Parlodel
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Questions & Answers
Side Effects & Adverse Reactions
Since hyperprolactinemia with amenorrhea/galactorrhea and infertility has been found in patients with pituitary tumors, a complete evaluation of the pituitary is indicated before treatment with Parlodel® (bromocriptine mesylate).
If pregnancy occurs during Parlodel administration, careful observation of these patients is mandatory. Prolactin-secreting adenomas may expand and compression of the optic or other cranial nerves may occur, emergency pituitary surgery becoming necessary. In most cases, the compression resolves following delivery. Reinitiation of Parlodel treatment has been reported to produce improvement in the visual fields of patients in whom nerve compression has occurred during pregnancy. The safety of Parlodel treatment during pregnancy to the mother and fetus has not been established.
Parlodel has been associated with somnolence, and episodes of sudden sleep onset, particularly in patients with Parkinson’s disease. Sudden onset of sleep during daily activities, in some cases without awareness or warning signs, has been reported. Patients must be informed of this and advised not to drive or operate machines during treatment with bromocriptine. Patients who have experienced somnolence and/or an episode of sudden sleep onset must not drive or operate machines. Furthermore, a reduction of dosage or termination of therapy may be considered.
Symptomatic hypotension can occur in patients treated with Parlodel for any indication. In postpartum studies with Parlodel, decreases in supine systolic and diastolic pressures of greater than 20 mm and 10 mm Hg, respectively, have been observed in almost 30% of patients receiving Parlodel. On occasion, the drop in supine systolic pressure was as much as 50-59 mm of Hg.
Since, especially during the first days of treatment, hypotensive reactions may occasionally occur and result in reduced alertness, particular care should be exercised when driving a vehicle or operating machinery.
While hypotension during the start of therapy with Parlodel occurs in some patients, in rare cases serious adverse events, including hypertension, myocardial infarction, seizures, stroke, have been reported in postpartum women treated with Parlodel for the inhibition of lactation. Hypertension have been reported, sometimes at the initiation of therapy, but often developing in the second week of therapy; seizures have also been reported both with and without the prior development of hypertension; stroke have been reported mostly in postpartum patients whose prenatal and obstetric courses had been uncomplicated. Many of these patients experiencing seizures (including cases of status epilepticus) and/or strokes reported developing a constant and often progressively severe headache hours to days prior to the acute event. Some cases of strokes and seizures were also preceded by visual disturbances (blurred vision, and transient cortical blindness). Cases of acute myocardial infarction have also been reported.
Although a causal relationship between Parlodel administration and hypertension, seizures, strokes, and myocardial infarction in postpartum women has not been established, use of the drug for prevention of physiological lactation, or in patients with uncontrolled hypertension is not recommended. In patients being treated for hyperprolactinemia, Parlodel should be withdrawn when pregnancy is diagnosed (see PRECAUTIONS, Hyperprolactinemic States). In the event that Parlodel is reinstituted to control a rapidly expanding macroadenoma (see PRECAUTIONS, Hyperprolactinemic States) and a patient experiences a hypertensive disorder of pregnancy, the benefit of continuing Parlodel must be weighed against the possible risk of its use during a hypertensive disorder of pregnancy. When Parlodel is being used to treat acromegaly or Parkinson’s disease in patients who subsequently become pregnant, a decision should be made as to whether the therapy continues to be medically necessary or can be withdrawn. If it is continued, the drug should be withdrawn in those who may experience hypertensive disorders of pregnancy (including eclampsia, preeclampsia, or pregnancy-induced hypertension) unless withdrawal of Parlodel is considered to be medically contraindicated. Because of the possibility of an interaction between Parlodel and other ergot alkaloids, the concomitant use of these medications is not recommended. Periodic monitoring of the blood pressure, particularly during the first weeks of therapy is prudent. If hypertension, severe, progressive, or unremitting headache (with or without visual disturbance), or evidence of CNS toxicity develops, drug therapy should be discontinued and the patient should be evaluated promptly. Particular attention should be paid to patients who have recently been treated or are on concomitant therapy with drugs that can alter blood pressure. Their concomitant use in the puerperium is not recommended.
Among patients on Parlodel, particularly on long-term and high-dose treatment, pleural and pericardial effusions, as well as pleural and pulmonary fibrosis and constrictive pericarditis, have been reported. Patients with unexplained pleuropulmonary disorders should be examined thoroughly and discontinuation of Parlodel therapy should be considered. In those instances in which Parlodel treatment was terminated, the changes slowly reverted towards normal.
In a few patients on Parlodel, particularly on long-term and high-dose treatment, retroperitoneal fibrosis has been reported. To ensure recognition of retroperitoneal fibrosis at an early reversible stage it is recommended that its manifestations (e.g., back pain, edema of the lower limbs, impaired kidney function) should be watched in this category of patients. Parlodel medication should be withdrawn if fibrotic changes in the retroperitoneum are diagnosed or suspected.
Legal Issues
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FDA Safety Alerts
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Manufacturer Warnings
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FDA Labeling Changes
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Uses
Parlodel® (bromocriptine mesylate) is indicated for the treatment of dysfunctions associated with hyperprolactinemia including amenorrhea with or without galactorrhea, infertility or hypogonadism. Parlodel treatment is indicated in patients with prolactin-secreting adenomas, which may be the basic underlying endocrinopathy contributing to the above clinical presentations. Reduction in tumor size has been demonstrated in both male and female patients with macroadenomas. In cases where adenectomy is elected, a course of Parlodel therapy may be used to reduce the tumor mass prior to surgery.
Parlodel therapy is indicated in the treatment of acromegaly. Parlodel therapy, alone or as adjunctive therapy with pituitary irradiation or surgery, reduces serum growth hormone by 50% or more in approximately ½ of patients treated, although not usually to normal levels.
Since the effects of external pituitary radiation may not become maximal for several years, adjunctive therapy with Parlodel offers potential benefit before the effects of irradiation are manifested.
Parlodel SnapTabs® or capsules are indicated in the treatment of the signs and symptoms of idiopathic or postencephalitic Parkinson’s disease. As adjunctive treatment to levodopa (alone or with a peripheral decarboxylase inhibitor), Parlodel therapy may provide additional therapeutic benefits in those patients who are currently maintained on optimal dosages of levodopa, those who are beginning to deteriorate (develop tolerance) to levodopa therapy, and those who are experiencing “end of dose failure’’ on levodopa therapy. Parlodel therapy may permit a reduction of the maintenance dose of levodopa and, thus may ameliorate the occurrence and/or severity of adverse reactions associated with long-term levodopa therapy such as abnormal involuntary movements (e.g., dyskinesias) and the marked swings in motor function (“on-off’’ phenomenon). Continued efficacy of Parlodel therapy during treatment of more than 2 years has not been established.
Data are insufficient to evaluate potential benefit from treating newly diagnosed Parkinson’s disease with Parlodel. Studies have shown, however, significantly more adverse reactions (notably nausea, hallucinations, confusion and hypotension) in Parlodel-treated patients than in levodopa/carbidopa-treated patients. Patients unresponsive to levodopa are poor candidates for Parlodel therapy.
History
There is currently no drug history available for this drug.
Other Information
Parlodel® (bromocriptine mesylate) is an ergot derivative with potent dopamine receptor agonist activity. Each Parlodel® (bromocriptine mesylate) SnapTabs® tablet for oral administration contains 2½ mg and each capsule contains 5 mg bromocriptine (as the mesylate). Bromocriptine mesylate is chemically designated as Ergotaman-3′,6′,18-trione, 2-bromo-12′-hydroxy-2′- (1-methylethyl)-5′-(2-methylpropyl)-, (5′α)-monomethanesulfonate (salt).
The structural formula is:
Active Ingredient: bromocriptine mesylate, USP
Inactive Ingredients: colloidal silicon dioxide, lactose, magnesium stearate, povidone, starch, and another ingredient
Active Ingredient: bromocriptine mesylate, USP
Inactive Ingredients: colloidal silicon dioxide, gelatin, lactose, magnesium stearate, red iron oxide, silicon dioxide, sodium lauryl sulfate, starch, titanium dioxide, yellow iron oxide, and another ingredient
Sources
Parlodel Manufacturers
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Novartis Pharmaceuticals Corporation
![Parlodel (Bromocriptine Mesylate) Tablet Parlodel (Bromocriptine Mesylate) Capsule [Novartis Pharmaceuticals Corporation]](/wp-content/themes/bootstrap/assets/img/loading2.gif)
Parlodel | Novartis Pharmaceuticals Corporation
GeneralIt is recommended that Parlodel® (bromocriptine mesylate) be taken with food. Patients should be evaluated frequently during dose escalation to determine the lowest dosage that produces a therapeutic response.
Hyperprolactinemic IndicationsThe initial dosage of Parlodel SnapTabs® in adults is ½ to one 2½ mg scored tablet daily. An additional 2½ mg tablet may be added to the treatment regimen as tolerated every 2-7 days until an optimal therapeutic response is achieved. The therapeutic dosage ranged from 2.5-15 mg daily in adults studied clinically.
Based on limited data in children of age 11 to 15, (see Pediatric Use) the initial dose is ½ to one 2½ mg scored tablet daily. Dosing may need to be increased as tolerated until a therapeutic response is achieved. The therapeutic dosage ranged from 2.5-10 mg daily in children with prolactin-secreting pituitary adenomas.
In order to reduce the likelihood of prolonged exposure to Parlodel should an unsuspected pregnancy occur, a mechanical contraceptive should be used in conjunction with Parlodel therapy until normal ovulatory menstrual cycles have been restored. Contraception may then be discontinued in patients desiring pregnancy.
Thereafter, if menstruation does not occur within 3 days of the expected date, Parlodel therapy should be discontinued and a pregnancy test performed.
AcromegalyVirtually all acromegalic patients receiving therapeutic benefit from Parlodel also have reductions in circulating levels of growth hormone. Therefore, periodic assessment of circulating levels of growth hormone will, in most cases, serve as a guide in determining the therapeutic potential of Parlodel. If, after a brief trial with Parlodel therapy, no significant reduction in growth hormone levels has taken place, careful assessment of the clinical features of the disease should be made, and if no change has occurred, dosage adjustment or discontinuation of therapy should be considered.
The initial recommended dosage is ½ to one 2½ mg Parlodel SnapTabs tablet on retiring (with food) for 3 days. An additional ½ to 1 SnapTabs tablet should be added to the treatment regimen as tolerated every 3-7 days until the patient obtains optimal therapeutic benefit. Patients should be reevaluated monthly and the dosage adjusted based on reductions of growth hormone or clinical response. The usual optimal therapeutic dosage range of Parlodel varies from 20-30 mg/day in most patients. The maximal dosage should not exceed 100 mg/day.
Patients treated with pituitary irradiation should be withdrawn from Parlodel therapy on a yearly basis to assess both the clinical effects of radiation on the disease process as well as the effects of Parlodel therapy. Usually a 4-8 week withdrawal period is adequate for this purpose. Recurrence of the signs/symptoms or increases in growth hormone indicate the disease process is still active and further courses of Parlodel should be considered.
Parkinson’s DiseaseThe basic principle of Parlodel therapy is to initiate treatment at a low dosage and, on an individual basis, increase the daily dosage slowly until a maximum therapeutic response is achieved. The dosage of levodopa during this introductory period should be maintained, if possible. The initial dose of Parlodel is ½ of a 2½ mg SnapTabs tablet twice daily with meals. Assessments are advised at 2-week intervals during dosage titration to ensure that the lowest dosage producing an optimal therapeutic response is not exceeded. If necessary, the dosage may be increased every 14-28 days by 2½ mg/day with meals. Should it be advisable to reduce the dosage of levodopa because of adverse reactions, the daily dosage of Parlodel, if increased, should be accomplished gradually in small (2½ mg) increments.
The safety of Parlodel has not been demonstrated in dosages exceeding 100 mg/day.
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Validus Pharmaceuticals Llc
Parlodel | Validus Pharmaceuticals Llc
GeneralIt is recommended that Parlodel® (bromocriptine mesylate) be taken with food. Patients should be evaluated frequently during dose escalation to determine the lowest dosage that produces a therapeutic response.
Hyperprolactinemic IndicationsThe initial dosage of Parlodel SnapTabs® in adults is ½ to one 2½ mg scored tablet daily. An additional 2½ mg tablet may be added to the treatment regimen as tolerated every 2-7 days until an optimal therapeutic response is achieved. The therapeutic dosage ranged from 2.5-15 mg daily in adults studied clinically.
Based on limited data in children of age 11 to 15, (see Pediatric Use) the initial dose is ½ to one 2½ mg scored tablet daily. Dosing may need to be increased as tolerated until a therapeutic response is achieved. The therapeutic dosage ranged from 2.5-10 mg daily in children with prolactin-secreting pituitary adenomas.
In order to reduce the likelihood of prolonged exposure to Parlodel should an unsuspected pregnancy occur, a mechanical contraceptive should be used in conjunction with Parlodel therapy until normal ovulatory menstrual cycles have been restored. Contraception may then be discontinued in patients desiring pregnancy.
Thereafter, if menstruation does not occur within 3 days of the expected date, Parlodel therapy should be discontinued and a pregnancy test performed.
AcromegalyVirtually all acromegalic patients receiving therapeutic benefit from Parlodel also have reductions in circulating levels of growth hormone. Therefore, periodic assessment of circulating levels of growth hormone will, in most cases, serve as a guide in determining the therapeutic potential of Parlodel. If, after a brief trial with Parlodel therapy, no significant reduction in growth hormone levels has taken place, careful assessment of the clinical features of the disease should be made, and if no change has occurred, dosage adjustment or discontinuation of therapy should be considered.
The initial recommended dosage is ½ to one 2½ mg Parlodel SnapTabs tablet on retiring (with food) for 3 days. An additional ½ to 1 SnapTabs tablet should be added to the treatment regimen as tolerated every 3-7 days until the patient obtains optimal therapeutic benefit. Patients should be reevaluated monthly and the dosage adjusted based on reductions of growth hormone or clinical response. The usual optimal therapeutic dosage range of Parlodel varies from 20-30 mg/day in most patients. The maximal dosage should not exceed 100 mg/day.
Patients treated with pituitary irradiation should be withdrawn from Parlodel therapy on a yearly basis to assess both the clinical effects of radiation on the disease process as well as the effects of Parlodel therapy. Usually a 4-8 week withdrawal period is adequate for this purpose. Recurrence of the signs/symptoms or increases in growth hormone indicate the disease process is still active and further courses of Parlodel should be considered.
Parkinson's DiseaseThe basic principle of Parlodel therapy is to initiate treatment at a low dosage and, on an individual basis, increase the daily dosage slowly until a maximum therapeutic response is achieved. The dosage of levodopa during this introductory period should be maintained, if possible. The initial dose of Parlodel is ½ of a 2½ mg SnapTabs tablet twice daily with meals. Assessments are advised at 2-week intervals during dosage titration to ensure that the lowest dosage producing an optimal therapeutic response is not exceeded. If necessary, the dosage may be increased every 14-28 days by 2½ mg/day with meals. Should it be advisable to reduce the dosage of levodopa because of adverse reactions, the daily dosage of Parlodel, if increased, should be accomplished gradually in small (2½ mg) increments.
The safety of Parlodel has not been demonstrated in dosages exceeding 100 mg/day.
![Parlodel (Bromocriptine Mesylate) Tablet Parlodel (Bromocriptine Mesylate) Capsule, Gelatin Coated [Validus Pharmaceuticals Llc]](http://dailymed.nlm.nih.gov/dailymed/image.cfm?setid=fc2a08dd-4fb6-4ac4-9082-f99552fae25c&name=parlodel-capsules-2.jpg)
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