Sickle Cell Anemia Medication

  • Author: Joseph E Maakaron, MD; Chief Editor: Emmanuel C Besa, MD   more...
 
Updated: Jan 3, 2012
 

Medication Summary

The drugs used in treatment of sickle cell disease (SCD) include antimetabolites, analgesics, antibiotics, and vaccines.

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Antimetabolites

Class Summary

Hydroxyurea affects DNA, resulting in increased production of Hb F, which inhibits sickling. Considerable effort is being expended to identify agents whose ultimate effect interferes with the sickling process and prevents the many complications of sickle cell disease.

Hydroxyurea (Droxia)

 

Hydroxyurea inhibits deoxynucleotide synthesis. Its myelosuppressive effects last a few days to a week and are easier to control than those of alkylating agents.

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Opioid Analgesics

Class Summary

Opioid analgesics are used to control acute crisis and chronic pain.

Oxycodone and aspirin (Percodan, Roxiprin)

 

This drug combination is indicated for the relief of moderate to severe pain.

Methadone (Dolophine)

 

Methadone is used in the management of severe pain. It inhibits ascending pain pathways, diminishing the perception of and response to pain.

Morphine sulfate (Duramorph, Astramorph, MS Contin, Avinza, Kadian)

 

An opioid analgesic, morphine interacts with endorphin receptors in the CNS.

Oxycodone and acetaminophen (Percocet, Roxicet, Roxilox)

 

This drug combination is indicated for the relief of moderate to severe pain. It is the drug of choice for patients who are hypersensitive to aspirin.

Fentanyl citrate

 

A synthetic opioid analgesic that is primarily a mu receptor agonist, fentanyl is 50-100 times more potent than morphine. It has short duration of action (1-2 h) and minimal cardiovascular effects, such as hypotension. Respiratory depression is uncommon, but this effect lasts longer than its analgesic effect. Fentanyl is frequently used in patient-controlled analgesia for relief of pain. Unlike morphine, fentanyl is not commonly associated with histamine release.

Nalbuphine

 

An opioid agonist/antagonist, nalbuphine stimulates kappa opioid receptor in the CNS, which causes inhibition of ascending pain pathways. An antagonist at the opioid mu receptors, it is useful for moderate-to-severe pain in sickle cell disease.

Codeine

 

Codeine binds to opiate receptors in the CNS, causing inhibition of ascending pain pathways, altering perception and response to pain.

Acetaminophen with codeine (Tylenol-3)

 

This combination is a mild narcotic analgesic. Provide the family with a small supply for use when pain severity is greater than can be managed with acetaminophen alone. Counsel parents to use for severe pain only, not as the first medication for each symptom.

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Nonsteroidal Analgesics

Class Summary

Acetaminophen and nonsteroidal anti-inflammatory drugs (NSAIDs) add to the effects of opioids during painful crisis. This allows use of lower doses of narcotics.

Ketorolac

 

Ketorolac is an intravenously administered NSAID and a very powerful analgesic. It inhibits prostaglandin synthesis by decreasing activity of the enzyme cyclooxygenase, which results in decreased formation of prostaglandin precursors. In turn, this results in reduced inflammation.

Aspirin (Anacin, Ascriptin, Bayer Aspirin)

 

Aspirin treats mild to moderate pain. It inhibits prostaglandin synthesis, which prevents formation of platelet-aggregating thromboxane A2.

Acetaminophen (Tylenol, Aspirin-Free Anacin)

 

Acetaminophen is the drug of choice for pain in patients with documented hypersensitivity to aspirin or NSAIDs, with upper GI disease, or who are taking oral anticoagulants.

Ibuprofen (Advil, Motrin)

 

Ibuprofen is usually the drug of choice for treatment of mild to moderate pain, if no contraindications exist. It inhibits inflammatory reactions and pain by decreasing the activity of the enzyme cyclo-oxygenase, resulting in inhibition of prostaglandin synthesis.

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Vitamins

Class Summary

Folate is necessary for erythropoiesis. Supplemental folic acid replenishes depleted folate stores secondary to hemolysis.

Folic acid

 

Folic acid is nnecessary for proper nucleotide metabolism. It is an important cofactor for enzymes used in production of RBCs.

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Antibiotics

Class Summary

These agents are used for treatment of suspected or confirmed infections.

Cefuroxime (Ceftin, Zinacef)

 

Cefuroxime is a second-generation cephalosporin that maintains the gram-positive activity of first-generation cephalosporins and adds activity against Proteus mirabilis, Haemophilus influenzae, Escherichia coli, Klebsiella pneumoniae, and Moraxella catarrhalis. The condition of the patient, severity of infection, and susceptibility of the microorganism should determine proper dose and route of administration.

Amoxicillin and clavulanate (Augmentin, Augmentin XR, Augmentin ES-600)

 

This drug combination extends the antibiotic spectrum of this penicillin to include bacteria normally resistant to beta-lactam antibiotics. It is indicated for skin and skin structure infections caused by beta-lactamase-producing strains of Staphylococcus aureus. Administer treatment for a minimum of 10 d.

Penicillin VK

 

Penicillin inhibits the biosynthesis of cell wall mucopeptide.

Ceftriaxone (Rocephin)

 

A third-generation cephalosporin, ceftriaxone is the most common antibiotic used in the management of fever in patients with sickle cell disease in the acute care/ED setting. This agent is widely distributed throughout the body, including gallbladder, lungs, bone, bile, and cerebrospinal fluid (CSF); ceftriaxone diffuses into the CSF at higher concentrations when the meninges are inflamed.

Azithromycin (Zithromax)

 

Azithromycin is a macrolide antibiotic that is useful for treatment of

community-acquired pneumonia in sickle cell disease, as an adjunct to a cephalosporin to cover Chlamydia or Mycoplasma infections.

Cefaclor (Raniclor)

 

A second-generation cephalosporin, cefaclor is indicated for infections caused by susceptible gram-positive cocci and gram-negative rods.

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Phosphodiesterase Type 5 Inhibitors

Class Summary

Phosphodiesterase type 5 (PDE5) inhibitors are used to treat pulmonary hypertension associated with sickle cell disease. These agents are also used to prevent priapism associated with sickle cell disease.

Sildenafil (Revatio)

 

Sildenafil promotes selective smooth muscle relaxation in lung vasculature, possibly by inhibiting PDE5. This results in a subsequent reduction of blood pressure in pulmonary arteries and an increase in cardiac output.

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Endothelin Receptor Antagonists

Class Summary

These agents are used for pulmonary hypertension associated with sickle cell disease.

Bosentan (Tracleer)

 

Bosentan improves pulmonary arterial hemodynamics by competitively binding to ET-1 receptors endothelin-A and endothelin-B in pulmonary vascular endothelium and pulmonary vascular smooth muscle. This leads to a significant increase in cardiac index associated with a significant reduction in pulmonary artery pressure, pulmonary vascular resistance, and mean right atrial pressure.

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Iron Chelators

Class Summary

Iron overload is a consequence of the numerous transfusions required and may lead to complications such as heart or liver failure. Iron chelators help maintain hemoglobin levels within the desired range.

Deferoxamine mesylate (Desferal)

 

Deferoxamine helps prevent damage to the liver and bone marrow from iron deposition by promoting renal and hepatic excretion in urine and bile in feces. It readily chelates iron from ferritin and hemosiderin but not from transferrin. It does not affect iron in the cytochromes or hemoglobin. This agent is most effective when administered by continuous infusion. It gives urine a red discoloration.

Deferasirox (Exjade)

 

Deferasirox is an orally administered iron chelation agent that has been shown to reduce the liver iron concentration in adults and children who receive repeated RBC transfusions. It binds iron with high affinity in a 2:1 ratio.

Deferiprone (Ferriprox)

 

Deferiprone (1,2 dimethyl-3-hydroxypyridine-4-one) is a member of a family of hydroxypyridine-4-one (HPO) chelators that requires 3 molecules to fully bind iron (III), each molecule providing 2 coordination sites (bidentate chelation). It is designated as an orphan drug in the United States.

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Antiemetics

Class Summary

These agents are useful in the treatment of symptomatic nausea.

Promethazine (Phenergan)

 

Phenergan is used for symptomatic treatment of nausea in vestibular dysfunction. Antidopaminergic agent effective in the treatment of emesis. It blocks postsynaptic mesolimbic dopaminergic receptors in the brain and reduces stimuli to the brainstem reticular system.

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Contributor Information and Disclosures
Author

Joseph E Maakaron, MD  Research Fellow, Department of Internal Medicine, American University of Beirut, Lebanon

Disclosure: Nothing to disclose.

Coauthor(s)

Ali Taher  MD, Professor of Medicine, Division of Hematology and Oncology, American University of Beirut Medical Center

Disclosure: Nothing to disclose.

Ulrich Josef Woermann, MD  Consulting Staff, Division of Instructional Media, Institute for Medical Education, University of Bern, Switzerland

Disclosure: Nothing to disclose.

Chief Editor

Emmanuel C Besa, MD  Professor, Department of Medicine, Division of Hematologic Malignancies, Kimmel Cancer Center, Jefferson Medical College of Thomas Jefferson University

Emmanuel C Besa, MD is a member of the following medical societies: American Association for Cancer Education, American College of Clinical Pharmacology, American Federation for Medical Research, American Society of Clinical Oncology, American Society of Hematology, and New York Academy of Sciences

Disclosure: Nothing to disclose.

Additional Contributors

Roy Alson, MD, PhD, FACEP, FAAEM Associate Professor, Department of Emergency Medicine, Wake Forest University School of Medicine; Medical Director, Forsyth County EMS; Deputy Medical Advisor, North Carolina Office of EMS; Associate Medical Director, North Carolina Baptist AirCare

Roy Alson, MD, PhD, FACEP, FAAEM is a member of the following medical societies: Air Medical Physician Association, American Academy of Emergency Medicine, American College of Emergency Physicians, American Medical Association, National Association of EMS Physicians, North Carolina Medical Society, Society for Academic Emergency Medicine, and World Association for Disaster and Emergency Medicine

Disclosure: Nothing to disclose.

Jeffrey L Arnold, MD, FACEP Chairman, Department of Emergency Medicine, Santa Clara Valley Medical Center

Jeffrey L Arnold, MD, FACEP is a member of the following medical societies: American Academy of Emergency Medicine and American College of Physicians

Disclosure: Nothing to disclose.

Robert J Arceci, MD, PhD King Fahd Professor of Pediatric Oncology, Professor of Pediatrics, Oncology and the Cellular and Molecular Medicine Graduate Program, Kimmel Comprehensive Cancer Center at Johns Hopkins University School of Medicine

Robert J Arceci, MD, PhD is a member of the following medical societies: American Association for Cancer Research, American Association for the Advancement of Science, American Pediatric Society, American Society of Hematology, and American Society of Pediatric Hematology/Oncology

Disclosure: Nothing to disclose.

Wadie F Bahou, MD Chief, Division of Hematology, Hematology/Oncology Fellowship Director, Professor, Department of Internal Medicine, State University of New York at Stony Brook

Wadie F Bahou, MD is a member of the following medical societies: American Society of Hematology

Disclosure: Nothing to disclose.

Dvorah Balsam, MD Chief, Division of Pediatric Radiology, Nassau University Medical Center; Professor, Department of Clinical Radiology, State University of New York at Stony Brook

Disclosure: Nothing to disclose.

Salvatore Bertolone, MD Director, Division of Pediatric Hematology/Oncology, Department of Pediatrics, Kosair Children's Hospital; Professor, University of Louisville School of Medicine

Salvatore Bertolone, MD is a member of the following medical societies: American Academy of Pediatrics, American Association for Cancer Education, American Association of Blood Banks, American Cancer Society, American Society of Hematology, American Society of Pediatric Hematology/Oncology, and Kentucky Medical Association

Disclosure: Nothing to disclose.

Barry E Brenner, MD, PhD, FACEP Professor of Emergency Medicine, Professor of Internal Medicine, Program Director, Emergency Medicine, Case Medical Center, University Hospitals, Case Western Reserve University School of Medicine

Barry E Brenner, MD, PhD, FACEP is a member of the following medical societies: Alpha Omega Alpha, American Academy of Emergency Medicine, American College of Chest Physicians, American College of Emergency Physicians, American College of Physicians, American Heart Association, American Thoracic Society, Arkansas Medical Society, New York Academy of Medicine, New York Academy of Sciences, and Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

Marcel E Conrad, MD Distinguished Professor of Medicine (Retired), University of South Alabama College of Medicine

Marcel E Conrad, MD is a member of the following medical societies: Alpha Omega Alpha, American Association for the Advancement of Science, American Association of Blood Banks, American Chemical Society, American College of Physicians, American Physiological Society, American Society for Clinical Investigation, American Society of Hematology, Association of American Physicians, Association of Military Surgeons of the US, International Society of Hematology, Society for Experimental Biology and Medicine, and Southwest Oncology Group

Disclosure: No financial interests None None

Nedra R Dodds, MD Medical Director, Opulence Aesthetic Medicine

Nedra R Dodds, MD is a member of the following medical societies: American Academy of Anti-Aging Medicine, American Academy of Cosmetic Surgery, American College of Emergency Physicians, American Medical Association, National Medical Association, and Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

James L Harper, MD Associate Professor, Department of Pediatrics, Division of Hematology/Oncology and Bone Marrow Transplantation, Associate Chairman for Education, Department of Pediatrics, University of Nebraska Medical Center; Assistant Clinical Professor, Department of Pediatrics, Creighton University School of Medicine; Director, Continuing Medical Education, Children's Memorial Hospital; Pediatric Director, Nebraska Regional Hemophilia Treatment Center

James L Harper, MD is a member of the following medical societies: American Academy of Pediatrics, American Association for Cancer Research, American Federation for Clinical Research, American Society of Hematology, American Society of Pediatric Hematology/Oncology, Council on Medical Student Education in Pediatrics, and Hemophilia and Thrombosis Research Society

Disclosure: Nothing to disclose.

Adlette Inati, MD Head, Division of Pediatric Hematology-Oncology, Medical Director, Children's Center for Cancer and Blood Diseases, Rafik Hariri University Hospital; Research Associate, Balamand University; Head of Post Bone Marrow Transplant Clinic and Consultant Hematologist, Chronic Care Center; Founding Faculty, Lebanese American University School of Medicine, Lebanon

Adlette Inati, MD is a member of the following medical societies: Alpha Omega Alpha, American Society of Hematology, European Hematology Association, and International Society of Hematology

Disclosure: Nothing to disclose.

Ziad N Kazzi, MD Assistant Professor, Department of Emergency Medicine, Emory University; Medical Toxicologist, Georgia Poison Center

Ziad N Kazzi, MD is a member of the following medical societies: American Academy of Clinical Toxicology, American Academy of Emergency Medicine, American College of Emergency Physicians, and American College of Medical Toxicology

Disclosure: Nothing to disclose.

Richard S Krause, MD Senior Clinical Faculty/Clinical Assistant Professor, Department of Emergency Medicine, University of Buffalo State University of New York School of Medicine and Biomedical Sciences

Richard S Krause, MD is a member of the following medical societies: Alpha Omega Alpha, American Academy of Emergency Medicine, American College of Emergency Physicians, and Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

Ashok B Raj, MD Associate Professor, Section of Pediatric Hematology and Oncology, Department of Pediatrics, Kosair Children's Hospital, University of Louisville School of Medicine

Ashok B Raj, MD is a member of the following medical societies: American Academy of Pediatrics, American Society of Pediatric Hematology/Oncology, Children's Oncology Group, and Kentucky Medical Association

Disclosure: Nothing to disclose.

Sharada A Sarnaik, MBBS Professor of Pediatrics, Wayne State University School of Medicine; Director, Sickle Cell Center, Attending Hematologist/Oncologist, Children's Hospital of Michigan

Sharada A Sarnaik, MBBS is a member of the following medical societies: American Association of Blood Banks, American Association of University Professors, American Society of Hematology, American Society of Pediatric Hematology/Oncology, New York Academy of Sciences, and Society for Pediatric Research

Disclosure: Nothing to disclose.

Hosseinali Shahidi, MD, MPH Assistant Professor, Departments of Emergency Medicine and Pediatrics, State University of New York and Health Science Center at Brooklyn

Hosseinali Shahidi, MD, MPH is a member of the following medical societies: American Academy of Pediatrics, American College of Emergency Physicians, and American Public Health Association

Disclosure: Nothing to disclose.

Francisco Talavera, PharmD, PhD Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Medscape Salary Employment

Garry Wilkes MBBS, FACEM, Director of Emergency Medicine, Calvary Hospital, Canberra, ACT; Adjunct Associate Professor, Edith Cowan University; Clinical Associate Professor, Rural Clinical School, University of Western Australia

Disclosure: Nothing to disclose.

Mary L Windle, PharmD, Adjunct Associate Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Nothing to disclose.

Grace M Young, MD Associate Professor, Department of Pediatrics, University of Maryland Medical Center

Grace M Young, MD is a member of the following medical societies: American Academy of Pediatrics and American College of Emergency Physicians

Disclosure: Nothing to disclose.

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Molecular and cellular changes of hemoglobin S.
Skeletal sickle cell anemia. H vertebrae. Lateral view of the spine shows angular depression of the central portion of each upper and lower endplate.
Peripheral blood with sickled cells at 400X magnification. Image courtesy of Ulrich Woermann, MD.
Peripheral blood smear with sickled cells at 1000X magnification. Image courtesy of Ulrich Woermann, MD.
Peripheral blood smear with Howell-Jolly body, indicating functional asplenism. Image courtesy of Ulrich Woermann, MD.
Effects of therapy with hydroxyurea.
Skeletal sickle cell anemia. Bone-within-bone appearance. Following multiple infarctions of the long bones, sclerosis may assume the appearance of a bone within a bone, reflecting the old cortex within the new cortex.
Table. Schedule of Laboratory Tests for Patients With Sickle Cell Disease
TestsAgeFrequency
CBC count with WBC differential,



reticulocyte count



3-24 mo



>24 mo



every 3 mo



every 6 mo



Percent Hb F6-24 mo



>24 mo



every 6 mo



annually



Renal function (creatinine, BUN, urinalysis)≥ 12 moannually
Hepatobiliary function (ALT, fractionated bilirubin)≥ 12 moannually
Pulmonary function (transcutaneous O2 saturation)≥ 12 moevery 6 mo
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