General
Preferred name
HELIUM
Synonyms
E939 ()
INS NO.939 ()
INS-939 ()
Helium-4 ()
E-939 ()
P&D ID
PD009020
CAS
7440-59-7
71086-78-7
14762-55-1
494798-31-1
Tags
drug
inorganic
Approved by
FDA
Drug Status
approved
vet_approved
investigational
Max Phase
4.0
Drug indication
Gases, Diluent for
First approval
2015
Structure
Probe scores
P&D probe-likeness score
[[ v.score ]]%
Structure formats
[[ format ]]
[[ compound[format === 'MOL' ? 'molblock' : format.toLowerCase()] ]]
Description
(extracted from source data)
MOA Due to its lower density, helium achieves more effective flow of gas due to lowered resistance to gas flow within the airways and reduces the work of breathing by decreasing the pressure gradient needed to achieve a turbulent flow [A19136]. Helium has a higher diffusion coefficient for carbon dioxide relative to oxygen thus promotes exhalation of trapped carbon dioxide. This reduces hypercapnia and normalizes pH. ; Helium increases the coronary collateral circulation and enhances the vasodilatory effects of inhaled nitric oxide on pulmonary vessels. It is suggested to possess neuroprotective properties. Cardioprotective effects against ischemia are mediated through early and late preconditioning by exposing the myocardial tissues to short ischemic episodes. Studies show that helium is associated with activation of pro-survival signalling kinases and inhibition of the opening of mitochondrial permeability transition pore (mPTP).
Compound Sets
7
ChEMBL Approved Drugs
CHEMBL1796997
ChEMBL Drugs
CHEMBL1796997
DrugBank
DB09155
DrugBank Approved Drugs
DB09155
DrugCentral
4262
DrugCentral Approved Drugs
4262
NCATS Inxight Approved Drugs
206GF3GB41
External IDs
27
Properties
(calculated by RDKit )
Molecular Weight
4.0
Hydrogen Bond Acceptors
0
Hydrogen Bond Donors
0
Rotatable Bonds
0
Ring Count
0
Aromatic Ring Count
0
cLogP
0.0
TPSA
0.0
Fraction CSP3
0.0
Chiral centers
0.0
Largest ring
0.0
QED
0.34
QED
0.34
Structural alerts
0
No structural alerts detected
Custom attributes
(extracted from source data)
Source data