1. Signaling Pathways
  2. GPCR/G Protein
    Neuronal Signaling
  3. Opioid Receptor
  4. Opioid Receptor Isoform
  5. Opioid Receptor Antagonist

Opioid Receptor Antagonist

Opioid Receptor Antagonists (71):

Cat. No. Product Name Effect Purity
  • HY-17417
    Naloxone hydrochloride
    Antagonist 99.96%
    Naloxone hydrochloride is an antagonist of Opioid receptor. Naloxone hydrochloride alleviates opioid-overdose-induced respiratory depression. Naloxone hydrochloride may cause pulmonary edema and cardiac arrhythmias.
  • HY-10487
    JDTic dihydrochloride
    Antagonist 98.03%
    JDTic (dihydrochloride) is a potent antagonist of kappa-opioid receptors (KOR), blocking the κ-agonist U50, 488-induced antinociception.
  • HY-17417A
    Naloxone
    Antagonist 99.71%
    Naloxone is an antagonist of Opioid receptor. Naloxone alleviates opioid-overdose-induced respiratory depression. Naloxone may cause pulmonary edema and cardiac arrhythmias.
  • HY-101302
    Naltriben mesylate
    Antagonist 99.65%
    Naltriben mesylate is a potent δ2-opioid receptor antagonist and a TRPM7 activator. Naltriben mesylate shows Ki values of 0.013 nM, 19 nM and 152 nM for δ, μ and κ receptors, respectively. Naltriben mesylate enhances glioblastoma cell migration and invasion. Naltriben mesylate can be used in research into neurological diseases and cancer.
  • HY-76711
    Naltrexone
    Antagonist 99.94%
    Naltrexone is an antagonist of Opioid receptor. Naltrexone inhibits cell proliferation in vivo. Naltrexone reduces tumor growth by interfering with cell signalling and modifying the immune system.
  • HY-117040
    nor-Binaltorphimine
    Antagonist 98.70%
    nor-Binaltorphimine is a selective antagonist of kappa-opioid receptor. nor-Binaltorphimine has a long-lasting effect in vivo.
  • HY-A0118A
    Naloxegol oxalate
    Antagonist 99.91%
    Naloxegol oxalate (NKTR-118 oxalate; AZ-13337019 oxalate) is a μ-opioid-receptor antagonist. Naloxegol oxalate inhibits opioid binding in μ-opioid receptors in the gastrointestinal tract and effective for alleviating opioid-induced constipation.
  • HY-13243
    Alvimopan
    Antagonist 98.66%
    Alvimopan (ADL 8-2698) is a potent, selective, orally active and reversible μ-opioid receptor antagonist, with an IC50 of 1.7 nM. Alvimopan has selectivity for μ-opioid receptor (Ki=0.47 nM) over κ- and δ-opioid receptors (Kis=100, 12 nM, respectively). Alvimopan can be used for the research of postoperative ileus.
  • HY-137279
    Naloxone methiodide
    Antagonist 99.7%
    Naloxone methiodide is a peripherally restricted, nonselective, and competitive opioid receptor antagonist. Naloxone methiodide does not penetrate the blood-brain barrier.
  • HY-101376
    (+)-N-Allylnormetazocine hydrochloride
    Antagonist 99.0%
    (+)-N-Allylnormetazocine ((+)-SKF 10047) hydrochloride is a benzomorphan opioid with psychotomi metic effects. (+)-N-Allylnormetazocine hydrochloride is an opioid receptor antagonist with Ki values of 300 nM and 27 μM for σ1 and σ2 opioid receptors, respectively. (+)-N-Allylnormetazocine hydrochloride can be used for the research of neurological disease.
  • HY-123689
    Samidorphan
    Antagonist 99.04%
    Samidorphan (ALKS-33) is an orally active opioid system modulator that has a high affinity for binding with μ‐opioid, κ‐opioid, and δ‐opioid receptors. Samidorphan acts as an antagonist at μ‐opioid receptors and acts as a partial agonist at k-opioid and δ‐opioid receptors. Samidorphan primarily acts as an opioid receptor antagonist in vivo. Samidorphan can improve the behavior of depressed animals.
  • HY-15708
    LY2795050
    Antagonist 98.12%
    LY2795050 is a short-acting selective κ(kappa)-opioid receptor (KOR) antagonist. LY2795050 has high affinity for the KOR with Ki value of 0.72 nM. LY2795050 can be used for the research of central nervous system dysfunction.
  • HY-114452A
    LY2940094 tartrate
    Antagonist 99.66%
    LY2940094 (BTRX-246040) tartrate is a potent, brain penetrant, selective and orally available N/OFQ peptide (NOP) receptor antagonist with high affinity (Ki=0.105 nM) and antagonist potency (Kb=0.166 nM). LY2940094 tartrate reduces Ethanol self-administration and Ethanol seeking in animal models.
  • HY-16765A
    Axelopran sulfate
    Antagonist 99.14%
    Axelopran sulfate is an opioid receptor antagonist with pKi values of 9.8, 8.8 and 9.9 for human recombinant μ and δ receptors and guinea pig κ receptor, respectively.
  • HY-107749
    ML 190
    Antagonist 99.60%
    ML 190 is a selective κ opioid receptor (KOR) antagonist with an IC50 of 120 nM and an EC50 of 129 nM, respectively.
  • HY-108229S
    6β-Naltrexol-d3
    Antagonist 99.72%
    6β-Naltrexol-d3 (6β-Hydroxynaltrexone-d3) is deuterium labeled 6β-Naltrexol. 6β-Naltrexol (6β-Hydroxynaltrexone), the primary metabolite of Naltrexone, is a peripherally selective opioid antagonist. 6β-Naltrexol selectively inhibits gastrointestinal opioid effects in human subjects and inhibits Morphine-induced slowing of gastrointestinal transit.
  • HY-118416
    BMS-986124
    Antagonist 99.00%
    BMS-986124 is a μ-opioid receptor silent allosteric modulator (μ-SAMs). BMS-986124 antagonizes positive allosteric modulator effect of BMS-986122 (µ-OR PAM).
  • HY-19627
    Naldemedine
    Antagonist
    Naldemedine (S-297995) is an orally active μ-opioid receptor antagonist (PAMORA). Naldemedine shows potent binding affinities (Ki=0.34, 0.43, 0.94 nM, respectively) and antagonist activities (IC50=25.57, 7.09, 16.1 nM, respectively) for recombinant human μ-, δ-, and κ- opioid receptors. Naldemedine can be used in opioid-induced constipation (OIC) research. Naldemedine is predicted to bind to 3CLpro encoded by SARS-CoV2 genome.
  • HY-A0118
    Naloxegol
    Antagonist
    Naloxegol (NKTR-118; AZ-13337019) is a μ-opioid-receptor antagonist. Naloxegol inhibits opioid binding in μ-opioid receptors in the gastrointestinal tract and effective for alleviating opioid-induced constipation.
  • HY-107750
    Cyprodime
    Antagonist
    Cyprodime is a selective μ opioid receptor (MOR) antagonist with Kis of 5.4, 244.6, and 2187 nM for μ, δ, and κ, respectively.