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Cyomin Side Effects

Generic Name: cyanocobalamin

Note: This page contains information about the side effects of cyanocobalamin. Some of the dosage forms included on this document may not apply to the brand name Cyomin.

For the Consumer

Applies to cyanocobalamin: intramuscular solution

Other dosage forms:

In addition to its needed effects, some unwanted effects may be caused by cyanocobalamin (the active ingredient contained in Cyomin). In the event that any of these side effects do occur, they may require medical attention.

If any of the following side effects occur while taking cyanocobalamin, check with your doctor or nurse immediately:

Incidence not known:
  • Abdominal or stomach pain
  • bleeding from the gums or nose
  • blue lips and fingernails
  • chest pain
  • cough
  • coughing that sometimes produces a pink frothy sputum
  • decreased urine output
  • difficult, fast, noisy breathing, sometimes with wheezing
  • difficulty with swallowing
  • dilated neck veins
  • dizziness
  • extreme fatigue
  • eye pain
  • fast heartbeat
  • headache
  • hives, itching, or skin rash
  • increased sweating
  • irregular breathing
  • irregular heartbeat
  • pale skin
  • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  • ringing in the ears
  • swelling of the face, fingers, feet, or lower legs
  • tightness in the chest
  • unusual tiredness or weakness
  • weight gain

Minor Side Effects

Some of the side effects that can occur with cyanocobalamin may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

Incidence not known:
  • Diarrhea
  • skin rash with a general disease

For Healthcare Professionals

Applies to cyanocobalamin: compounding powder, injectable solution, intramuscular solution, nasal gel, nasal spray, oral tablet, oral tablet extended release, sublingual lozenge, sublingual tablet

Cardiovascular

Frequency not reported: Congestive heart failure, peripheral vascular thrombosis, cardiac arrest, low blood pressure[Ref]

Hypersensitivity

Patients sensitized to the injectable product are often able to tolerate the oral route without problems.[Ref]

Frequency not reported: Anaphylactic shock and death, allergic hypersensitivity reactions[Ref]

Gastrointestinal

Frequency not reported: Mild transient diarrhea, prolonged abdominal pain, prolonged nausea or vomiting[Ref]

Nervous system

Frequency not reported: Severe dizziness, drowsiness, muscular paralysis, loss of consciousness[Ref]

Dermatologic

Frequency not reported: Itching, transitory exanthema, acneiform eruptions, bullous eruptions[Ref]

Respiratory

Frequency not reported: Pulmonary edema[Ref]

Metabolic

Frequency not reported: Hypokalemia[Ref]

Oncologic

Frequency not reported: Polycythemia vera[Ref]

Ocular

Frequency not reported: Vision problems[Ref]

Other

Frequency not reported: Feeling of swelling of entire body[Ref]

References

1. Cerner Multum, Inc. "Australian Product Information." O 0

2. "Product Information. Cyanocobalamin (cyanocobalamin)." West-Ward Pharmaceutical Corporation, Eatontown, NJ.

3. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0

Not all side effects for Cyomin may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. Drugs.com does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.

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