Riluzole AA
Riluzole AA Uses, Dosage, Side Effects, Food Interaction and all others data.
The mode of action of riluzole is unknown. Its pharmacological properties include the following, some of which may be related to its effect:
An inhibitory effect on glutamate release (activation of glutamate reuptake),Inactivation of voltage-dependent sodium channels,Ability to interfere with intracellular events that follow transmitter binding at excitatory amino acid receptors.Riluzole AA, a member of the benzothiazole class, is indicated for the treatment of patients with amyotrophic lateral sclerosis (ALS). Riluzole AA extends survival and/or time to tracheostomy. It is also neuroprotective in various in vivo experimental models of neuronal injury involving excitotoxic mechanisms. The etiology and pathogenesis of amyotrophic lateral sclerosis (ALS) are not known, although a number of hypotheses have been advanced. One hypothesis is that motor neurons, made vulnerable through either genetic predisposition or environmental factors, are injured by glutamate. In some cases of familial ALS the enzyme superoxide dismutase has been found to be defective.
Riluzole AA, a member of the benzothiazole class, is indicated for the treatment of patients with amyotrophic lateral sclerosis (ALS). Riluzole AA extends survival and/or time to tracheostomy. It is also neuroprotective in various in vivo experimental models of neuronal injury involving excitotoxic mechanisms. The etiology and pathogenesis of amyotrophic lateral sclerosis (ALS) are not known, although a number of hypotheses have been advanced. One hypothesis is that motor neurons, made vulnerable through either genetic predisposition or environmental factors, are injured by glutamate. In some cases of familial ALS the enzyme superoxide dismutase has been found to be defective.
| Trade Name | Riluzole AA |
| Availability | Prescription only |
| Generic | Riluzole |
| Riluzole Other Names | Riluzol, Riluzole, Riluzolum |
| Related Drugs | edaravone, Radicava, Radicava ORS, Rilutek, Exservan, Tiglutik |
| Type | |
| Formula | C8H5F3N2OS |
| Weight | Average: 234.198 Monoisotopic: 234.007468097 |
| Protein binding | 96% bound to plasma proteins, mainly to albumin and lipoprotein over the clinical concentration range. |
| Groups | Approved, Investigational |
| Therapeutic Class | Neurodegenerative Disease Drugs / Neuromuscular Disorder Drugs |
| Manufacturer | |
| Available Country | Japan |
| Last Updated: | September 19, 2023 at 7:00 am |
Uses
Riluzole AA is used for the treatment of amyotrophic lateral sclerosis (ALS).
Riluzole AA is also used to associated treatment for these conditions: Amyotrophic Lateral Sclerosis (ALS)
How Riluzole AA works
The mode of action of riluzole is unknown. Its pharmacological properties include the following, some of which may be related to its effect: 1) an inhibitory effect on glutamate release (activation of glutamate reuptake), 2) inactivation of voltage-dependent sodium channels, and 3) ability to interfere with intracellular events that follow transmitter binding at excitatory amino acid receptors.
Dosage
Riluzole AA dosage
The recommended dosage for Riluzole AA is 50 mg taken orally twice daily. Riluzole AA should be taken at least 1 hour before or 2 hours after a meal.Measure serum aminotransferases before and during treatment with Riluzole AA
Side Effects
The following adverse reactions are described below and elsewhere in the labeling: Hepatic Injury, Neutropenia, Interstitial lung disease
Precaution
Hepatic Injury: Cases of drug-induced liver injury, some of which were fatal, have been reported in patients taking Riluzole AA. Asymptomatic elevations of hepatic transaminases have also been reported, and in some patients have recurred upon rechallenge with Riluzole AA.
In clinical studies, the incidence of elevations in hepatic transaminases was greater in Riluzole AAtreated patients than placebo-treated patients. The incidence of elevations of ALT above 5 times the upper limit of normal (ULN) was 2% in Riluzole AA-treated patients. Maximum increases in ALT occurred within 3 months after starting Riluzole AA. About 50% and 8% of Riluzole AAtreated patients in pooled Studies 1 and 2, had at least one elevated ALT level above ULN and above 3 times ULN, respectively
Monitor patients for signs and symptoms of hepatic injury, every month for the first 3 months of treatment, and periodically thereafter. The use of Riluzole AA is not recommended if patients develop hepatic transaminases levels greater than 5 times the ULN. Discontinue Riluzole AA if there is evidence of liver dysfunction (e.g., elevated bilirubin).
Neutropenia: Cases of severe neutropenia (absolute neutrophil count less than 500 per mm3) within the first 2 months of Riluzole AA treatment have been reported. Advise patients to report febrile illnesses.
Interstitial Lung Disease: Interstitial lung disease, including hypersensitivity pneumonitis, has occurred in patients taking Riluzole AA. Discontinue Riluzole AA immediately if interstitial lung disease develops.
Interaction
Strong to moderate CYP1A2 inhibitors: Coadministration may increase Riluzole AA-associated adverse reactions
Strong to moderate CYP1A2 inducers: Coadministration may result in decreased efficacy
Hepatotoxic drugs: Riluzole AA-treated patients that take other hepatotoxic drugs may be at increased risk for hepatotoxicity
Food Interaction
- Take on an empty stomach. Take at least 1 hour before or 2 hours after meals.
Riluzole AA Drug Interaction
Unknown: amphetamine / dextroamphetamine, lorazepam, diphenhydramine, heparin, clonazepam, escitalopram, lithium, mirabegron, dextromethorphan / quinidine, acetaminophen / oxycodone, vitamin a topical, bioflavonoids, levothyroxine, acetaminophen, cyanocobalamin, ascorbic acid, cholecalciferol, alprazolam, ranitidine, sertraline
Riluzole AA Disease Interaction
Moderate: alcohol, liver disease, neutropenia, renal dysfunction
Elimination Route
Riluzole AA is well-absorbed (approximately 90%), with average absolute oral bioavailability of about 60% (CV=30%). A high fat meal decreases absorption, reducing AUC by about 20% and peak blood levels by about 45%.
Half Life
The mean elimination half-life of riluzole is 12 hours (CV=35%) after repeated doses.
Pregnancy & Breastfeeding use
Pregnancy: Based on animal data, may cause fetal harm
Lactation: It is not known if riluzole is excreted in human milk. Riluzole AA or its metabolites have been detected in milk of lactating rat. Women should be advised that many drugs are excreted in human milk and that the potential for serious adverse reactions in nursing infants from Riluzole AA is unknown.
Contraindication
Riluzole AA is contraindicated in patients with a history of severe hypersensitivity reactions to riluzole or to any of its components (anaphylaxis has occurred)
Acute Overdose
Reported symptoms of overdose following ingestion of Riluzole AA ranging from 1.5 to 3 grams (30 to 60 times the recommended dose) included acute toxic encephalopathy, coma, drowsiness, memory loss, and methemoglobinemia. No specific antidote for the treatment of Riluzole AA overdose is available.
Storage Condition
Store at controlled room temperature, 20°C to 25°C, and protect from bright light.
Innovators Monograph
You find simplified version here Riluzole AA
Riluzole AA contains Riluzole see full prescribing information from innovator Riluzole AA Monograph, Riluzole AA MSDS, Riluzole AA FDA label
FAQ
What is Riluzole AA used for?
Riluzole AA is a medication used to slow the progression of amyotrophic lateral sclerosis (ALS).Riluzole AA is the only drug to prolong survival for amyotrophic lateral sclerosis
How safe is Riluzole AA?
The Riluzole AA is generally very safe if monitored correctly.
How does Riluzole AA work?
Riluzole AA works by blocking the release of glutamate.
What are the common side effects of Riluzole AA?
Common side effects of Riluzole AA are include:
- Bladder pain
- bloody or cloudy urine
- blurred vision
- chills
- cough
- dark urine
- diarrhea
- difficult, burning, or painful urination
- fast, pounding, or irregular heartbeat or pulse
- fever
- frequent urge to urinate
- general feeling of discomfort or illness
- headache
- increased cough
- itching skin
- joint pain
- loss of appetite
- lower back or side pain
- muscle aches and pains
- nausea
- nervousness
- persistent loss of appetite or weight loss
- pounding in the ears
- right upper quadrant tenderness
- runny nose
- shivering
- slow heartbeat
- sore throat
- trouble sleeping
- unusual tiredness or weakness
- vomiting
- yellow eyes or skin
Is Riluzole AA safe during pregnancy?
Riluzole AA may harm an unborn baby. Use effective birth control to prevent pregnancy, and tell your doctor if you become pregnant. Ask a doctor if it is safe to breastfeed while using this medicine.
Is Riluzole AA safe during breastfeeding?
There are no adequate studies in women for determining infant risk when using Riluzole AA during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Can I drink alcohol with Riluzole AA?
Avoid drinking alcohol. It may increase your risk of liver damage while taking Riluzole AA. This medication may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.
Can I drive after taking Riluzole AA?
This drug may make you dizzy or drowsy.Do not drive, use machinery, or do anything that needs alertness until you can do it safely.
When Is the best taken of Riluzole AA?
Riluzole AA should be taken on an empty stomach. Take it at least 1 hour before or 2 hours after meals. This medicine works best if there is a constant amount in the blood.
How can I take Riluzole AA?
Riluzole AA usually is taken on an empty stomach twice a day, every 12 hours.
How long does it take for Riluzole AA to work?
It is working behind the scenes to prolong your survival and slow the progression of ALS. The initial clinical trials showed a survival benefit of about 3 months. However, more recent data suggest that the survival benefit may be as much as 12 months, especially for younger patients.
Does Riluzole AA cause liver damage?
The severity of liver injury from Riluzole AA ranges from minor, transient elevations in serum aminotransferase levels to acute hepatic injury with jaundice and possible to acute liver failure.
Does Riluzole AA raise blood pressure?
Blood pressures were significantly higher in Riluzole AA treated patients than in controls with ALS.Riluzole AA treatment may be associated with mild blood pressure elevations.
Who should not take Riluzole AA?
Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
What happen If I miss a dose of Riluzole AA?
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Skip the missed dose and take your next dose at the regular time. Do not use extra medicine to make up for a missed dose.
How long does Riluzole AA stay in my system?
Given the known half-life of Riluzole AA(9–15 hours) and the delay of emergence of amnesia, most of the Riluzole AA should have been out of our patient's system by the time the symptoms emerged, which raises the possibility that she may have been a slow metabolizer of the drug.
How long should I take Riluzole AA?
The initial clinical trials showed a survival benefit of about 3 months.
Can Rilutek be crushed?
Swallow the tablet whole. Do not break, crush, or chew it.
Can you overdose on Riluzole AA?
Overdose symptoms may include drowsiness, confusion, problems with thinking or memory, coma, tremors, or blue lips or fingers. Avoid smoking. Smoking cigarettes may make riluzole less effective.
