Quick Answer: Which Drug Is A Serotonin Antagonist?

Serotonin Receptor Antagonists

Drug Drug Description
Granisetron A 5HT3 antagonist used to treat nausea and vomiting in cancer therapy and postoperatively.
Ondansetron A serotonin 5-HT3 receptor antagonist used to prevent nausea and vomiting in cancer chemotherapy and postoperatively.


What is an example of a serotonin antagonist?

Common brands of serotonin antagonist and reuptake inhibitors include trazodone. SARIs are used mainly to treat major depressive disorder in adults. They are sometimes offered for the treatment of insomnia for patients who dislike the dizzying effects of other sleep medications. SARIs are non-narcotic.

Are antidepressants serotonin antagonists?

Antidepressants are functional antagonists at the serotonin type 3 (5-HT3) receptor. Mol Psychiatry. 2003 Nov;8(12):994-1007. doi: 10.1038/sj.

Which drugs are dopamine antagonists?

Dopamine antagonist drugs include:

  • Thorazine or Largactil (chlorpromazine)
  • Reglan (metoclopramide)
  • Phenergan (promethazine)
  • Invenga (paliperidone)
  • Risperdal (risperidone)
  • Seroquel (quetiapine)
  • Clozaril (clozepine)

Are SSRIs agonist or antagonist drugs?

Fluoxetine and all other SSRIs are 5 -HT2B Agonists – Importance for their Therapeutic Effects.

What do serotonin antagonists do?

Serotonin antagonist and reuptake inhibitors (SARIs) are a class of drugs used mainly as antidepressants, but also as anxiolytics and hypnotics. They act by antagonizing serotonin receptors such as 5-HT2A and inhibiting the reuptake of serotonin, norepinephrine, and/or dopamine.

Is Prozac an antagonist?

Fluoxetine is an antagonist at 5HT2C receptors, this has been proposed as a potential mechanism for its activating properties.

Is Paxil an agonist or antagonist?

The SSRI paroxetine is among the most widely-prescribed and therapeutically effective SERT antagonists approved to treat a wide range of neuropsychiatric ailments, including depression, OCD, panic disorder, social phobia, posttraumatic stress disorder, generalized anxiety disorder, and premenstrual dysphoric disorder22

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What is an antagonist drug?

Listen to pronunciation. (an-TA-guh-nist) In medicine, a substance that stops the action or effect of another substance. For example, a drug that blocks the stimulating effect of estrogen on a tumor cell is called an estrogen receptor antagonist.

What are two of the major classes of antidepressant drugs?

The major classes of antidepressant drugs include the tricyclic and related antidepressants, selective serotonin re-uptake inhibitors (SSRIs), the selective serotonin and norepinephrine re-uptake inhibitors (SNRIs) and the monoamine oxidase inhibitors (MAOIs).

What drugs are MAOI inhibitor?

The Food and Drug Administration (FDA) has approved these MAOIs to treat depression:

  • Isocarboxazid (Marplan)
  • Phenelzine (Nardil)
  • Selegiline (Emsam)
  • Tranylcypromine (Parnate)

Is serotonin an antagonist or agonist?

Serotonin agonists (for the acute treatment of attacks) and antagonists (for prophylactic treatment) are the most widely used drugs to treat migraine. However, their effectiveness is not complete and their use is limited by side effects.

What drugs release serotonin in the brain?

Examples of SSRIs include fluoxetine (Prozac) and sertraline (Zoloft). These drugs are effective for increasing serotonin and can treat symptoms of depression.

Is serotonin a dopamine antagonist?

Serotonin-dopamine activity modulators (SDAMs) act as a partial agonist at 5-HT1A and dopamine D2 receptors at similar potency, and as an antagonist at 5-HT2A and noradrenaline alpha1B/2C receptors.