Vitamin B12 (Cyanocobalamin)
Product of Canada. Shipped from Canada.
(sye an oh koe bal' a min)
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.
- tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking. Be sure to mention any of the following: antibiotics such as chloramphenicol; colchicine; folic acid; methotrexate (Rheumatrex, Trexall); para-aminosalicylic acid (Paser); and pyrimethamine (Daraprim). Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
- tell your doctor if you drink or have ever drunk large amounts of alcohol and if you have or have ever had Leber's hereditary optic neuropathy (slow, painless loss of vision, first in one eye and then in the other) or kidney disease.
- tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while using cyanocobalamin injection, call your doctor. Talk to your doctor about the amount of vitamin B12 you should get every day when you are pregnant or breast-feeding.
- feeling as if your entire body as swollen
- muscle weakness, cramps, or pain
- leg pain
- extreme thirst
- frequent urination
- shortness of breath, especially when you exercise or lie down
- coughing or wheezing
- fast heartbeat
- extreme tiredness
- swelling of the arms, hands, feet, ankles or lower legs
- pain, warmth, redness, swelling or tenderness in one leg
- red skin color, especially on the face
- difficulty breathing or swallowing