Cobal 1000 Side Effects

Generic name: cyanocobalamin

Medically reviewed by Drugs.com. Last updated on Sep 24, 2024.

Note: This document provides detailed information about Cobal 1000 Side Effects associated with cyanocobalamin. Some dosage forms listed on this page may not apply specifically to the brand name Cobal 1000.

Applies to cyanocobalamin: intramuscular solution.

Other dosage forms:

• nasal spray

Serious side effects of Cobal 1000

Along with its needed effects, cyanocobalamin (the active ingredient contained in Cobal 1000) 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 cyanocobalamin:

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

Other side effects of Cobal 1000

Some side effects of cyanocobalamin 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:

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 liquid, oral tablet, oral tablet chewable, oral tablet disintegrating, oral tablet extended release, sublingual liquid, sublingual lozenge, sublingual tablet.

Cardiovascular

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

Hypersensitivity

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

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

Further information

Cobal 1000 side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

Medical Disclaimer