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Bromocriptine, originally marketed as Parlodel and subsequently under many brand names, is an ergoline derivative and dopamine agonist that is used in the treatment of pituitary tumors, Parkinson's disease, hyperprolactinaemia, neuroleptic malignant syndrome, and, as an adjunct, type 2 diabetes.
It was patented in 1968 and approved for medical use in 1975.




Medical uses


Bromocriptine is used to treat acromegaly and conditions associated with hyperprolactinemia like amenorrhea, infertility, hypogonadism, and prolactin-secreting adenomas. It is also used to prevent ovarian hyperstimulation syndrome and to treat Parkinson's disease.
Since the late 1980s it has been used, off-label, to reduce the symptoms of cocaine withdrawal but the evidence for this use is poor. Bromocriptine has been successfully used in cases of galactorrhea precipitated by dopamine antagonists like risperidone.
A quick-release formulation of bromocriptine, Cycloset, is also used to treat type 2 diabetes. When administered within 2 hours of awakening, it increases hypothalamic dopamine level. That results to a significant weight loss as well as decreases in blood glucose levels, hepatic glucose production, and insulin resistance. It therefore acts as an adjunct to diet and exercise to improve glycemic control and cardiovascular risk.




Side effects


Most frequent side effects are nausea, orthostatic hypotension, headaches, and vomiting through stimulation of the brainstem vomiting centre. Vasospasms with serious consequences such as myocardial infarction and stroke that have been reported in connection with the puerperium, appear to be extremely rare events. Peripheral vasospasm (of the fingers or toes) can cause Raynaud's phenomenon.
Bromocriptine use has been anecdotally associated with causing or worsening psychotic symptoms (its mechanism is in opposition of most antipsychotics, whose mechanisms generally block dopamine receptors). It should be understood, however, that the greater affinity bromocriptine and many similar antiparkinson's drugs have for the D2S receptor form (considered to be mostly present at inhibitory D2 autoreceptor locatations) relative to the D2L form, sufficiently low partial agonist activity (ie where a molecule binding to a receptor induces limited effects while preventing a stronger ligand like dopamine from binding), and, possibly, the functional selectivity of a particular drug may generate antidopaminergic effects that are more similar than oppositional in nature to antipsychotics.
Pulmonary fibrosis has been reported when bromocriptine was used in high doses for the treatment of Parkinson's disease.
Use to suppress milk production after childbirth was reviewed in 2014 and it was concluded that in this context a causal association with serious cardiovascular, neurological or psychiatric events could not be excluded with an overall incidence estimated to range between 0.005% and 0.04%. Additional safety precautions and stricter prescribing rules were suggested based on the data. It is a bile salt export pump inhibitor.
After long-term use of dopamine agonists, a withdrawal syndrome may occur during dose reduction or discontinuation with the following possible side effects: anxiety, panic attacks, dysphoria, depression, agitation, irritability, suicidal ideation, fatigue, orthostatic hypotension, nausea, vomiting, diaphoresis, generalized pain, and drug cravings. For some individuals, these withdrawal symptoms are short-lived and they make a full recovery, for others a protracted withdrawal syndrome may occur with withdrawal symptoms persisting for months or years.




Pharmacology






= Pharmacodynamics

=

Bromocriptine is a partial agonist of the dopamine D2 receptor. It also interacts with other dopamine receptors and with various serotonin and adrenergic receptors. Bromocriptine has additionally been found to inhibit the release of glutamate by reversing the GLT1 glutamate transporter.
Despite acting as a serotonin 5-HT2A receptor agonist, bromocriptine is described as non-hallucinogenic.
As a silent antagonist of the serotonin 5-HT2B receptor, bromocriptine has been said not to pose a risk of cardiac valvulopathy. This is in contrast to other ergolines acting instead as 5-HT2B receptor agonists such as cabergoline and pergolide but is similar to lisuride which likewise acts as a 5-HT2B receptor antagonist. However, in other research, bromocriptine has subsequently been found to be a partial agonist of the serotonin 5-HT2B receptor and has been associated with cardiac valvulopathy and related complications. In any case, bromocriptine seems to have lower risk than certain other drugs.




Chemistry


Like all ergopeptides, bromocriptine is a cyclol; two peptide groups of its tripeptide moiety are crosslinked, forming the >N-C(OH)< juncture between the two rings with the amide functionality.
Bromocriptine is a semisynthetic derivative of a natural ergot alkaloid, ergocryptine (a derivative of lysergic acid), which is synthesized by bromination of ergocryptine using N-bromosuccinimide.




History


Bromocriptine was discovered by scientists at Sandoz in 1965 and was first published in 1968; it was first marketed under the brand name Parlodel.
A quick-release formulation of bromocriptine was approved by the FDA in 2009.




Society and culture






= Brand names

=
As of July 2017, bromocriptine was marketed under many brand names worldwide, including Abergin, Barlolin, Brameston, Brocriptin, Brom, Broma-Del, Bromergocryptine, Bromergon, Bromicon, Bromocorn, Bromocriptin, Bromocriptina, Bromocriptine, Bromocriptine mesilate, Bromocriptine mesylate, Bromocriptine methanesulfonate, Bromocriptini mesilas, Bromocriptinmesilat, Bromodel, Bromokriptin, Bromolac, Bromotine, Bromtine, Brotin, Butin, Corpadel, Cripsa, Criptine, Criten, Cycloset, Degala, Demil, Deparo, Deprolac, Diacriptin, Dopagon, Erenant, Grifocriptina, Gynodel, kirim, Kriptonal, Lactodel, Medocriptine, Melen, Padoparine, Palolactin, Parlodel, Pravidel, Proctinal, Ronalin, Semi-Brom, Serocriptin, Serocryptin, Suplac, Syntocriptine, Umprel, Unew, Updopa, Upnol B, and Volbro.
As of July 2017 it was also marketed as a combination drug with metformin as Diacriptin-M, and as a veterinary drug under the brand Pseudogravin.




References






External links


MedlinePlus DrugInfo medmaster-a682079

Kata Kunci Pencarian:

• Gigantomastia
• Bromocriptine
• Dopamine agonist
• Prolactinoma
• Hyperprolactinaemia
• Neuroleptic malignant syndrome
• Cabergoline
• Acromegaly
• Octreotide
• Breast hypertrophy
• Prolactin

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• Bromocriptine Uses, Side Effects & Warnings - Drugs.com
• Bromocriptine - Wikipedia
• Bromocriptine - StatPearls - NCBI Bookshelf - National Center for ...
• Bromocriptine (oral route) - Mayo Clinic
• Bromocriptine: Side Effects, Dosage, Uses, and More - Healthline
• Bromocriptine - Uses, Side Effects, and More - WebMD
• Bromocriptine: MedlinePlus Drug Information
• Bromocriptine (Cycloset®): Uses & Side Effects - Cleveland Clinic
• Bromocriptine (Parlodel): Indications, Side Effects, Warnings - Drugs.com
• Bromocriptine: Package Insert / Prescribing Info - Drugs.com

Bromocriptine Uses, Side Effects & Warnings - Drugs.com

Mar 21, 2024 · Bromocriptine: side effects, dosage, interactions, FAQs, reviews. Used for: acromegaly, hyperprolactinemia, parkinson's disease, tardive dyskinesia, type 2 diabetes

Bromocriptine - Wikipedia

Bromocriptine, originally marketed as Parlodel and subsequently under many brand names, [1] is an ergoline derivative and dopamine agonist that is used in the treatment of pituitary tumors, Parkinson's disease, hyperprolactinaemia, neuroleptic malignant syndrome, and, as an adjunct, type 2 diabetes.

Bromocriptine - StatPearls - NCBI Bookshelf - National Center for ...

May 28, 2024 · Bromocriptine is an ergot alkaloid derivative in the dopamine D2 agonist class of drugs used to manage various conditions, including type 2 diabetes, Parkinson disease, acromegaly, and pituitary prolactinomas. FDA-Approved Indications.

Bromocriptine (oral route) - Mayo Clinic

Bromocriptine is used to treat certain menstrual problems (eg, amenorrhea) in women and stops milk production in some men and women who have abnormal milk leakage. It is also used to treat infertility in both men and women that occurs because the body is making too much prolactin.

Bromocriptine: Side Effects, Dosage, Uses, and More - Healthline

Jun 30, 2022 · Bromocriptine oral tablet is a prescription drug. Its generic and its brand-name version Parlodel treat Parkinson’s disease and some hormone-related conditions.

Bromocriptine - Uses, Side Effects, and More - WebMD

Oct 27, 2024 · Overview: Bromocriptine is used for type 2 diabetes, problems due to high prolactin levels, acromegaly, and Parkinson's disease. The most common side effects are nausea, vomiting, dizziness, and...

Bromocriptine: MedlinePlus Drug Information

Bromocriptine is in a class of medications called dopamine receptor agonists. It treats hyperprolactinemia by decreasing the amount of prolactin in the body. It treats acromegaly by decreasing the amount of growth hormone in the body.

Bromocriptine (Cycloset®): Uses & Side Effects - Cleveland Clinic

Bromocriptine is a medication that treats type 2 diabetes by decreasing your blood sugar. The brand name of this medication is Cycloset®. This medication comes in a tablet form that you can take by mouth with a glass of water as directed.

Bromocriptine (Parlodel): Indications, Side Effects, Warnings - Drugs.com

Jan 6, 2024 · Easy-to-read patient leaflet for Bromocriptine (Parlodel). Includes indications, proper use, special instructions, precautions, and possible side effects. Skip to main content

Bromocriptine: Package Insert / Prescribing Info - Drugs.com

Oct 29, 2024 · Bromocriptine mesylate is a nonhormonal, nonestrogenic agent that inhibits the secretion of prolactin in humans, with little or no effect on other pituitary hormones, except in patients with acromegaly, where it lowers elevated blood …