Indications
It is indicated for the treatment of hyperprolactinemic disorders, either idiopathic or due to pituitary adenomas. It is used to stop breast milk production (lactation) soon after childbirth, stillbirth, abortion or miscarriage. It can also be used to treat other conditions caused by hormonal disturbance which can result in high levels of prolactin being produced. This includes high levels of prolactin caused by tumours of the pituitary gland in both men and women.
Therapeutic Class
Antiparkinsonian Drug
Pharmacology
Cabergoline is a long-acting dopamine receptor agonist with a high affinity for D2 receptors. It works by reducing the amount of prolactin that is released from pituitary gland. Results of in vitro studies demonstrate that Cabergoline exerts a direct inhibitory effect on the secretion of prolactin.
Dosage & Administration
The recommended dosage of Cabergoline Tablet for initiation of therapy is 0.25 mg twice a week. Dosage may be increased by 0.25 mg twice weekly up to a dosage of 1 mg twice a week according to the patient’s serum prolactin level. Before initiating treatment, cardiovascular evaluation should be performed and echocardiography should be considered to assess for valvular disease.Dosage increases should not occur more rapidly than every 4 weeks. If the patient does not respond adequately, and no additional benefit is observed with higher doses, the lowest dose that achieved maximal response should be used and other therapeutic approaches considered. Patients receiving long term treatment with Cabergoline should undergo periodic assessment of their cardiac status and echocardiography should be considered.
After a normal serum prolactin level has been maintained for 6 months, Cabergoline may be discontinued, with periodic monitoring of the serum prolactin level to determine whether or when treatment with Cabergoline should be reinstituted.
To prevent milk production (lactation): 1 mg (two 0.5 mg tablets) on the first day after delivery.
To stop lactation once after start of breastfeeding: 0.25 mg (one half of Cabergoline 0.5 mg table) every 12 hours for two days. To reduce prolactin levels in other conditions: Initially, 0.25 mg twice a week. Dose may be increased up to maximum dose of 4.5 mg or until have responded fully to treatment.
Interaction
Cabergoline should not be administered concurrently with D2-antagonists, such as Phenothiazines, Butyrophenones, Thioxanthenes, or Metoclopramide, Chlorpromazine, Domperidone, and medicines to lower blood pressure.
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