Apomorphine (Systemic)
February 25th, 2007| Contents of this page: | |
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Description
Apomorphine (a-poe-MOR-feen) is used to treat Parkinson’s disease, sometimes referred to as *??shaking palsy.*?? By improving muscle control and reducing stiffness, this medicine allows more normal movements of the body as the disease symptoms are reduced.
This medicine is available only with your doctor’s prescription, in the following dosage forms:
- Injection (U.S.)
Before Using This Medicine
In deciding to use a medicine, the risks of using the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For apomorphine, the following should be considered:
Allergies: Tell your doctor if you have ever had any unusual or allergic reaction to apomorphine. Also tell your doctor and pharmacist if you are allergic to sulfites, *??sulfa*?? containing medicines or any other substances, such as foods, preservatives, or dyes.
Pregnancy: Apomorphine has not been studied in pregnant women. However, studies in animals have shown that apomorphine causes birth defects or other problems. Before taking this medicine, make sure your doctor knows if you are pregnant or if you may become pregnant.
Breast-feeding: It is not known whether apomorphine passes into breast milk. Although most medicines pass into breast milk in small amounts, many of them may be used safely while breast-feeding. Mothers who are taking this medicine and who wish to breast-feed should discuss this with their doctor.
Children: Studies on this medicine have been done only in adult patients, and there is no specific information comparing use of apomorphine in children with use in other age groups.
Older adults: Confusion, hallucinations, falls causing bone and joint injuries, heart, lung, or stomach problems may be especially likely to occur in elderly patients, who are usually more sensitive than younger adults to the effects of apomorphine.
Other medicines: Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking apomorphine, it is especially important that your doctor and pharmacist know if you are taking any of the following:
- Alcohol: Should be avoided while using this medicine; may add to the effects that apomorphine has on blood pressure
- Alosetron (e.g., Lotronex) or
- Dolasetron (e.g., Anzemet) or
- Granisetron (e.g., Kytril) or
- Ondansetron (e.g., Zofran) or
- Palonosetron (e.g., Aloxi): Should NOT be used with this medicine; could cause severe low blood pressure and loss of consciousness
- Antihypertensives (high blood pressure medicines) or
- Vasodilators (medicines that widen blood vessels which increases blood flow such as diazoxide [e.g., Hyperstat], hydralazine [e.g., Apresoline], nitroprusside [e.g., Nipride]): Extra caution should be used. Using these together with apomorphine may effect blood pressure more than taking apomorphine alone.
- Dopamine antagonists (drugs used for psychiatric problems such as chlorpromazine [e.g., Thorazine], haloperidol [e.g., Haldol], metoclopramide [e.g., Reglan], thiothixene [e.g., Navane]): May cause apomorphine to not work as well
- Dyskinesia (difficulty performing voluntary movements without tics and spasms): May be worsened by apomorphine
- Heart disease or problems or
- Hypokalemia (abnormally low potassium in the blood) or
- Hypomagnesemia (abnormally low magnesium in the blood)
- Stroke: Extra caution should be used because heart problems have been reported with apomorphine use.
- Kidney problems: The starting dose of apomorphine will need to be reduced.
- Liver problems: Caution should be used because the amount of apomorphine in the blood may be increased.
- Psychotic disorder: The doctor needs to know if the patient is being treated with an antispsychotic medicine to decide whether or not to use this medicine.
- Sleeping disorder: This medicine could increase the risk of being drowsy or sleepy during daily activities.
Proper Use of This Medicine
Some medicines given by injection may sometimes be given at home to patients who do not need to be in the hospital. If you are using this medicine at home, make sure you clearly understand and carefully follow your doctor’s instructions.
Use this medicine only as directed by your doctor. Do not use more or less of it, do not use it more often, and do not use it for a longer time than your doctor ordered. To do so may increased the chance of side effects.
This medicine should be injected just under the skin (i.e., subcutaneously), and not into a vein (i.e., intravenously).
Your doctor will also prescribe another medicine called an antiemetic to take when you are using apomorphine. Antiemetic medicines help reduce nausea and vomiting that can occur with apomorphine use.
Dosing:
The dose of apomorphine will be different for different patients. Follow your doctor’s orders or the directions on the label. The following information includes only the average doses of these medicines. If your dose is different, do not change it unless your doctor tells you to do so.
- For parenteral dosage form (injection):
- For treatment of Parkinson’s disease
- Adults: Your doctor will use a test dose of 0.2 mL and base your starting dose on how your body responds to the test dose.
- Children: Use and dose must be determined by your doctor.
- For treatment of Parkinson’s disease
Missed dose:
Call your doctor or pharmacist for instructions.
Storage:
To store this medicine:
- Keep out of the reach of children.
- Do not store in the bathroom, near the kitchen sink, or in other damp places. Heat or moisture may cause the medicine to break down.
- Do not keep outdated medicine or medicine no longer needed. Ask your health care professional how you should dispose of any medicine you do not use. Be sure that any discarded medicine is out of the reach of children.
Precautions While Using This Medicine
When you are using apomorphine, you should avoid drinking alcohol.
Do not take medicines that cause sleepiness while taking apomorphine.
Do not take other medicines unless they have been discussed with your doctor.
If you take too much apomorphine, you may experience more side effects or they may be stronger than usual. You should contact your doctor or have someone take you to an emergency room right away.
Tell your doctor if you are having trouble with drowsiness and sleepiness during the day.
This medicine may cause some people to become drowsy, dizzy, or less alert than they are normally. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are dizzy or are not alert.
Do not get up too quickly from a lying or sitting position. This could cause dizziness and faintness to occur.
Side Effects of This Medicine
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
- Chest pain, discomfort, or pressure; chills; cold sweats; confusion ; dizziness, faintness, or lightheadedness when getting up from lying or sitting position; falling asleep during activity; mood or mental changes; seeing, hearing, or feeling things that are not there; swelling; twitching, twisting, uncontrolled repetitive movements of tongue, lips, face, arms, or legs
- Less common
- Arm, back, neck or jaw pain or discomfort; chest tightness or heaviness; fainting; fast or irregular heartbeat; nausea ; no blood pressure or pulse; shortness of breath; stopping of heart; sweating; unconsciousness; vomiting
- Rare
- Irregular heartbeat; recurrent fainting
Other 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. However, check with your doctor if any of the following side effects continue or are bothersome.
- More common
- Bleeding, blistering, burning, coldness, discoloration of skin, feeling of pressure, hives, infection, inflammation, itching, lumps, numbness, pain, rash, redness, scarring, soreness, stinging, swelling, tenderness, tingling, ulceration, or warmth at site; blurred vision; dizziness; drowsiness; runny nose; sleepiness; yawning
- Rare
- Painful or prolonged erection of the penis
Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.
Brand Names
In the U.S.:
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Category
- Antidyskinetic (dopamine antagonist)
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