Grifoparkin tablets


  • Active Ingredient: Carbidopa
  • 300 mg, 125 mg, 110 mg
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What is Grifoparkin?

The active ingredient of Grifoparkin brand is carbidopa. Carbidopa is used with another medicine called levodopa to treat the symptoms of Parkinson's disease (stiffness, tremors, spasms, poor muscle control). Symptoms of Parkinson's disease may be caused by low levels of a chemical called dopamine (DOE pa meen) in the brain.

Used for

Grifoparkin is used to treat diseases such as: GTP-CH Deficiency, Neuroleptic Malignant Syndrome, Parkinsonian Tremor.

Side Effect

Possible side effects of Grifoparkin include: Upset stomach or throwing up.; Throwing up blood or throw up that looks like coffee grounds.; Sore throat.; Feeling very tired or weak.; Signs of low mood (depression), thoughts of killing yourself, nervousness, emotional ups and downs, thinking that is not normal, anxiety,; Headache.; or lack of interest in life.; Signs of high or low blood pressure like very bad headache or dizziness, passing out, change in eyesight..

How to Buy Grifoparkin tablets online?

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Does Grifoparkin/levodopa treat Parkinson’s progression?

Carb />cases, treats the tremor as well.


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What Is Grifoparkin and How Does It Work?

Grifoparkin is available under the following different brand names: Lodosyn.

Dosages of Grifoparkin:

Adult and Pediatric Dosages:

Dosage Considerations – Should be Given as Follows:

  • For use with Grifoparkin-levodopa or with levodopa for Parkinson's disease in patients for whom the dosage of Grifoparkin-levodopa combo provides less than adequate daily dosage of Grifoparkin, or in patients whose dosage requirement of Grifoparkin and levodopa necessitates separate titration of each entity
  • Dosage dependent upon concurrent dose of Grifoparkin-levodopa or levodopa and and patient's specific needs
  • Patients taking Sinemet 10/100: Administer 25 mg Grifoparkin daily with first daily dose of Sinemet 10/100 if necessary; may administer 12.5-25 mg Grifoparkin with each subsequent dose of Sinemet 10/100; not to exceed 200 mg Grifoparkin/day including Grifoparkin from Sinemet
  • Patients taking Sinemet 25/250 or 25/100: Administer 25 mg Grifoparkin daily with either Sinemet strength throughout the day; not to exceed 200 mg/day of Grifoparkin including the Sinemet combination
  • Titration of Grifoparkin and levodopa (individually)
  • Administer 25 mg Grifoparkin orally every 6-8 hours concurrently with levodopa; administer 20-25% less than the previous levodopa in Grifoparkin naive patients; first dose of Grifoparkin should be taken before or at 12 hours after the test dose of levodopa in Grifoparkin naive patients; increase or decrease dose by 1/2 or 1 tablet/day

  • Safety and efficacy not established


Management of acute overdosage with Grifoparkin and Levodopa extended-release tablet is the same as with levodopa. Pyridoxine is not effective in reversing the actions of Grifoparkin and Levodopa extended-release tablets.

General supportive measures should be employed, along with immediate gastric lavage. Intravenous fluids should be administered judiciously and an adequate airway maintained. Electrocardiographic monitoring should be instituted and the patient carefully observed for the development of arrhythmias; if required, appropriate antiarrhythmic therapy should be given. The possibility that the patient may have taken other drugs as well as Grifoparkin and Levodopa extended-release tablets should be taken into consideration. To date, no experience has been reported with dialysis; hence, its value in overdosage is not known.

Based on studies in which high doses of levodopa and/or Grifoparkin were administered, a significant proportion of rats and mice given single oral doses of levodopa of approximately 1500 to 2000 mg/kg are expected to die. A significant proportion of infant rats of both sexes are expected to die at a dose of 800 mg/kg. A significant proportion of rats are expected to die after treatment with similar doses of Grifoparkin. The addition of Grifoparkin in a 1:10 ratio with levodopa increases the dose at which a significant proportion of mice are expected to die to 3360 mg/kg.

What Are Side Effects Associated with Using Grifoparkin?

Common side effects of Grifoparkin include:

  • agitation
  • allergic reaction (difficulty breathing, closing of the throat, swelling of the lips, tongue, or face or hives)
  • anxiety
  • blurred vision
  • confusion
  • constipation
  • darkening or urine or sweat
  • decreased appetite
  • depression or suicidal thoughts
  • dizziness or drowsiness
  • dry mouth
  • fatigue
  • hand tremor
  • insomnia
  • irregular heart beat or fluttering in your chest
  • mild nausea
  • muscle twitches
  • nightmares
  • persistent nausea, vomiting, or diarrhea
  • seizures
  • uncontrolled movements of a part of the body
  • unusual changes in mood or behavior
  • vomiting

This document does not contain all possible side effects and others may occur. Check with your physician for additional information about side effects.

Side Effects

Dizziness, lightheadedness, nausea, vomiting, loss of appetite, trouble sleeping, unusual dreams, or headache may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

This medication may cause saliva, urine, or sweat to turn a dark color. This effect is harmless, but your clothes may be stained.

To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Some people taking this medication have fallen asleep suddenly during their usual daily activities (such as talking on the phone, driving). In some cases, sleep occurred without any feelings of drowsiness beforehand. This sleep effect may occur anytime during treatment with Grifoparkin/levodopa even if you have used this medication for a long time. If you experience increased sleepiness or fall asleep during the day, do not drive or do other possibly dangerous activities until you have discussed this effect with your doctor. Your risk of this sleep effect is increased by using alcohol or other medications that can make you drowsy. See also Precautions section.

Tell your doctor right away if you have any serious side effects, including: new/worsening movements you can't control/spasms, greatly increased eye blinking/twitching, fainting, vision changes (such as blurred vision, double vision), eye pain, severe stomach/abdominal pain, black/tarry stools, vomit that looks like coffee grounds, mental/mood changes (such as agitation, hallucinations, depression, thoughts of suicide), signs of infection (such as sore throat that doesn't go away), easy bleeding/bruising, unusual tiredness, tingling of the hands/feet, unusual strong urges (such as increased gambling, increased sexual urges).

Get medical help right away if you have any very serious side effects, including: chest pain.

Abruptly stopping or reducing the dose of this medication may rarely cause a very serious condition called neuroleptic malignant syndrome (NMS). Get medical help right away if you have any of the following symptoms: fever, unusual muscle stiffness, severe confusion, sweating, fast/irregular heartbeat, rapid breathing.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Grifoparkin levodopa pharmacokinetics

Levodopa is the metabolic precursor of dopamine, does cross the blood-brain barrier, and presumably is converted to dopamine in the basal ganglia. This is thought to be the mechanism whereby levodopa relieves symptoms of Parkinson’s disease, because it replaces depleted brain dopamine in these patients.

Grifoparkin reduces the amount of levodopa required to produce a given response by about 75% and when administered with levodopa, increases both plasma levels and the plasma half-life of levodopa, and decreases plasma and urinary dopamine and homovanillic acid.

In clinical pharmacologic studies, simultaneous administration of separate tablets of Grifoparkin and levodopa produced greater urinary excretion of levodopa in proportion to the excretion of dopamine when compared to the two drugs administered at separate times.

Supplemental pyridoxine (vitamin B6) can be given to patients when they are receiving Grifoparkin and levodopa concomitantly or the fixed combination Grifoparkin-levodopa or Grifoparkin-levodopa extended release. Previous reports in the medical literature cautioned that high doses of vitamin B6 should not be taken by patients on levodopa therapy alone because exogenously administered pyridoxine would enhance the metabolism of levodopa to dopamine. The introduction of Grifoparkin to levodopa therapy, which inhibits the peripheral decarboxylation of levodopa to dopamine, counteracts the metabolic-enhancing effect of vitamin B6 (pyridoxine).


This medication contains Grifoparkin. Do not take Lodosyn if you are allergic to Grifoparkin or any ingredients contained in this drug.

Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center immediately.

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