Compare carbidopa vs. Azilect

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Lodosyn (carbidopa)

Prescription only

Azilect (rasagiline)

Prescription only
Treats Parkinson's disease when given with levodopa.

Lodosyn (carbidopa) enhances the effect of levodopa. It cannot relieve symptoms of Parkinson's disease when taken by itself.

Treats Parkinson's disease.

Azilect (rasagiline) is one of the recommended medicines to treat Parkinson's disease. It is now available in generic, which makes it more affordable for people without insurance.

Upsides
  • Extra doses of Lodosyn (carbidopa) allows you to get more out of levodopa, especially in later stages of the disease.
  • It is available in a combination pill with levodopa once you find the right dose that works for you.
  • Azilect (rasagiline) is one of the go-to medicines for Parkinson's disease. It can be used in early and late stages of the disease.
  • Taking Azilect (rasagiline) by itself can help slow down Parkinson's disease, but it works better when it's given with other medicines.
  • Azilect (rasagiline) is available as generic as well as brand name, so there are usually lower out-of-pocket costs for you with insurance.
Downsides
  • Your doctor may need to change the dose of Lodosyn (carbidopa) frequently before finding the right dose.
  • It can cause unusual cravings and changes in behavior in some people.
Used for
Dosage forms
  • Pill
  • Pill
Price
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Reviews
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Side effects
The Lodosyn (carbidopa) FDA package insert doesn’t have numbers about how common side effects are.
46possible side effects
  • Difficulty controlling movement
    18%
  • Headache
    14%
  • Accidental injury
    12%
  • Nausea
    12%
  • Falls
    11%
  • Weight loss
    9%
  • Constipation
    9%
  • Low blood pressure
    9%
  • Joint pain
    8%
  • Indigestion
    7%
  • Dizziness
    7%
  • Swelling in arms and legs
    7%
  • Vomiting
    7%
  • Dry mouth
    6%
  • Rash
    6%
  • Sleepiness
    6%
  • Depression
    5%
  • Flu-like symptoms
    5%
  • Abdominal pain
    5%
  • Loss of appetite
    5%
  • Diarrhea
    5%
  • Bruising
    5%
  • Tingling or prickling sensation
    5%
  • Back pain
    4%
  • Cough
    4%
  • Trouble sleeping
    4%
  • Cold or flu
    4%
  • Unusual dreams
    4%
  • Hallucinations
    4%
  • Eyelid problems
    3%
  • Fever
    3%
  • Stomach infection
    3%
  • Stuffy nose
    3%
  • Movement coordination problems
    3%
  • Shortness of breath
    3%
  • Infections
    3%
  • Neck pain
    3%
  • Sweating
    3%
  • Tendon swelling
    3%
  • Uncontrollable muscle movements
    3%
  • Arthritis
    2%
  • Weakness
    2%
  • Gum swelling
    2%
  • Excessive bleeding
    2%
  • Hernia
    2%
  • Muscle weakness
    2%
See more detailed side effects
Risks and risk factors
  • Increased blood pressure
    • Eating foods rich in tyramine, like soy sauce, fermented cheese and smoked meats
  • Serotonin syndrome
    • Tricyclic antidepressants
    • Fentanyl
    • Tramadol
    • Buspirone
    • ADHD medicines
    • Triptans
    • dextromethorphan
    • pseudoephedrine
  • Falling asleep during the day
    • Taking other medicines for Parkinson's disease
  • Low blood pressure
  • Movement problems
    • Taking other medicines for Parkinson's disease
  • Lack of impulse control
    • Taking other medicines for Parkinson's disease
See more detailed risks and warnings