Bromocriptine (Parlodel) is used to treat conditions associated with high prolactin levels, as well as Parkinson's disease and acromegaly (too much growth hormone). This medication is available as a generic or brand name (Parlodel). Nausea, constipation, and dizziness are common side effects of bromocriptine (Parlodel). While there's limited information available, reports suggest that bromocriptine (Parlodel) doesn't seem to raise the risk for birth defects if taken by mothers during pregnancy.
High levels of growth hormone in adults (acromegaly)
Conditions related to high levels of prolactin (hyperprolactinemia)
Parkinson's disease (PD)
Bromocriptine (Parlodel) is a dopamine agonist. It activates (turns on) dopamine receptors to lower hormone levels if they're too high and improve movement in people with Parkinson's disease.
Source:Â DailyMed
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
More common
Blurred vision
chest pain or discomfort
difficulty in speaking
dizziness or lightheadedness, especially when getting up suddenly from a lying or sitting position
double vision
feeling, seeing, or hearing things that are not there
feeling that others are watching you or controlling your behavior
feeling that others can hear your thoughts
headache
inability to move the arms, legs, or facial muscles
inability to speak
nervousness
pain or discomfort in the arms, jaw, back, or neck
pounding in the ears
severe mood or mental changes
slow or fast heartbeat
slow speech
sweating
trouble breathing
unusual behavior
vomiting
Less common—reported more often in patients with Parkinson's disease
Confusion
uncontrolled movements of the body, such as the face, tongue, arms, hands, head, and upper body
Rare—reported more often in patients taking large doses
Increased frequency of urination
loss of appetite, continuing
lower back pain
runny nose, continuing
stomach pain, continuing or severe
weakness
Rare
Black, tarry stools
bloody vomit
fainting
nervousness
seizures
sudden weakness
temporary blindness
unusual headache
vomiting, continuing or severe
Incidence not known
Agitation
blue or pale skin
chest pain, possibly moving to the left arm, neck, or shoulder
chills
difficulty in speaking
double vision
false beliefs that cannot be changed by facts
headache
high fever
high or low blood pressure
inability to move the arms, legs, or facial muscles
inability to speak
increased frequency of urination
loss of bladder control
lower back pain
severe muscle stiffness
trouble breathing
unusual tiredness or weakness
unusually pale skin
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Less common
drowsiness or tiredness
leg cramps at night
loss of appetite
mental depression
stomach pain
tingling or pain in the fingers and toes when exposed to cold temperatures
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
Can treat many different conditions
Only needs to be taken once or twice a day
Available as a lower-cost generic
Dose can be adjusted based on your response
Commonly causes nausea as a side effect
Can cause changes in blood pressure
Only comes as a 2.5 mg tablet or 5 mg capsule, so you might need to take a lot of pills if you're taking a high dose
Should be taken with food
Take bromocriptine (Parlodel) with food. This can help prevent nausea or vomiting that you might experience after taking the medication.
You might need to cut your tablet in half to get the right dose. The tablets come with a line in the middle to help you. You can purchase a pill splitter to help cut the tablets in half.
Don't try to split the capsules. If you need a smaller dose and only have capsules, ask your provider for a prescription for the tablets.
Side effects of bromocriptine (Parlodel) include dizziness, confusion, and falling asleep suddenly. Don't drive or do activities that require a lot of focus until you know how the medication affects you.
After starting bromocriptine (Parlodel), you might notice a drop in blood pressure when you stand up or get up from bed. This change in blood pressure can cause dizziness and fainting. Getting up slowly can help prevent a dangerous fall.
Let your provider know if you want to stop or take a lower dose of bromocriptine (Parlodel). They'll instruct you on how to lower your dose slowly to prevent bothersome side effects, like anxiety, depression, tiredness, trouble sleeping, sweating, fever, stiff muscles, and pain.
To prevent unnecessary exposure of bromocriptine (Parlodel) to babies during pregnancy, talk to your provider about birth control if you're capable of getting pregnant, but not actively trying. If you haven't gotten your period within 3 days of when expected, take a pregnancy test and contact your provider.
Bromocriptine (Parlodel) can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.
There's limited research about the safety of bromocriptine (Parlodel) during pregnancy. Severe high blood pressure, heart attacks, seizures, and stroke have occurred rarely in people who took bromocriptine (Parlodel) after giving birth (postpartum).
Because of this, your provider might only prescribe bromocriptine (Parlodel) for you during pregnancy or the postpartum period if the benefits outweigh the risks. Let your provider know right away if you become pregnant while taking bromocriptine (Parlodel). You'll need to discuss with your provider whether you should stop or continue the medication with very close monitoring.
Risk factors: History of drowsiness | History of sleep problems | Taking sedatives or medications that make you drowsy | Taking bromocriptine (Parlodel) for Parkinson's disease
Bromocriptine (Parlodel) can make you feel sleepy, particularly if you're taking this medication for Parkinson's disease. Rarely, it can cause you to suddenly fall asleep, even if you don't feel sleepy. Avoid driving or activities that require you to focus until you know how this medication affects you. Take extra care if you have a history of sleepiness or falling asleep suddenly in the past. Let your provider know if you feel very sleepy during the daytime or if you fall asleep during activities where you need to concentrate.
Risk factors: Uncontrolled blood pressure | Taking other medications that can affect blood pressure | Recent childbirth
Bromocriptine (Parlodel) can cause changes to your blood pressure. When you first start the medication, you might have low blood pressure. Symptoms of low blood pressure include tiredness, dizziness, vision changes, and feeling faint.
After a week or two, high blood pressure can happen. Extremely high blood pressure can result in a heart attack or seizure. Dangerously high blood pressure is more often seen in people who have just given birth. Seek medical help if you have symptoms of high blood pressure, such as a headache that won't go away, an irregular heartbeat, chest pain, and difficulty breathing.
There have been reports of people having lower impulse control while taking medications that raise dopamine, such as bromocriptine (Parlodel). This can include strong sexual or gambling urges, urges to spend a lot of money, and binge eating. Talk to your provider if these urges start to have a negative impact on your life. Lowering your dose or stopping the medication can help.
Risk factors: Taking high doses of bromocriptine (Parlodel) | Taking bromocriptine (Parlodel) for long periods of time
Rarely, unexplained lung and heart problems have been reported in people taking bromocriptine (Parlodel). If you experience symptoms of shortness of breath, chest pain, cough, or irregular heartbeat, get medical attention right away.
Risk factors: Taking bromocriptine (Parlodel) for acromegaly
Some people who take bromocriptine (Parlodel) for acromegaly develop a condition called digital vasospasm. This is where your blood vessels constrict (become narrower) and lower blood flow to your fingers or toes. It's usually triggered by cold temperatures. Let your provider know if you notice a discolored finger or toe that's painful. They might tell you to lower your dose, which can help. Keeping your fingers and toes warm can also help prevent this from happening.
High levels of growth hormone in adults (acromegaly): The starting dose is 1.25 mg to 2.5 mg by mouth after dinner, but before bedtime. Your provider might raise your dose every few days, if needed. The typical maintenance dose ranges from 20 mg to 30 mg once a day.
High levels of prolactin (hyperprolactinemia): The typical starting dose is 1.25 mg to 2.5 mg by mouth once a day. Your provider might raise your dose every few days, if needed. The typical maintenance dose ranges from 2.5 mg to 15 mg once a day.
Parkinson's disease: The starting dose is 1.25 mg to 2.5 mg by mouth twice a day with meals. Your provider might raise your dose every couple of weeks, if needed. The maximum daily dose is 100 mg.
Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.
Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Uncontrolled high blood pressure
History of allergy to ergot alkaloids
Postpartum period (following childbirth) in females with a history of heart disease
High levels of growth hormone in adults (acromegaly)
Conditions related to high levels of prolactin (hyperprolactinemia)
Parkinson's disease (PD)
High levels of prolactin (hyperprolactinemia)
By signing up, I agree to GoodRx's Terms and Privacy Policy, and to receive marketing messages from GoodRx.
Hallare, J., et al. (2023). Half life. StatPearls.
Hussain Almalki, M., et al. (2015). Managing prolactinomas during pregnancy. Frontiers in Endocrinology.
Kaiser, U. B. (2012). Hyperprolactinemia and infertility: New insights. The Journal of Clinical Investigation.
Krupp, P., et al. (1987). Bromocriptine in pregnancy: Safety aspects. Klinische Wochenschrift.
MedlinePlus. (2020). Prolactin levels.
Thorner, M. O., et al. (1975). Bromocriptine treatment of acromegaly. British Medical Journal.Â
Validus Pharmaceuticals LLC. (2023). Parlodel- bromocriptine mesylate tablet; bromocriptine mesylate capsule, gelatin coated [package insert]. DailyMed.
You and Your Hormones. (2023). Prolactin.
Research prescriptions and over-the-counter medications from A to Z, compare drug prices, and start saving.