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Dostinex

SKU: Pfizer-Caber-0.5-tabs
$30
Out of stock
Dosage: 0.5mg/tab
Active substance: Cabergoline
Pharmaceutical Form: Tablets
Quantity Per Box: 2

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DESCRIPTION

Name of the medicinal product

Dostinex 0.5 mg Tablets


Qualitative and quantitative composition

One Dostinex tablet contains 0.5 mg cabergoline.

Excipients with known effect:

Each tablet contains 75.90 mg of lactose.


Therapeutic indications

Inhibition/suppression of physiological lactation

Cabergoline is indicated for the inhibition of physiological lactation soon after delivery and for suppression of already established lactation:

1. After parturition, when the mother elects not to breast feed the infant or when breast feeding is contraindicated due to medical reasons related to the mother or the new-born.

2. After stillbirth or abortion.

Cabergoline prevents/suppresses physiological lactation by inhibiting prolactin secretion.

In controlled clinical trials, cabergoline given as a single 1 mg administration during the first day post-partum, was effective in inhibiting milk secretion, as well as breast engorgement and pain in 70 - 90% of the women. Less than 5% of women experienced rebound breast symptomatology during the third post-partum week (which was usually mild in severity).

Suppression of milk secretion and relief of breast engorgement and pain are obtained in approximately 85% of nursing women treated with a total dose of 1 mg cabergoline given in four divided doses over two days. Rebound breast symptomatology after day 10 is uncommon (approximately 2% of cases).

Treatment of hyperprolactinaemic disorders

Cabergoline is indicated for the treatment of dysfunctions associated with hyperprolactinaemia, including amenorrhoea, oligomenorrhoea, anovulation and galactorrhoea. Cabergoline is indicated in patients with prolactin-secreting pituitary adenomas (micro- and macroprolactinomas), idiopathic hyperprolactinaemia, or empty sella syndrome with associated hyperprolactinaemia, which represent the basic underlying pathologies contributing to the above clinical manifestations.

On chronic therapy, cabergoline at doses ranging between 1 and 2 mg per week, was effective in normalising serum prolactin levels in approximately 84% of hyperprolactinaemic patients. Regular cycles were resumed in 83% of previously amennorhoeic women. Restoration of ovulation was documented in 89% of women with progesterone levels monitored during the luteal phase. Galactorrhoea disappeared in 90% of cases showing this symptom before therapy. Reduction in tumour size was obtained in 50 - 90% of female and male patients with micro- or macroprolactinoma.


Posology and method of administration

Cabergoline is to be administered by the oral route. Since in clinical studies cabergoline has been mainly administered with food and since the tolerability of this class of compounds is improved with food, it is recommended that cabergoline be preferably taken with meals for all the therapeutic indications.

Inhibition/suppression of physiological lactation

For inhibition of lactation cabergoline should be administered during the first day post-partum. The recommended therapeutic dose is 1 mg (two 0.5 mg tablets) given as a single dose.

For suppression of established lactation the recommended therapeutic dosage regimen is 0.25 mg (one-half 0.5 mg tablet) every 12 hours for two days (1 mg total dose). This dosage regimen has been demonstrated to be better tolerated than the single dose regimen in women electing to suppress lactation having a lower incidence of adverse events, in particular of hypotensive symptoms.

Treatment of hyperprolactinaemic disorders

The recommended initial dosage of cabergoline is 0.5 mg per week given in one or two (one-half of one 0.5 mg tablet) doses (e.g. on Monday and Thursday) per week. The weekly dose should be increased gradually, preferably by adding 0.5 mg per week at monthly intervals until an optimal therapeutic response is achieved. The therapeutic dosage is usually 1 mg per week and ranges from 0.25 mg to 2 mg per week. Doses of cabergoline up to 4.5 mg per week have been used in hyperprolactinaemic patients.

The maximum dose should not exceed 3mg per day.

The weekly dose may be given as a single administration or divided into two or more doses per week according to patient tolerability. Division of the weekly dose into multiple administrations is advised when doses higher than 1 mg per week are to be given since the tolerability of doses greater than 1 mg taken as a single weekly dose has been evaluated only in a few patients.

Patients should be evaluated during dose escalation to determine the lowest dosage that produces the therapeutic response. Monitoring of serum prolactin levels at monthly intervals is advised since, once the effective therapeutic dosage regimen has been reached, serum prolactin normalisation is usually observed within two to four weeks.

After cabergoline withdrawal, recurrence of hyperprolactinaemia is usually observed. However, persistent suppression of prolactin levels has been observed for several months in some patients. Of the group of women followed up, 23/29 had ovulatory cycles which continued for greater than 6 months after cabergoline discontinuation.


Contraindications

Hypersensitivity to cabergoline, any of the excipients or any ergot alkaloid.

History of pulmonary, pericardial and retroperitoneal fibrotic disorders.

Cabergoline is contraindicated in patients with hepatic insufficiency and with toxaemia of pregnancy. Cabergoline should not be co-administered with anti-psychotic medications or administered to women with a history of puerperal psychosis.

For long-term treatment: Evidence of cardiac valvulopathy as determined by pre-treatment echocardiography. 


Special warnings and precautions for use:

The safety and efficacy of cabergoline have not yet been established in patients with renal and hepatic disease. As with other ergot derivatives, cabergoline should be given with caution to patients with severe cardiovascular disease, Raynaud's syndrome, renal insufficiency, peptic ulcer or gastrointestinal bleeding, or with a history of serious, particularly psychotic, mental disorders. Particular care should be taken when patients are taking concomitant psychoactive medication.

Patients with rare hereditary problems of galactose intolerance, total lactase deficiency or glucose-galactose malabsorption should not take this medicine.

Symptomatic hypotension can occur with cabergoline administration for any indication. Care should be exercised when administering cabergoline concomitantly with other drugs known to lower blood pressure.

The effects of alcohol on overall tolerability of cabergoline are currently unknown.

Before cabergoline administration, pregnancy should be excluded and after treatment pregnancy should be prevented for at least one month.


Overdose

Symptoms of overdose would likely be those of over-stimulation of dopamine receptors e.g. nausea, vomiting, gastric complaints, postural hypotension, confusion/psychosis or hallucinations.

Supportive measures should be taken to remove any unabsorbed drug and maintain blood pressure, if necessary. In addition, the administration of dopamine antagonist drugs may be advisable.

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