Scorpion (Centruroides Immune F)

Scorpion (Centruroides) immune F(ab)2 is an injectable solution used in the treatment of scorpion stings. It is produced from horse proteins that have undergone immunization by being infused with the venom from a scorpion.


Scorpion (Centruroides) immune F(ab)2 is an anti-venom commonly used for the treatment of scorpion stings. It is an injectable solution, produced from horse proteins, which have been subjected to the venom of a scorpion in order to promote immunity from the effects of a sting.

Scorpion stings have been known to cause vomiting, difficulty with breathing, slurred speech, shortness whilst breathing, inability to control muscles, increased or excessive watering in the mouth, or abnormal and unusual movements of the eye.

Scorpion (Centruroides) immune F(ab)2 injection must only ever be administered by a trained medical doctor, or under their direct supervision.

Scorpion (Centruroides) immune F(ab)2 is available in the following forms:

  • Powder for solution

Conditions Treated

Type of Medicine

  • Anti-venom

Side Effects

Alongside its expected and desired effects, any medication might result in some less desirable effects. Whilst there is no guarantee that all of the side effects (or any of them) might occur, should any of them do so you may require medical attention.

Should any of these side effects listed exhibit themselves during your course of treatment with Scorpion (Centruroides) immune F(ab)2, you should immediately consult your prescribing doctor.

  • Wheezing
  • Weakness
  • Trembling, unsteadiness, or any other issues concerning coordination or control of muscles
  • Troubled breathing
  • Tightness in the chest
  • Swelling of the lymph glands
  • Swelling around the eye
  • Sore throat
  • Sneezing
  • Shortness of breathing
  • Unsteady walk, and general shakiness
  • Rash
  • Muscle aches
  • Itching
  • Joint inflammation
  • Chills or fever
  • Generalised discomfort
  • Racing, pounding, irregular, or fast pulse or heartbeat
  • Fast heartbeat
  • Dizziness
  • Cough
  • Confusion
  • Chest pain

The effects listed above might require the attention of a medical expert. However, other side effects might also present themselves, which do not require medical attention. Many of the negative effects ought to resolve themselves during your course of treatment, as your body acclimatizes to the drug. Further, your doctor could possibly recommend ways in which you can prevent, or reduce certain of the negative impacts from which you are suffering. If one or more of the effects listed here should become bothersome, or should they continue as you take your course of medication, it is advisable that you consult your doctor.

  • Vomiting
  • Unusual feelings of sluggishness, weakness, tiredness, dullness, or drowsiness
  • Swollen joints
  • Runny nose
  • Nausea
  • Muscle stiffness or pains
  • Muscle cramping
  • Joint pain
  • Headache
  • Difficulty whilst moving
  • Diarrhea

The effects listed above are not exhaustive, and there might be other negative impacts that present themselves as a result of taking Scorpion (Centruroides) immune F(ab)2. If you become aware of any negative effects during your course of treatment, arrange a consultation with your prescribing doctor.


Scorpion (Centruroides) immune F(ab)2 is only ever administered by your prescribing doctor, your nurse or another healthcare professional with appropriate training. The drug will be given in the hospital, administered through a needle directly into a vein.


Some medications should never be administered concurrently, under any circumstances. However, there may be certain situations where two or more different drugs can be taken alongside each other, despite there being evidence of an interaction between them taking place. Under these circumstances, the examining doctor could elect to alter the dosage of either drug or, alternatively, might offer a recommendation for further precautions. When taking Scorpion (Centruroides) immune F(ab)2, it is of vital importance that your doctor is made aware of any other medicines that you might currently be taking.

Because of the known risk of negative interactions occurring, certain drugs should never be taken at the same time as food (or, at least, at the same time as eating certain foodstuffs that prompt a known interaction). Using tobacco or alcohol alongside certain drugs can also result in certain interactions occurring. You should discuss with your examining doctor if you have any concerns about the impact of Scorpion (Centruroides) immune F(ab)2 alongside your consumption of tobacco, alcohol, or foodstuffs.


Anytime you are prescribed a certain medication, you need to weigh up the possible risks of taking it against the potential benefits it is likely to bring to you. This is an important decision, and should only be made following a suitable examination and discussion with your prescribing doctor. When prescribed Scorpion (Centruroides) immune F(ab)2 you ought to consider the following:

Inform your prescribing doctor, should you have suffered an allergic, or any other kind of unusual reaction to Scorpion (Centruroides) immune F(ab)2, or indeed to any other medication. If you have ever suffered from an allergic reaction (or any other kind of negative reaction) to things other than pharmaceuticals. This can include everyday items including foods, preservatives, dyes, and animals.

Appropriate studies conducted to determine the relationship between age and the impact of Scorpion (Centruroides) immune F(ab)2 among the pediatric population have shown not pediatric-specific issues that would make Scorpion (Centruroides) immune F(ab)2 an inappropriate medication for young patients.

Whilst appropriate studies have yet to be conducted to determine the relationship between age and the impact of Scorpion (Centruroides) immune F(ab)2 among the geriatric population, no problems specific to the geriatric population that would preclude or limit the use of Scorpion (Centruroides) immune F(ab)2 amongst elderly patients have been documented.

Studies in animals have shown clear evidence of adverse effects presenting in the unborn fetus with the use of Scorpion (Centruroides) immune F(ab)2. There have been no appropriate studies among women at this time. Pregnant patients are advised to consult their prescribing doctor if they have concerns about using this medication during pregnancy.

There are no appropriate studies conducted amongst women who are breastfeeding that demonstrate that Scorpion (Centruroides) immune F(ab)2 can have harmful effects on a nursing infant. Patients who are currently breastfeeding are advised to discuss with their prescribing doctor the potential risks and potential benefits of taking this medication.

Your prescribing doctor shall check your progress during your course of treatment with this medication. This allows the doctor to confirm that the drug is working as it should, and to decide whether you need to continue receiving it.

Scorpion (Centruroides) immune F(ab)2 can cause a serious allergic reaction such as anaphylaxis, which has been known to be life-threatening in some cases, and medical attention should be sought immediately. Consult your doctor as soon as possible, should you develop any of these symptoms during your course of treatment with Scorpion (Centruroides) immune F(ab)2: swelling of mouth, face, or hands; difficulty with swallowing or breathing; hoarseness; rashes or itching skin.

Call your doctor or the emergency department right away if you or your child have a delayed allergic reaction or serum sickness, which may occur up to 14 days after receiving this medicine. The symptoms may include a rash, itching skin, fever, general feeling of discomfort or illness, joint or muscle pain, unusual tiredness or weakness, or swollen, painful, or tender lymph glands in the neck, armpit, or groin.

The power solution that makes up Scorpion (Centruroides) immune F(ab)2 is produced using horse proteins, which are themselves extracted from the blood of horses. Evidence suggests that certain products made from or with horse's blood have resulted in the transmission of certain types of viruses into the bloodstreams of patient's who were injected with them. The odds of getting a virus as a result of taking medication produced from proteins found in horse blood have been reduced significantly over recent years, thanks to the required testing administered upon horses to determine the presence of those same viruses. These same tests are also run during the production of Scorpion (Centruroides) immune F(ab)2. Whilst the risk you run is incredibly low, should you have any sort of concern on this front, consult your doctor.

Certain medical conditions can have an impact on the efficacy of Scorpion (Centruroides) immune F(ab)2. Be sure that your prescribing doctor is aware of any medical conditions you have, but particularly any of those listed here.

Scorpion (Centruroides) immune F(ab)2 must be used with caution in any patient suffering from the following conditions, as the likelihood of an allergic reaction can be increased.

  • Allergic reaction to horse protein
  • Previous use of anti-venoms produced with horse proteins


Scorpion (Centruroides) immune F(ab)2 is only ever administered by your prescribing doctor, or another healthcare professional. Therefore there should never be a need to store the medication at home.


Scorpion (Centruroides) immune F(ab)2 is an anti-venom injection used in the treatment of scorpion stings. It is produced from horse proteins, which have been subjected to the venom of a scorpion to promote immunity from the effects of a sting.


Last Reviewed:
February 01, 2018
Last Updated:
February 10, 2018
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