July 3, 2015
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Lodosyn Patient Information including If I Miss a Dose

What happens if I miss a dose (Lodosyn)?


What happens if I overdose (Lodosyn)?

Seek emergency medical attention if an overdose is suspected.

Symptoms of a carbidopa overdose include muscle spasms or weakness, spasms of the eyelid, nausea, vomiting, diarrhea, an irregular heartbeat, confusion, agitation, hallucinations, and unconsciousness.

What should I avoid while taking carbidopa (Lodosyn)?


What other drugs will affect carbidopa (Lodosyn)?

Do not take carbidopa and levodopa if you have taken a monoamine oxidase inhibitor (MAOI) such as isocarboxazid (Marplan), phenelzine (Nardil), or tranylcypromine (Parnate) in the past 14 days.

Antacids may increase the effectiveness of carbidopa and levodopa and lead to side effects. Ask your doctor about the use of antacids.

Before taking carbidopa, tell your doctor if you are taking any of the following medicines:

  • a medicine to treat high blood pressure (hypertension);
  • a medicine used to treat seizures, such as phenytoin (Dilantin), ethotoin (Peganone), or mephenytoin (Mesantoin);
  • papaverine (Pavabid, Cerespan, others);
  • pyridoxine or vitamin B6;
  • an antidepressant such as amitriptyline (Elavil), doxepin (Sinequan), nortriptyline (Pamelor), desipramine (Norpramin), and amoxapine (Asendin); or
  • a medicine used to treat a psychiatric condition (or nausea and vomiting), such as chlorpromazine (Thorazine), fluphenazine (Prolixin), mesoridazine (Serentil), thioridazine (Mellaril), trifluoperazine (Stelazine), and haloperidol (Haldol).

You may not be able to take carbidopa, or you may require a dosage adjustment or special monitoring if you are taking any of the medicines listed above.

Levodopa may interfere with urine tests for sugar and ketones. If you have diabetes and notice changes in urine test results, talk to your doctor before making any changes in your diabetes medication.

Drugs other than those listed here may also interact with carbidopa. Talk to your doctor and pharmacist before taking any prescription or over-the-counter medicines, including vitamins, minerals, and herbal products.

Where can I get more information?

Your pharmacist can provide more information about carbidopa.






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