Carbidopa (KAR-bi-DOE-pa)Brand Name:
Carbidopa is used for:
Treating symptoms associated with Parkinson disease and parkinsonism-like symptoms caused by other conditions. It is used in combination with another medicine called levodopa. It may also be used for other conditions as determined by your doctor.
Carbidopa is an antiparkinson agent. It works by helping levodopa to reach the brain.
Do NOT use Carbidopa if:
- you are allergic to any ingredient in Carbidopa
- you have narrow-angle glaucoma, undiagnosed skin growths, skin cancer, or a history of skin cancer
- you have taken a monoamine oxidase inhibitor (MAOI) (eg, phenelzine) within the last 14 days
Contact your doctor or health care provider right away if any of these apply to you.
Before using Carbidopa :
Some medical conditions may interact with Carbidopa . Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:
- if you are pregnant, planning to become pregnant, or are breast-feeding
- if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
- if you have allergies to medicines, foods, or other substances
- if you have an irregular heartbeat, heart disease, ulcer, seizures, blood pressure problems, asthma, lung problems, liver or kidney problems, blood or hormone problems, stomach or intestinal bleeding, glaucoma, or a history of heart attack, mental or mood problems, or suicidal thoughts or attempts
Some MEDICINES MAY INTERACT with Carbidopa . Tell your health care provider if you are taking any other medicines, especially any of the following:
- MAOIs (eg, phenelzine) because the risk of severe high blood pressure may be increased
- Tricyclic antidepressants (eg, amitriptyline) because the risk of high blood pressure or unusual muscle movements may be increased
- Metoclopramide because side effects may occur
- Blood pressure medicines or selegiline because the risk of severe dizziness on standing may be increased
- Butyrophenones, (eg, haloperidol), isoniazid, papaverine, phenothiazines (eg, chlorpromazine), or risperidone because they may decrease Carbidopa 's effectiveness
This may not be a complete list of all interactions that may occur. Ask your health care provider if Carbidopa may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.
How to use Carbidopa :
Use Carbidopa as directed by your doctor. Check the label on the medicine for exact dosing instructions.
- Take Carbidopa by mouth on an empty stomach at least 1 hour before or 2 hours after eating.
- Carefully follow the dosing schedule given to you by your health care provider. It may take several weeks to a few months to notice benefit from use because the dose is carefully adjusted over time.
- If you are also taking iron salts (eg, ferrous sulfate), do not take them within 2 hours before or 2 hours after taking Carbidopa . Check with your doctor if you have questions
- Take Carbidopa on a regular schedule to get the most benefit from it. Taking Carbidopa at the same times each day will help you to remember to take it.
- Continue to take Carbidopa even if you feel well. Do not miss any doses.
- If you have been taking levodopa, do not start taking Carbidopa until at least 12 hours after your final dose of levodopa.
- If you miss a dose of Carbidopa , take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.
Ask your health care provider any questions you may have about how to use Carbidopa .
Important safety information:
- Carbidopa may cause drowsiness, dizziness, or lightheadedness. These effects may be worse if you take it with alcohol or certain medicines. Use Carbidopa with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to it.
- Do not drink alcohol or use medicines that may cause drowsiness (eg, sleep aids, muscle relaxers) while you are using Carbidopa ; it may add to their effects. Ask your pharmacist if you have questions about which medicines may cause drowsiness.
- Carbidopa may cause dizziness, lightheadedness, or fainting; alcohol, hot weather, exercise, or fever may increase these effects. To prevent them, sit up or stand slowly, especially in the morning. Sit or lie down at the first sign of any of these effects.
- Tell your doctor or dentist that you take Carbidopa before you receive any medical or dental care, emergency care, or surgery.
- Neuroleptic malignant syndrome (NMS) is a possibly fatal syndrome that can be caused by Carbidopa . Symptoms may include fever; stiff muscles; confusion; abnormal thinking; fast or irregular heartbeat; and sweating. Contact your doctor at once if you have any of these symptoms.
- Diabetes patients - Carbidopa may cause the results of some tests for urine glucose or urine ketones to be wrong. Ask your doctor before you change your diet or the dose of your diabetes medicine.
- Do not suddenly stop taking Carbidopa . Some conditions may become worse when Carbidopa is suddenly stopped. Your dose may need to be slowly lowered by your doctor to avoid side effects.
- Gradually increase physical activity as your symptoms improve.
- A dark color (red, brown, or black) may appear in your saliva, urine, or sweat after taking Carbidopa . This is not harmful.
- The effects of Carbidopa might start to wear off between doses. Talk with your doctor if Carbidopa stops working well or if your condition worsens.
- Carbidopa may interfere with certain lab tests. Be sure your doctor and lab personnel know you are using Carbidopa
- Lab tests, including complete blood cell counts and liver function tests, may be performed while you use Carbidopa . These tests may be used to monitor your condition or check for side effects. Be sure to keep all doctor and lab appointments.
- Use Carbidopa with caution in ELDERLY patients; they may be more sensitive to its effects.
- Carbidopa should not be used in CHILDREN; safety and effectiveness in children have not been confirmed.
- PREGNANCY and BREAST-FEEDING: If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using Carbidopa while you are pregnant. It is not known if Carbidopa is found in breast milk. If you are or will be breast-feeding while you use Carbidopa , check with your doctor. Discuss any possible risks to your baby.
Possible side effects of Carbidopa :
All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Confusion; constipation; diarrhea; dizziness; drowsiness; dry mouth; headache; loss of appetite; nausea; taste changes; trouble sleeping; upset stomach; urinary tract infection; vomiting.
Seek medical attention right away if any of these SEVERE side effects occur:
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); black, tarry stools; blood in vomit; chest pain; confusion; depression; fast or irregular heartbeat; fever; hallucinations; increased sweating; mental or mood changes; muscle pain or unusual stiffness; severe abdominal pain; severe lightheadedness or fainting; sore throat; thoughts of suicide; unusual bruising or bleeding; unusual or painful movements or spasms of the face, eyelids, mouth, tongue, arms, hands, or legs; vision changes (blurred/double vision); yellowing of the skin or eyes.
This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
If OVERDOSE is suspected:
Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center (http://www.aapcc.org), or emergency room immediately.Proper storage of Carbidopa :
Store Carbidopa at room temperature, between 59 and 86 degrees F (15 and 30 degrees C), in a tightly closed container. Store away from heat, moisture, and light. Do not store in the bathroom. Keep Carbidopa out of the reach of children and away from pets.
- If you have any questions about Carbidopa , please talk with your doctor, pharmacist, or other health care provider.
- Carbidopa is to be used only by the patient for whom it is prescribed. Do not share it with other people.
- If your symptoms do not improve or if they become worse, check with your doctor.
This information is a summary only. It does not contain all information about Carbidopa . If you have questions about the medicine you are taking or would like more information, check with your doctor, pharmacist, or other health care provider.
- Carbidopa Professional Patient Advice (Wolters Kluwer)
- carbidopa Concise Consumer Information (Cerner Multum)
- Lodosyn Prescribing Information (FDA)