Fibrotic disorders can have an insidious onset and patients should be monitored for manifestations of progressive fibrosis.
Therefore, during treatment, attention should be paid to the signs and symptoms of: Pleuro-pulmonary disease such as dyspnea, shortness of breath, persistent cough or chest pain. Cases of valvular and pericardial fibrosis have often manifested as cardiac failure. Therefore, valvular fibrosis and constrictive pericarditis should be excluded if such symptoms occur.
Clinical and diagnostic monitoring such as erythrocyte sedimentation rate, chest-x ray, serum creatinine measurements, and other investigations should be considered at baseline and as necessary while patients are treated with Cabergoline. Following diagnosis of pleural effusion or pulmonary fibrosis, the discontinuance of Cabergoline was reported to result in improvement of signs and symptoms.
Precautions General Initial doses higher than 1. Care should be exercised when administering Cabergoline with other medications known to lower blood pressure.
Postpartum Lactation Inhibition or Suppression Cabergoline is not indicated for the inhibition or suppression of physiologic lactation. Use of bromocriptine, another dopamine agonist for this purpose, has been associated with cases of hypertension, stroke, and seizures.
Hepatic Impairment Since Cabergoline is extensively metabolized by the liver, caution should be used, and careful monitoring exercised, when administering Cabergoline to patients with hepatic impairment. Psychiatric Pathological gambling, increased libido, and hypersexuality have been reported in patients treated with dopamine agonists including Cabergoline.
This has been generally reversible upon reduction of the dose or treatment discontinuation see Postmarketing Surveillance data. Information for Patients Patients should be instructed to notify their physician if they suspect they are pregnant, become pregnant, or intend to become pregnant during therapy. A pregnancy test should be done if there is any suspicion of pregnancy and continuation of treatment should be discussed with their physician.
Patients should notify their physician if they develop shortness of breath, persistent cough, difficulty with breathing when lying down, or swelling in their extremities. Drug Interactions Cabergoline should not be administered concurrently with D2-antagonists, such as phenothiazines, butyrophenones, thioxanthenes, or metoclopramide.
Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenicity studies were conducted in mice and rats with Cabergoline given by gavage at doses up to 0.
There was a slight increase in the incidence of cervical and uterine leiomyomas and uterine leiomyosarcomas in mice. In rats, there was a slight increase in malignant tumors of the cervix and uterus and interstitial cell adenomas. The occurrence of tumors in female rodents may be related to the prolonged suppression of prolactin secretion because prolactin is needed in rodents for the maintenance of the corpus luteum. In male rodents, the decrease in serum prolactin levels was associated with an increase in serum luteinizing hormone, which is thought to be a compensatory effect to maintain testicular steroid synthesis.
Since these hormonal mechanisms are thought to be species-specific, the relevance of these tumors to humans is not known. The mutagenic potential of Cabergoline was evaluated and found to be negative in a battery of in vitro tests. These tests included the bacterial mutation Ames test with Salmonella typhimurium, the gene mutation assay with Schizosaccharomyces pombe P1 and V79 Chinese hamster cells, DNA damage and repair in Saccharomyces cerevisiae D4, and chromosomal aberrations in human lymphocytes.
Cabergoline was also negative in the bone marrow micronucleus test in the mouse. In female rats, a daily dose of 0. Reproduction studies have been performed with Cabergoline in mice, rats, and rabbits administered by gavage.
A dose of 0. These losses could be due to the prolactin inhibitory properties of Cabergoline in rats. At daily doses of 0. In rats, doses higher than 0. Measures to support blood pressure should be taken if necessary. Uncontrolled hypertension or known hypersensitivity to ergot derivatives. History of cardiac valvular disorders, as suggested by anatomical evidence of valvulopathy of any valve, determined by pre-treatment evaluation including echocardiographic demonstration of valve leaflet thickening, valve restriction, or mixed valve restriction- stenosis.
Cabergoline is a long-acting dopamine receptor agonist with a high affinity for D2 receptors. Results of in vitro studies demonstrate that cabergoline exerts a direct inhibitory effect on the secretion of prolactin by rat pituitary lactotrophs.
Cabergoline decreased serum prolactin levels in reserpinized rats. Clinical Studies The prolactin-lowering efficacy of DOSTINEX was demonstrated in hyperprolactinemic women in two randomized, double-blind, comparative studies, one with placebo and the other with bromocriptine. Pharmacokinetics Absorption Following single oral doses of 0. A repeat-dose study in 12 healthy volunteers suggests that steady-state levels following a once-weekly dosing schedule are expected to be twofold to threefold higher than after a single dose.
The absolute bioavailability of cabergoline is unknown. A significant fraction of the administered dose undergoes a first-pass effect. The elimination half-life of cabergoline estimated from urinary data of 12 healthy subjects ranged between 63 to 69 hours. The prolonged prolactin-lowering effect of cabergoline may be related to its slow elimination and long half-life. This finding is consistent with the long-lasting prolactin-lowering effect of the drug. Whole body autoradiography studies in pregnant rats showed no fetal uptake but high levels in the uterine wall.
Significant radioactivity parent plus metabolites detected in the milk of lactating rats suggests a potential for exposure to nursing infants. The drug is extensively distributed throughout the body. Concomitant dosing of highly protein-bound drugs is unlikely to affect its disposition.
Metabolism In both animals and humans, cabergoline is extensively metabolized, predominately via hydrolysis of the acylurea bond or the urea moiety.
Cytochrome P mediated metabolism appears to be minimal. Hydrolysis of the acylurea or urea moiety abolishes the prolactin-lowering effect of cabergoline, and major metabolites identified thus far do not contribute to the therapeutic effect. Nonrenal and renal clearances for cabergoline are about 3. Urinary excretion in hyperprolactinemic patients was similar. Special Populations Renal Insufficiency The pharmacokinetics of cabergoline were not altered in 12 patients with moderate-to-severe renal insufficiency as assessed by creatinine clearance.
Elderly Effect of age on the pharmacokinetics of cabergoline has not been studied. Food-Drug Interaction In 12 healthy adult volunteers, food did not alter cabergoline kinetics. The most common are low blood pressure, dizziness and headache. In treatment of increased prolactin levels side effects are more common as the tablets are taken for a longer period of time. Approximately 70 in patients then experience side effects, but the side effects mostly disappear or decrease after approx. Tell your doctor immediately if you experience any of the following symptoms after taking this medicine.
These symptoms can be severe: This is a very common side effect may affect more than 1 in 10 patients.
The early symptoms may be one or more of the following: These may be indicative of an allergic reaction. This is an uncommon side effect may affect 1 to 10 users in You may experience the following side effects: Inability to resist the impulse, drive or temptation to perform an action that could be harmful to you or others, which may include: Tell your doctor if you experience any of these behaviours; they will discuss ways of managing or reducing the symptoms.
During treatment you may also notice the following side effects: Very common side effects may affect more than 1 user in Common side effects may affect 1 to 10 users in Uncommon side effects may affect 1 to 10 users in Rare side effects may affect 1 to 10 users in 10, Not known cannot be estimated from the available data: Development of excess fibrous connective tissue fibrosis e.
You should become aware of this as difficulty breathing, chest pain, back pain and swelling of the legs. Cabergoline has been linked with somnolence and sudden sleep attacks. Reporting of side effects: If you get any side effects, talk to your doctor, pharmacist or nurse. You can also report side effects directly via the Yellow Card Scheme at: By reporting side effects you can help provide more information on the safety of this medicine.
The expiry date refers to the last day of that month.
Other reported clinical experience has not identified differences in responses between the cabergoline and younger patients. Inactive ingredients consist of lactose anhydrous, leucine, and magnesium stearate. The prolonged prolactin-lowering effect of cabergoline may be related to its slow cabergoline and long half-life. Like all medicines, this medicine can cause side effects, although not everyone gets them. Slideshow Cabergoline - Clinical Pharmacology Mechanism of Action The secretion of prolactin by the anterior pituitary is mainly under hypothalamic inhibitory control, likely exerted through release of dopamine by tuberoinfundibular neurons. Approximately 70 in patients then experience side effects, but the side effects mostly disappear or decrease after approx. Cabergoline was also negative in the bone marrow micronucleus test in the mouse. Cases of valvular and pericardial fibrosis have often manifested as cardiac failure, cabergoline 15 mg 30 ml. There are, however, no adequate and well-controlled studies in pregnant women. Common side effects may affect 1 to 10 users in
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