I. See Also

III. Physiology

  1. Absorbed in Small Intestine
  2. Functions
    1. Cofactor for polymerases and proteases (functions in Wound Repair, cell regeneration)
    2. Cofactor for thymulin (T-Cell maturation related hormone)
    3. Antioxidant
      1. Reduces cytokine expression (associated with organ failure and Sepsis)

IV. Adverse Effects

  1. Gastrointestinal effects
    1. Metallic Taste
    2. Nausea or Vomiting
    3. Abdominal cramping
    4. Diarrhea
  2. Genitourinary effects
    1. Urinary Tract Infection
    2. Nephrolithiasis
  3. Miscellaneous effects
    1. Decreased HDL Cholesterol

V. Contraindications

  1. Pregnancy and Lactation in excess of RDA (unless significant deficiency)

VI. Preparations

  1. Zinc Acetate: 25 mg (7.5 mg elemental zinc), 50 mg (15 mg elemental zinc)
  2. Zinc Gluconate: 50 mg (7 mg elemental zinc), 100 mg (14 mg elemental zinc)
  3. Zinc Sulfate: 110 mg (25 mg elemental zinc), 220 mg (50 mg elemental zinc)
  4. Zinc Oxide: 100 mg (80 mg elemental zinc)

VII. Dosing: Recommended Daily Allowance (RDA)

  1. Age 0-6 months: 2 mg elemental zinc
  2. Age 7-36 months: 3 mg elemental zinc
  3. Age 4-8: 5 mg elemental zinc
  4. Age 9-13: 8 mg elemental zinc
  5. Age 14 and older: 11 mg (men) or 8 mg (women) elemental zinc
  6. Pregnancy and Lactation: 11-12 mg elemental zinc

IX. Efficacy: Possible Benefit

  1. Pediatric Diarrhea
    1. Zinc 5-20 mg orally daily
    2. Lukacik (2008) Pediatrics 121(2): 326-36 [PubMed] (or open in [QxMD Read])
  2. Macular Degeneration (protection from oxidative stress)
    1. Grahn (2001) J Am Coll Nutr 20:106-18 [PubMed] (or open in [QxMD Read])
  3. Pediatric Pneumonia
    1. Zinc supplementation associated with decreased mortality, shorter hospitalizations and fewer treatment failures
    2. Greatest benefit appears to be in developing countries where Zinc Deficiency occurs frequently (30% of world population)
    3. Basnet (2012) Pediatrics 129(4): 701-8 [PubMed] (or open in [QxMD Read])
    4. Srinivasan (2012) BMC Med 10: 14 [PubMed] (or open in [QxMD Read])
  4. Pregnancy
    1. Zinc (25 mg) in Prenatal Vitamins
    2. Effects
      1. Increased birth weight and Head Circumference
      2. Resulted in birth at later Gestational age
      3. Resulted in shorter hospital stay
      4. Greatest benefit in thin women
    3. Goldenberg (1995) JAMA 274:463-8 [PubMed] (or open in [QxMD Read])

XI. Drug Interactions

  1. Absorption decreased by zinc
    1. Penicillamine
    2. Tetracyclines
    3. Quinolones
  2. Interfere with zinc absorption (avoid within 2 hours of zinc dose)
    1. Iron supplements
    2. Grains or legumes (phytates)

Images: Related links to external sites (from Google)

Cost: Medications

Dialyvite/Zinc (on 2/9/2012 at DrugStore.com)
Dialyvite/Zinc 100 Tablets Bottle #1 for $32.82 ($32.82/unit)
Nicotinamide w/Zinc-Copper-FA (on 2/9/2012 at DrugStore.com)
Nicotinamide w/Zinc-Copper-FA 750-25-1.5-0.5mg Tablets #60 for $65.99 ($1.10/unit)

Ontology: Zinc (C0043481)

Definition (CSP) metallic trace element, atomic symbol Zn, atomic number 30; necessary in the diet, forms an essential part of many enzymes, and plays an important role in protein synthesis and in cell division.
Definition (MSH) A metallic element of atomic number 30 and atomic weight 65.38. It is a necessary trace element in the diet, forming an essential part of many enzymes, and playing an important role in protein synthesis and in cell division. Zinc deficiency is associated with ANEMIA, short stature, HYPOGONADISM, impaired WOUND HEALING, and geophagia. It is known by the symbol Zn.
Definition (NCI) An element with atomic symbol Zn, atomic number 30, and atomic weight 65.39.
Concepts Pharmacologic Substance (T121) , Biologically Active Substance(T123) , Element, Ion, or Isotope(T196)
MSH D015032
SnomedCT 350591008, 86739005, 387254007, 46856009
English Zinc preparation, Zinc, zinc, Zinc preparation, NOS, Zinc, NOS, Zn, zinc (medication), mineral supplements zinc, ZN, Zinc [Chemical/Ingredient], [TN450] ZINC, ZINC, zinc preparation, zn, Zn element, Zinc product, Zn - Zinc, Zinc (substance), Zinc product (product), Zinc preparation (substance), Zinc product (substance)
Swedish Zink
Czech zinek
Finnish Sinkki
Spanish zinc (producto), producto con cinc (producto), zinc, producto con zinc, Zinc, Cinc, producto con cinc, cinc (sustancia), cinc, producto (producto), cinc, producto (sustancia), cinc, producto, cinc, preparado de cinc (sustancia), preparado de cinc, preparado de zinc, zinc, producto
Croatian CINK
Latvian Cinks
Polish Cynk
French Zinc
German Zink
Italian Zinco
Portuguese Zinco