken months but did start to show improvement after only one shot ,but it can take years to fully repair nerve damage so it can't be done with say monthly injections and anyone tells you your good after a couple of weeks /months of shot when your deficient is wrong get a second opinion at least research .the levels of serum tests are crazy LOW and you must ignore any serum test for b12 after ANY form of supliment as it means nothing as to what is available in cells or of the uptake . Read More Read Less

When I take my B-12 shot, it may take a couple of days for it to take effect-- By the middle of the month I start a downhill slide and by the time to take again--I am exhausted-- Can I take more than 1 shot per month

No positive effect.

Cardiologist told me that b12 could aggravate my tachycardia.

still feel tired and run down all the time take vitiam b12 shot once a month

I was very shakey and everything seemed white after a couple of hours after the shot.

Took shots daily x 1 week then weekly, just need to ask another to give me shot, luckily work with nurses. Great energy boost, have fibromyalgia and SLE, can concentrate, clean, do what I want now. Best thing since sliced bread!