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2D Structure
Also known as: L-glutamine, 56-85-9, Levoglutamide, L-(+)-glutamine, Glutamic acid amide, H-gln-oh
Molecular Formula
C5H10N2O3
Molecular Weight
146.14  g/mol
InChI Key
ZDXPYRJPNDTMRX-VKHMYHEASA-N
FDA UNII
0RH81L854J

A non-essential amino acid present abundantly throughout the body and is involved in many metabolic processes. It is synthesized from GLUTAMIC ACID and AMMONIA. It is the principal carrier of NITROGEN in the body and is an important energy source for many cells.
Glutamine is an Amino Acid.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
(2S)-2,5-diamino-5-oxopentanoic acid
2.1.2 InChI
InChI=1S/C5H10N2O3/c6-3(5(9)10)1-2-4(7)8/h3H,1-2,6H2,(H2,7,8)(H,9,10)/t3-/m0/s1
2.1.3 InChI Key
ZDXPYRJPNDTMRX-VKHMYHEASA-N
2.1.4 Canonical SMILES
C(CC(=O)N)C(C(=O)O)N
2.1.5 Isomeric SMILES
C(CC(=O)N)[C@@H](C(=O)O)N
2.2 Other Identifiers
2.2.1 UNII
0RH81L854J
2.3 Synonyms
2.3.1 MeSH Synonyms

1. D Glutamine

2. D-glutamine

3. L Glutamine

4. L-glutamine

2.3.2 Depositor-Supplied Synonyms

1. L-glutamine

2. 56-85-9

3. Levoglutamide

4. L-(+)-glutamine

5. Glutamic Acid Amide

6. H-gln-oh

7. Stimulina

8. Cebrogen

9. (s)-2,5-diamino-5-oxopentanoic Acid

10. Glumin

11. Levoglutamid

12. Glavamin

13. 2-aminoglutaramic Acid

14. Glutamic Acid 5-amide

15. L-glutamide

16. Miglu-p

17. Nutrestore

18. Polyglutamine

19. Saforis

20. L-2-aminoglutaramidic Acid

21. L-glutamic Acid Gamma-amide

22. L-glutamin

23. Glumin (amino Acid)

24. L-glutamic Acid 5-amide

25. (2s)-2-amino-4-carbamoylbutanoic Acid

26. Glutamine (van)

27. L-2-aminoglutaramic Acid

28. (2s)-2,5-diamino-5-oxopentanoic Acid

29. Fema No. 3684

30. Levoglutamida

31. Levoglutamidum

32. 2-aminoglutaramic Acid, L-

33. Glutamine, L-

34. Glutamine [usan]

35. Levoglutamidum [inn-latin]

36. Levoglutamida [inn-spanish]

37. Levoglutamina

38. Pentanoic Acid, 2,5-diamino-5-oxo-, (s)-

39. L-glutamid

40. 2,5-diamino-5-oxopentanoic Acid, (s)-

41. Ai3-24392

42. 26700-71-0

43. Nsc 27421

44. Brn 1723797

45. L-glutaminsaeure-5-amid

46. Mfcd00008044

47. Chembl930

48. Chebi:18050

49. D(-)-glutamine

50. 0rh81l854j

51. Nsc-27421

52. Gln

53. L-gln

54. L-glutamine-13c5

55. Glutamine (d)

56. Glutamine (l-glutamine)

57. Poly(glutamine)

58. Levoglutamide [dcf:inn]

59. Gamma-glutamine

60. 184161-19-1

61. (2s)-2,5-diamino-5-oxopentanoate

62. L-glutamine [jan]

63. Glutamine (l)

64. Einecs 200-292-1

65. L-glutamic Acid .gamma.-amide

66. Glutamine [usan:usp:inn]

67. Laevo-glutamine

68. Unii-0rh81l854j

69. Ccris 9428

70. 3h-l-glutamine

71. Hsdb 8165

72. 1wdn

73. (s)-glutamine

74. [3h]glutamine

75. Nutrestore (tn)

76. S(+)glutamine

77. Glutamine (usp)

78. [14c]glutamine

79. [3h]-glutamine

80. L-glutamine Powder

81. Cebrogen, Stimulina

82. L-glutamine,(s)

83. S(+)-glutamine

84. [14c]-glutamine

85. H-gln

86. Endari (tn)

87. Endari

88. L-alanyl-l-glutamide

89. Spectrum_000131

90. L-glutamine [jan]

91. Starbld0006818

92. Glutamine [inn]

93. Specplus_000380

94. Glutamine [mi]

95. L-glutamine (jp17)

96. L-glutamine, Homopolymer

97. Glutamine [inci]

98. L-glutamine-[13c5]

99. Spectrum2_001377

100. Spectrum3_001416

101. Spectrum4_001709

102. Spectrum5_000418

103. Glutamine [vandf]

104. L-glutamine, 98.5%

105. Bmse000038

106. Bmse001014

107. Glutamine [mart.]

108. L-glutamine [fcc]

109. Glutamine [usp-rs]

110. L-glutamine [fhfi]

111. Schembl7453

112. L-glutamine [vandf]

113. Lopac0_000549

114. Bspbio_003092

115. Gtpl723

116. Kbiogr_002038

117. Kbioss_000591

118. 4-04-00-03038 (beilstein Handbook Reference)

119. Divk1c_006476

120. Spectrum1500987

121. N-(2)-l-alanyl-l-glutamine

122. S(+)-glutamic Acid 5-amide

123. Spbio_001334

124. L-[3,4-3h(n)]glutamine

125. Levoglutamide [who-dd]

126. Gtpl4633

127. Gtpl4634

128. Glutamine [orange Book]

129. Dtxsid1023100

130. Schembl19240116

131. Schembl23124227

132. Bdbm18121

133. Kbio1_001420

134. Kbio2_000591

135. Kbio2_003159

136. Kbio2_005727

137. Kbio3_002312

138. L-glutamine, Cell Culture Grade

139. Glutamine [usp Monograph]

140. L-glutamine [orange Book]

141. Hms3261n19

142. Hms3264c03

143. Pharmakon1600-01300018

144. Pharmakon1600-01500987

145. (s)-2,5-diamino-5-oxopentanoate

146. Hy-n0390

147. Zinc1532526

148. (2s)-2-amino-4-carbamoylbutanoate

149. Tox21_500549

150. Ccg-38853

151. Nsc759628

152. Nsc760081

153. S1749

154. Akos015854078

155. (s)-2-amino-4-carbamoyl-butyric Acid

156. Am81759

157. Cs-1947

158. Db00130

159. Lp00549

160. Nsc-759628

161. Nsc-760081

162. Sdccgmls-0066691.p001

163. Sdccgsbi-0050532.p005

164. Ncgc00093936-01

165. Ncgc00093936-02

166. Ncgc00093936-03

167. Ncgc00093936-04

168. Ncgc00093936-05

169. Ncgc00093936-15

170. Ncgc00261234-01

171. (2s)-2,5-diamino-5-oxo-pentanoic Acid

172. As-11765

173. Bp-13284

174. Sbi-0050532.p003

175. L-glutamine, Bioultra, >=99.5% (nt)

176. Eu-0100549

177. G0063

178. L-glutamine, Saj Special Grade, >=99.0%

179. C00064

180. D00015

181. D70833

182. G 3126

183. M02960

184. Ab00173347-03

185. Ab00173347_04

186. L-glutamine, Reagentplus(r), >=99% (hplc)

187. L-glutamine, Vetec(tm) Reagent Grade, >=99%

188. 008g044

189. A831906

190. A937790

191. L-glutamine, Cell Culture Reagent (h-l-gln-oh)

192. Q181619

193. 7fba778c-d6b8-495c-bfe7-1cb8ec4abeab

194. J-521645

195. Q-100459

196. Brd-k83896451-001-01-8

197. F0001-1471

198. L-glutamine, Certified Reference Material, Tracecert(r)

199. Z1250208676

200. (s)-2,5-diamino-5-oxopentanoic Acid, L-glutamic Acid 5-amide

201. Glutamine, United States Pharmacopeia (usp) Reference Standard

202. L-glutamine, Gamma-irradiated, Bioxtra, Suitable For Cell Culture

203. L-glutamine, Pharmaceutical Secondary Standard; Certified Reference Material

204. L-glutamine Solution 200 Mm, 29.23 Mg/ml In Saline, Solution, Suitable For Cell Culture

205. L-glutamine Solution, 200 Mm, Hybri-max(tm), Sterile-filtered, Suitable For Hybridoma

206. L-glutamine Solution, 200 Mm, Solution, Sterile-filtered, Bioxtra, Suitable For Cell Culture

207. L-glutamine, Meets Usp Testing Specifications, Cell Culture Tested, 99.0-101.0%, From Non-animal Source

208. L-glutamine, Pharmagrade, Ajinomoto, Usp, Manufactured Under Appropriate Gmp Controls For Pharma Or Biopharmaceutical Production, Suitable For Cell Culture

2.4 Create Date
2004-09-16
3 Chemical and Physical Properties
Molecular Weight 146.14 g/mol
Molecular Formula C5H10N2O3
XLogP3-3.1
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count4
Rotatable Bond Count4
Exact Mass146.06914219 g/mol
Monoisotopic Mass146.06914219 g/mol
Topological Polar Surface Area106 Ų
Heavy Atom Count10
Formal Charge0
Complexity146
Isotope Atom Count0
Defined Atom Stereocenter Count1
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Drug and Medication Information
4.1 Drug Information
1 of 2  
Drug NameNutrestore
PubMed HealthL-glutamine (By mouth)
Drug ClassesAmino Acid Supplement, Gastrointestinal Agent
Drug LabelNutreStore (L-glutamine powder for oral solution) for oral administration is formulated as a white crystalline powder in a paper-foil-plastic laminate packet. Each packet of NutreStore contains 5 g of L-glutamine. The amino acid glutamine is also kno...
Active IngredientGlutamine
Dosage FormFor solution
RouteOral
Strength5gm/packet
Market StatusPrescription
CompanyEmmaus Medcl

2 of 2  
Drug NameNutrestore
PubMed HealthL-glutamine (By mouth)
Drug ClassesAmino Acid Supplement, Gastrointestinal Agent
Drug LabelNutreStore (L-glutamine powder for oral solution) for oral administration is formulated as a white crystalline powder in a paper-foil-plastic laminate packet. Each packet of NutreStore contains 5 g of L-glutamine. The amino acid glutamine is also kno...
Active IngredientGlutamine
Dosage FormFor solution
RouteOral
Strength5gm/packet
Market StatusPrescription
CompanyEmmaus Medcl

4.2 Therapeutic Uses

EXPL THER Glutamine depletion has negative effects on the functional integrity of the gut and leads to immunosuppression. Very low birth weight (VLBW) infants are susceptible to glutamine depletion, as enteral nutrition is limited in the first weeks of life. Enteral glutamine supplementation may have a positive effect on feeding tolerance, infectious morbidity and short-term outcome. The aim of the study was to determine the effect of enteral glutamine supplementation on plasma amino acid concentrations, reflecting one aspect of safety of enteral glutamine supplementation in VLBW infants. In a double-blind placebo-controlled randomized controlled trial, VLBW infants (gestational age <32 weeks or birth weight <1500 g) received enteral glutamine supplementation (0.3 g/kg per day) or isonitrogenous placebo supplementation (alanine) between day 3 and day 30 of life. Supplementation was added to breast milk or to preterm formula. Plasma amino acid concentrations were measured at four time points: before the start of the study and at days 7, 14 and 30 of life.Baseline patient and nutritional characteristics were not different in glutamine (n = 52) and control (n = 50) groups. Plasma concentrations of most essential and non-essential amino acids increased throughout the study period. There was no effect of enteral glutamine supplementation. In particular, the increase of plasma glutamine and glutamate concentrations was not different between the treatment groups (P = 0.49 and P = 0.34 respectively, day 30).Enteral glutamine supplementation in VLBW infants does not alter plasma concentrations of glutamine, glutamate or other amino acids. Enteral supplementation in a dose of 0.3 g/kg per day seems safe in VLBW infants.

van den Berg A et al; J Pediatr Gastroenterol Nutr. 41(1): 66-71(2005)


EXPL THER Critically ill patients have considerable oxidative stress. Glutamine and antioxidant supplementation may offer therapeutic benefit, although current data are conflicting.In this blinded 2-by-2 factorial trial, we randomly assigned 1223 critically ill adults in 40 intensive care units (ICUs) in Canada, the United States, and Europe who had multiorgan failure and were receiving mechanical ventilation to receive supplements of glutamine, antioxidants, both, or placebo. Supplements were started within 24 hours after admission to the ICU and were provided both intravenously and enterally. The primary outcome was 28-day mortality. Because of the interim-analysis plan, a P value of less than 0.044 at the final analysis was considered to indicate statistical significance. There was a trend toward increased mortality at 28 days among patients who received glutamine as compared with those who did not receive glutamine (32.4% vs. 27.2%; adjusted odds ratio, 1.28; 95% confidence interval [CI], 1.00 to 1.64; P=0.05). In-hospital mortality and mortality at 6 months were significantly higher among those who received glutamine than among those who did not. Glutamine had no effect on rates of organ failure or infectious complications. Antioxidants had no effect on 28-day mortality (30.8%, vs. 28.8% with no antioxidants; adjusted odds ratio, 1.09; 95% CI, 0.86 to 1.40; P=0.48) or any other secondary end point. There were no differences among the groups with respect to serious adverse events (P=0.83). Early provision of glutamine or antioxidants did not improve clinical outcomes, and glutamine was associated with an increase in mortality among critically ill patients with multiorgan failure.

Heyland D et al; N Engl J Med. 368 (16): 1489-97 (2013)


NutreStore (L-glutamine powder for oral solution) is indicated for the treatment of Short Bowel Syndrome (SBS) in patients receiving specialized nutritional support when used in conjunction with a recombinant human growth hormone that is approved for this indication. /Included in US product label/

US Natl Inst Health; DailyMed. Current Medication Information for NUTRESTORE (glutamine) powder, for solution (July 2014). Available from, as of August 20, 2014: https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=cd3fb572-c5b1-43da-aea2-31208985f544


4.3 Drug Warning

The safety and effectiveness of L-glutamine in pediatric patients have not been established.

US Natl Inst Health; DailyMed. Current Medication Information for NUTRESTORE (glutamine) powder, for solution (July 2014). Available from, as of August 20, 2014: https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=cd3fb572-c5b1-43da-aea2-31208985f544


It is not known whether L-glutamine is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when L-glutamine is administered to a nursing woman.

US Natl Inst Health; DailyMed. Current Medication Information for NUTRESTORE (glutamine) powder, for solution (July 2014). Available from, as of August 20, 2014: https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=cd3fb572-c5b1-43da-aea2-31208985f544


Glutamine is metabolized to glutamate and ammonia, which may increase in patients with hepatic dysfunction. Therefore, routine monitoring of renal and hepatic function is recommended in patients receiving intravenous parenteral nutrition (IPN) and NutreStore, particularly in those with renal or hepatic impairment.

US Natl Inst Health; DailyMed. Current Medication Information for NUTRESTORE (glutamine) powder, for solution (July 2014). Available from, as of August 20, 2014: https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=cd3fb572-c5b1-43da-aea2-31208985f544


FDA Pregnancy Risk Category: C /RISK CANNOT BE RULED OUT. Adequate, well controlled human studies are lacking, and animal studies have shown risk to the fetus or are lacking as well. There is a chance of fetal harm if the drug is given during pregnancy; but the potential benefits may outweigh the potential risk./

US Natl Inst Health; DailyMed. Current Medication Information for NUTRESTORE (glutamine) powder, for solution (July 2014). Available from, as of August 20, 2014: https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=cd3fb572-c5b1-43da-aea2-31208985f544


For more Drug Warnings (Complete) data for Glutamine (7 total), please visit the HSDB record page.


4.4 Drug Indication

Used for nutritional supplementation, also for treating dietary shortage or imbalance. Used to reduce the acute complications of sickle cell disease in adult and pediatric patients 5 years of age and older.


FDA Label


5 Pharmacology and Biochemistry
5.1 Pharmacology

Like other amino acids, glutamine is biochemically important as a constituent of proteins. Glutamine is also crucial in nitrogen metabolism. Ammonia (formed by nitrogen fixation) is assimilated into organic compounds by converting glutamic acid to glutamine. The enzyme which accomplishes this is called glutamine synthetase. Glutamine can then be used as a nitrogen donor in the biosynthesis of many compounds, including other amino acids, purines, and pyrimidines. L-glutamine improves nicotinamide adenine dinucleotide (NAD) redox potential.


5.2 FDA Pharmacological Classification
5.2.1 Active Moiety
GLUTAMINE
5.2.2 FDA UNII
0RH81L854J
5.2.3 Pharmacological Classes
Amino Acids [CS]; Amino Acid [EPC]
5.3 ATC Code

A - Alimentary tract and metabolism

A16 - Other alimentary tract and metabolism products

A16A - Other alimentary tract and metabolism products

A16AA - Amino acids and derivatives

A16AA03 - Glutamine


5.4 Absorption, Distribution and Excretion

Absorption

Absorption is efficient and occurs by an active transport mechanism. Tmax is 30 minutes after a single dose. Absorption kinetics following multiple doses has not yet been determined.


Route of Elimination

Primarily eliminated by metabolism. While L-glutamine is filtered though the glomerulus, nearly all is reabsorbed by renal tubules.


Volume of Distribution

Volume of distribution is 200 mL/kg after intravenous bolus dose.


After an intravenous bolus dose in three subjects, the volume of distribution was estimated to be approximately 200 mL/kg.

US Natl Inst Health; DailyMed. Current Medication Information for NUTRESTORE (glutamine) powder, for solution (July 2014). Available from, as of August 20, 2014: https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=cd3fb572-c5b1-43da-aea2-31208985f544


Following single dose oral administration of glutamine at 0.1 g/kg to six subjects, mean peak blood glutamine concentration was 1028uM (or 150 mcg/mL) occurring approximately 30 minutes after administration. The pharmacokinetics following multiple oral doses have not been adequately characterized.

US Natl Inst Health; DailyMed. Current Medication Information for NUTRESTORE (glutamine) powder, for solution (July 2014). Available from, as of August 20, 2014: https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=cd3fb572-c5b1-43da-aea2-31208985f544


Metabolism is the major route of elimination for glutamine. Although glutamine is eliminated by glomerular filtration, it is almost completely reabsorbed by the renal tubules.

US Natl Inst Health; DailyMed. Current Medication Information for NUTRESTORE (glutamine) powder, for solution (July 2014). Available from, as of August 20, 2014: https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=cd3fb572-c5b1-43da-aea2-31208985f544


5.5 Metabolism/Metabolites

Exogenous L-glutamine likely follows the same metabolic pathways as endogenous L-glutamine which is involved in the formation of glutamate, proteins, nucleotides, and amino acid sugars.


Glutamine plays an important role in nitrogen homeostasis and intestinal substrate supply. It has been suggested that glutamine is a precursor for arginine through an intestinal-renal pathway involving inter-organ transport of citrulline. The importance of intestinal glutamine metabolism for endogenous arginine synthesis in humans, however, has remained unaddressed. The aim of this study was to investigate the intestinal conversion of glutamine to citrulline and the effect of the liver on splanchnic citrulline metabolism in humans. Eight patients undergoing upper gastrointestinal surgery received a primed continuous intravenous infusion of [2-(15)N]glutamine and [ureido-(13)C-(2)H(2)]citrulline. Arterial, portal venous and hepatic venous blood were sampled and portal and hepatic blood flows were measured. Organ specific amino acid uptake (disposal), production and net balance, as well as whole body rates of plasma appearance were calculated according to established methods. The intestines consumed glutamine at a rate that was dependent on glutamine supply. Approximately 13% of glutamine taken up by the intestines was converted to citrulline. Quantitatively glutamine was the only important precursor for intestinal citrulline release. Both glutamine and citrulline were consumed and produced by the liver, but net hepatic flux of both amino acids was not significantly different from zero. Plasma glutamine was the precursor of 80% of plasma citrulline and plasma citrulline in turn was the precursor of 10% of plasma arginine. In conclusion, glutamine is an important precursor for the synthesis of arginine after intestinal conversion to citrulline in humans.

PMID:17347276 Full text: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2075174 van de Poll MC et al; J Physiol 581 (Pt 2): 819-27 (2007)


Endogenous glutamine participates in various metabolic activities, including the formation of glutamate, and synthesis of proteins, nucleotides, and amino sugars. Exogenous glutamine is anticipated to undergo similar metabolism.

US Natl Inst Health; DailyMed. Current Medication Information for NUTRESTORE (glutamine) powder, for solution (July 2014). Available from, as of August 20, 2014: https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=cd3fb572-c5b1-43da-aea2-31208985f544


5.6 Biological Half-Life

The half life of elimination is 1 h.


After an IV bolus dose in three subjects, the terminal half-life of glutamine was approximately 1 hour.

US Natl Inst Health; DailyMed. Current Medication Information for NUTRESTORE (glutamine) powder, for solution (July 2014). Available from, as of August 20, 2014: https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=cd3fb572-c5b1-43da-aea2-31208985f544


5.7 Mechanism of Action

Supplemental L-glutamine's possible immunomodulatory role may be accounted for in a number of ways. L-glutamine appears to play a major role in protecting the integrity of the gastrointestinal tract and, in particular, the large intestine. During catabolic states, the integrity of the intestinal mucosa may be compromised with consequent increased intestinal permeability and translocation of Gram-negative bacteria from the large intestine into the body. The demand for L-glutamine by the intestine, as well as by cells such as lymphocytes, appears to be much greater than that supplied by skeletal muscle, the major storage tissue for L-glutamine. L-glutamine is the preferred respiratory fuel for enterocytes, colonocytes and lymphocytes. Therefore, supplying supplemental L-glutamine under these conditions may do a number of things. For one, it may reverse the catabolic state by sparing skeletal muscle L-glutamine. It also may inhibit translocation of Gram-negative bacteria from the large intestine. L-glutamine helps maintain secretory IgA, which functions primarily by preventing the attachment of bacteria to mucosal cells. L-glutamine appears to be required to support the proliferation of mitogen-stimulated lymphocytes, as well as the production of interleukin-2 (IL-2) and interferon-gamma (IFN-gamma). It is also required for the maintenance of lymphokine-activated killer cells (LAK). L-glutamine can enhance phagocytosis by neutrophils and monocytes. It can lead to an increased synthesis of glutathione in the intestine, which may also play a role in maintaining the integrity of the intestinal mucosa by ameliorating oxidative stress. The exact mechanism of the possible immunomodulatory action of supplemental L-glutamine, however, remains unclear. It is conceivable that the major effect of L-glutamine occurs at the level of the intestine. Perhaps enteral L-glutamine acts directly on intestine-associated lymphoid tissue and stimulates overall immune function by that mechanism, without passing beyond the splanchnic bed. The exact mechanism of L-glutamine's effect on NAD redox potential is unknown but is thought to involve increased amounts of reduced glutathione made available by glutamine supplementation. This improvement in redox potential reduces the amount of oxidative damage which sickle red blood cells are more susceptible to. The reduction in cellular damage is thought to reduce chronic hemolysis and vaso-occlusive events.


L-glutamine has important functions in regulation of gastrointestinal cell growth, function, and regeneration. Under normal conditions, glutamine concentration is maintained in the body by dietary intake and synthesis from endogenous glutamate. Data from clinical studies indicate that the role of and nutritional requirements for glutamine during catabolic illness, trauma, and infection may differ significantly from the role of and nutritional requirements for glutamine in healthy individuals. Glutamine concentrations decrease and tissue glutamine metabolism increases during many catabolic disease states, and thus glutamine is often considered a "conditionally essential" amino acid.

US Natl Inst Health; DailyMed. Current Medication Information for NUTRESTORE (glutamine) powder, for solution (July 2014). Available from, as of August 20, 2014: https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=cd3fb572-c5b1-43da-aea2-31208985f544