- It is used to treat anemia.
- It is used to treat or prevent low vitamin B12.
- It is used to treat cyanide poisoning.
- If you have an allergy to hydroxocobalamin or any other part of this drug.
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- Tell all of your health care providers that you take this drug. This includes your doctors, nurses, pharmacists, and dentists.
- Have blood work checked as you have been told by the doctor. Talk with the doctor.
- This drug may affect certain lab tests. Tell all of your health care providers and lab workers that you take this drug.
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using this drug while you are pregnant.
- Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.
- High blood pressure may rarely happen.
- You may have skin redness for up to 2 weeks and change in the color of urine to red for up to 5 weeks after getting this drug. Avoid sun, sunlamps, and tanning beds while your skin is red. Talk with your doctor.
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of low potassium levels like muscle pain or weakness, muscle cramps, or a heartbeat that does not feel normal.
- Pain where the shot was given.
- Very bad irritation where the shot was given.
- Swelling in the arms or legs.
- Very bad headache.
- Black, tarry, or bloody stools.
- Trouble swallowing.
- Memory problems or loss.
- Change in eyesight, eye pain, or very bad eye irritation.
- A heartbeat that does not feel normal.
- A fast heartbeat.
- Loose stools (diarrhea).
- Irritation where the shot is given.
- Upset stomach or throwing up.
- Belly pain.
- Pimples (acne).
- It is given as a shot into a vein over a period of time.
All other products:
- It is given as a shot into a muscle.
- Your doctor may teach you how to give the shot.
- Follow how to use carefully.
- Wash your hands before and after use.
- Do not use if the solution is cloudy, leaking, or has particles.
- Do not use if solution changes color.
- Throw away needles in a needle/sharp disposal box. Do not reuse needles or other items. When the box is full, follow all local rules for getting rid of it. Talk with a doctor or pharmacist if you have any questions.
- Call your doctor to find out what to do.
All other products:
- Take a missed dose as soon as you think about it.
- If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
- Do not take 2 doses at the same time or extra doses.
- If you need to store this drug at home, talk with your doctor, nurse, or pharmacist about how to store it.
All other products:
- Most of the time, this drug will be given in a hospital or doctor’s office. If stored at home, follow how to store as you were told by the doctor.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Check with your pharmacist about how to throw out unused drugs.
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else’s drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.