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In this Article

• What is hydroxocobalamin (Cyanokit)?
• What are the possible side effects of hydroxocobalamin (Cyanokit)?
• What is the most important information I should know about hydroxocobalamin (Cyanokit)?
• What should I discuss with my health care provider after receiving hydroxocobalamin (Cyanokit)?
• How should I take hydroxocobalamin (Cyanokit)?
• What happens if I miss a dose (Cyanokit)?
• What happens if I overdose (Cyanokit)?
• What should I avoid while taking hydroxocobalamin (Cyanokit)?
• What other drugs will affect hydroxocobalamin (Cyanokit)?
• Where can I get more information?

What should I discuss with my health care provider after receiving hydroxocobalamin (Cyanokit)?

Hydroxocobalamin is usually given in an emergency, so you may not have time to tell your caregivers about any medical conditions you have. However, you will need follow-up medical care after receiving this medication. Tell your doctor if you have:

• high blood pressure;
• heart disease; or
• congestive heart failure.

FDA pregnancy category C. This medication may be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.

It is not known whether hydroxocobalamin passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

How should I take hydroxocobalamin (Cyanokit)?

Hydroxocobalamin is given as an injection through a needle placed into a vein, most often in an emergency situation. The medicine must be given slowly through an IV infusion, and can take about 15 minutes to complete.

Hydroxocobalamin is usually given only once. However, you may receive a second dose if needed.

You may develop an acne-like skin rash from 1 week to as late as 4 weeks after you were treated with hydroxocobalamin. This rash should go away without treatment. Call your doctor if you have a rash that does not clear up on its own.

This medication can cause you to have unusual results with certain medical tests. Tell any doctor who treats you that you have recently received a hydroxocobalamin injection.