Managing Parkinson’s Disease (PD) involves a highly personalized “balancing act” of neurochemistry. Because the condition is caused by a loss of nerve cells in the brain that produce dopamine, most treatments aim to either replace dopamine, mimic its effects, or prevent its breakdown.
The names of these medications can be confusing because every drug has a generic name (the active ingredient) and a brand name (the name given by the pharmaceutical company). For example, “Paracetamol” is the generic name for the brand “Panadol.”
Here is an expanded guide to the 10 most common medications used to manage Parkinson’s symptoms today.
Levodopa is the most effective medication for treating the motor symptoms of Parkinson’s (tremor, stiffness, and slowness). It is converted into dopamine once it enters the brain. It is always combined with another drug (carbidopa or benserazide) to prevent it from being broken down in the bloodstream before it reaches the brain.
Co-beneldopa (Madopar): A combination of levodopa and benserazide. It is often the first choice for rapid symptom control.
Co-careldopa (Sinemet, Duodopa, Lecado): A combination of levodopa and carbidopa. It comes in various forms, including “Controlled Release” (CR) versions to help manage symptoms overnight.
These drugs do not turn into dopamine. Instead, they “trick” the brain by mimicking the effects of dopamine at the nerve receptors. They are often used in the early stages of the disease to delay the need for levodopa, or later on to “smooth out” the effects of other meds.
Pramipexole (Mirapexin, Pipexus): Frequently used to help with both motor symptoms and the “non-motor” symptoms like restless leg syndrome.
Ropinirole (Requip, Adartrel): Available in “Prolonged Release” tablets that provide a steady level of medication in the blood for 24 hours.
MAO-B is an enzyme in the brain that breaks down dopamine. By blocking this enzyme, these tablets allow the dopamine your brain is still making (or the dopamine from your tablets) to last longer.
Selegiline (Eldepryl, Zelapar): Often prescribed in the very early stages of Parkinson’s. It can be taken as a tablet or a “melt-in-the-mouth” (Zelapar) version for those with swallowing difficulties.
Rasagiline (Azilect): A potent, once-daily inhibitor that is often added to levodopa therapy to reduce “off-time” (periods where the medication isn’t working).
These are “booster” medications. They have no effect on Parkinson’s symptoms themselves but are taken alongside levodopa. They block an enzyme (COMT) that breaks down levodopa in the body, ensuring more of the drug reaches the brain.
Entacapone (Comtess): Usually taken as a separate tablet with every dose of levodopa. Some “triple-combination” tablets like Stalevo combine levodopa, carbidopa, and entacapone in one pill.
Opicapone (Ongentys): A newer generation of COMT inhibitor that is taken just once a day, usually at bedtime, making it much more convenient than entacapone.
Amantadine: Originally an anti-flu medication, it was found to help Parkinson’s patients. It is particularly unique because it is one of the few drugs that can help reduce dyskinesia (the involuntary, jerky movements that can be a side effect of long-term levodopa use).
These are some of the oldest Parkinson’s medications. They work by blocking a different brain chemical called acetylcholine to help restore the balance with dopamine.
Procyclidine (Kemadrin) or Trihexyphenidyl: These are specifically effective at reducing severe tremors or muscle spasms (dystonia). However, they are used less frequently in older patients because they can cause confusion or memory issues.
| Drug Group | Primary Goal | When is it used? |
| Levodopa | Directly replaces Dopamine | At all stages of the disease. |
| Agonists | Mimics Dopamine | Early stages or to “boost” Levodopa. |
| MAO-B Inhibitors | Keeps Dopamine active longer | Early stages or to reduce “off-time.” |
| COMT Inhibitors | Stops Levodopa breaking down | When Levodopa wears off too quickly. |
| Amantadine | Reduces jerky movements | To treat Dyskinesia. |
Timing is Everything: Parkinson’s meds work best when taken at the exact same time every day. Even a 30-minute delay can cause symptoms to return (the “off” state).
The Protein Rule: High-protein meals (meat, dairy) can sometimes interfere with how levodopa is absorbed. If your meds aren’t working well, try taking them 30–60 minutes before you eat.
Impulse Control: Some dopamine agonists can cause unusual side effects like obsessive gambling, shopping, or eating. If you notice these changes, speak to your consultant immediately.
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