Cyanokit Side Effects
Generic Name: hydroxocobalamin
Note: This document contains side effect information about hydroxocobalamin. Some of the dosage forms listed on this page may not apply to the brand name Cyanokit.
For the Consumer
Applies to hydroxocobalamin: intravenous powder for solution
Along with its needed effects, hydroxocobalamin (the active ingredient contained in Cyanokit) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor or nurse immediately if any of the following side effects occur while taking hydroxocobalamin:More common
- Blurred vision
- pounding in the ears
- redness of the skin
- slow or fast heartbeat
- Bloating or swelling of the face, arms, hands, lower legs, or feet
- difficult or labored breathing
- difficulty with swallowing
- feeling of warmth
- hives or welts, itching, or skin rash
- large, hive-like swelling on the , eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
- puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
- rapid weight gain
- redness of the face, neck, arms, and occasionally, upper chest
- sudden sweating
- tightness in the chest
- tingling of the hands or feet
- unusual tiredness or weakness
- unusual weight gain or loss
Some side effects of hydroxocobalamin may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:More common
- Blemishes on the skin
- dry, red, hot, or irritated skin
- red colored urine
- Acid or sour stomach
- being forgetful
- redness or swelling of the eyes
- stomach discomfort, upset, or pain
For Healthcare Professionals
Applies to hydroxocobalamin: compounding powder, injectable solution, intravenous powder for injection
Gastrointestinal side effects have included mild transient diarrhea and nausea.[Ref]
Other side effects have included itching and feeling of swelling of the entire body.[Ref]
Dermatologic side effects have included transitory exanthema and erythema.[Ref]
Hypersensitivity side effects have rarely included anaphylactic reactions.[Ref]
Local side effects have included infusion site reaction and pain with injection.[Ref]
Renal side effects have included chromaturia.
Cardiovascular side effects, following intravenous administration, have included increased blood pressure.[Ref]
1. "Product Information. Hydro-Cobex (hydroxocobalamin)." Major Pharmaceuticals Inc, Rosemont, IL.
2. "Product Information. Cyanokit (hydroxocobalamin)." Meridian Medical Technologies Inc, Columbia, MD.
Some side effects of Cyanokit may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.
More about Cyanokit (hydroxocobalamin)
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- Drug class: vitamins
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