Lortalamine ball-and-stick model.png
Clinical data
Routes of
ATC code
  • None
Pharmacokinetic data
Elimination half-life5 hours
ExcretionRenal (98%)
  • 8-chloro-1,2,3,4,10,10a-hexahydro-2-methyl-4a,10-(iminoethano)-4aH-[1]-benzopyrano[3,2-c]-pyridin-12-one
CAS Number
PubChem CID
CompTox Dashboard (EPA)
Chemical and physical data
Molar mass292.76 g·mol−1
3D model (JSmol)
  • Clc1ccc2O[C@]34NC(=O)C[C@@H](c2c1)[C@H]4CN(C)CC3

Lortalamine (LM-1404) is an antidepressant which was synthesized in the early 1980s.[1][2] It acts as a potent and highly selective norepinephrine reuptake inhibitor.[3][4] Lortalamine was under development for clinical use but was shelved, likely due to the finding that it produced ocular toxicity in animals.[5][6] It has been used to label the norepinephrine transporter in positron emission tomography studies.[4][7][8]

See also


  1. ^ David J. Triggle (1997). Dictionary of pharmacological agents. London: Chapman & Hall. ISBN 0-412-46630-9.
  2. ^ Belleville M, Grand M, Briet P (1981). "Plasma levels, elimination and metabolic fate of 4a-amino-8-chloro-2-methyl-1,2,3,4,4a,10a-hexahydro-10H-benzopyrano[3,2-c]pyridin-10-ylacetic acid lactam, a new antidepressive agent, in rats and dogs". Drug Metabolism and Disposition. 9 (3): 233–9. PMID 6113932.
  3. ^ Depin JC, Betbeder-Matibet A, Bonhomme Y, Muller AJ, Berthelon JJ (1985). "Pharmacology of lortalamine, a new potent non-tricyclic antidepressant". Arzneimittel-Forschung. 35 (11): 1655–62. PMID 4091869.
  4. ^ a b Lin KS, Ding YS (August 2005). "Synthesis and C-11 labeling of three potent norepinephrine transporter selective ligands ((R)-nisoxetine, lortalamine, and oxaprotiline) for comparative PET studies in baboons". Bioorganic & Medicinal Chemistry. 13 (15): 4658–66. doi:10.1016/j.bmc.2005.04.062. PMID 15914010.
  5. ^ Elsom LF, Biggs SR, Chasseaud LF, Hawkins DR, Pulsford J, Darragh A (1985). "Metabolism of the anti-depressant lortalamine". European Journal of Drug Metabolism and Pharmacokinetics. 10 (3): 209–15. doi:10.1007/bf03189744. PMID 4085522. S2CID 2196891.
  6. ^ Mally C, Thiebault JJ (1990). "Ocular toxicity in beagle dogs with lortalamine, a non tricyclic antidepressant compound". Drug and Chemical Toxicology. 13 (4): 309–23. doi:10.3109/01480549009032289. PMID 2279460.
  7. ^ Ding YS, Lin KS, Logan J, Benveniste H, Carter P (July 2005). "Comparative evaluation of positron emission tomography radiotracers for imaging the norepinephrine transporter: (S,S) and (R,R) enantiomers of reboxetine analogs ([11C]methylreboxetine, 3-Cl-[11C]methylreboxetine and [18F]fluororeboxetine), (R)-[11C]nisoxetine, [11C]oxaprotiline and [11C]lortalamine". Journal of Neurochemistry. 94 (2): 337–51. doi:10.1111/j.1471-4159.2005.03202.x. PMID 15998285. S2CID 25110597.
  8. ^ Ding YS, Lin KS, Logan J (2006). "PET imaging of norepinephrine transporters". Current Pharmaceutical Design. 12 (30): 3831–45. doi:10.2174/138161206778559687. PMID 17073682.