Zanaflex
Insomnia, Chronic Pain, Migraine + 10 more
Treatment
1 FDA approval
20 Active Studies for Zanaflex
Treatment for
Insomnia
What is Zanaflex
Tizanidine
The Generic name of this drug
Treatment Summary
Tizanidine is a medication used to treat muscle spasms. Muscle spasms can be caused by conditions such as multiple sclerosis, stroke, brain injury, or spinal cord injury. It works by blocking the signals that cause muscle spasms, which makes them less painful and easier to control. Tizanidine was approved by the FDA in 1996 and is a fast-acting drug.
Zanaflex
is the brand name
Zanaflex Overview & Background
Brand Name
Generic Name
First FDA Approval
How many FDA approvals?
Zanaflex
Tizanidine
1997
289
Approved as Treatment by the FDA
Tizanidine, also known as Zanaflex, is approved by the FDA for 1 uses including Muscle Spasticity .
Muscle Spasticity
Helps manage Spasticity, Muscle
Effectiveness
How Zanaflex Affects Patients
Tizanidine is a medicine designed to reduce the spasticity of muscles, which is when they contract and relax involuntarily. This can cause reduced mobility and a lot of pain, which can make it difficult to carry out everyday activities. It works by binding to Alpha-2 adrenergic receptor sites and helps to reduce muscle spasm and clonus. It has a stronger effect on polysynaptic reflexes (when several relay neurons communicate with motor neurons that control muscle movement). Taking tizanidine can lower heart rate and blood pressure, but it can cause a rise in these if it is stopped suddenly.
How Zanaflex works in the body
Tizanidine works by blocking nerve signals that cause muscle spasms. It does this by attaching to alpha-2 adrenergic receptors, which are located on the nerves. This stops the release of certain excitatory neurotransmitters, like glutamate and aspartate, which tell the muscles to contract. Tizanidine also has a weak effect on the cardiovascular system, due to its attachment to alpha-1 receptors.
When to interrupt dosage
The suggested quantity of Zanaflex is contingent upon the diagnosed condition, such as Insomnia, smooth muscle relaxation before radiological procedures and Spasticity, Muscle. The amount of dosage may differ, in line with the administration approach (e.g. Kit; Tablet - Oral or Capsule, gelatin coated - Oral) presented in the following table.
Condition
Dosage
Administration
Muscle Relaxation
, 4.0 mg, 2.0 mg, 6.0 mg
Tablet, Tablet - Oral, , Oral, Capsule, gelatin coated, Capsule, gelatin coated - Oral, Capsule, Capsule - Oral, Oral; Topical
Muscle Spasticity
, 4.0 mg, 2.0 mg, 6.0 mg
Tablet, Tablet - Oral, , Oral, Capsule, gelatin coated, Capsule, gelatin coated - Oral, Capsule, Capsule - Oral, Oral; Topical
Analgesics
, 4.0 mg, 2.0 mg, 6.0 mg
Tablet, Tablet - Oral, , Oral, Capsule, gelatin coated, Capsule, gelatin coated - Oral, Capsule, Capsule - Oral, Oral; Topical
Insomnia
, 4.0 mg, 2.0 mg, 6.0 mg
Tablet, Tablet - Oral, , Oral, Capsule, gelatin coated, Capsule, gelatin coated - Oral, Capsule, Capsule - Oral, Oral; Topical
Withdrawal From Addictive Substance; Detoxification
, 4.0 mg, 2.0 mg, 6.0 mg
Tablet, Tablet - Oral, , Oral, Capsule, gelatin coated, Capsule, gelatin coated - Oral, Capsule, Capsule - Oral, Oral; Topical
Migraine
, 4.0 mg, 2.0 mg, 6.0 mg
Tablet, Tablet - Oral, , Oral, Capsule, gelatin coated, Capsule, gelatin coated - Oral, Capsule, Capsule - Oral, Oral; Topical
Analgesics
, 4.0 mg, 2.0 mg, 6.0 mg
Tablet, Tablet - Oral, , Oral, Capsule, gelatin coated, Capsule, gelatin coated - Oral, Capsule, Capsule - Oral, Oral; Topical
Epilepsy
, 4.0 mg, 2.0 mg, 6.0 mg
Tablet, Tablet - Oral, , Oral, Capsule, gelatin coated, Capsule, gelatin coated - Oral, Capsule, Capsule - Oral, Oral; Topical
Chronic Pain
, 4.0 mg, 2.0 mg, 6.0 mg
Tablet, Tablet - Oral, , Oral, Capsule, gelatin coated, Capsule, gelatin coated - Oral, Capsule, Capsule - Oral, Oral; Topical
Pain relief
, 4.0 mg, 2.0 mg, 6.0 mg
Tablet, Tablet - Oral, , Oral, Capsule, gelatin coated, Capsule, gelatin coated - Oral, Capsule, Capsule - Oral, Oral; Topical
Low Back Pain
, 4.0 mg, 2.0 mg, 6.0 mg
Tablet, Tablet - Oral, , Oral, Capsule, gelatin coated, Capsule, gelatin coated - Oral, Capsule, Capsule - Oral, Oral; Topical
Headache
, 4.0 mg, 2.0 mg, 6.0 mg
Tablet, Tablet - Oral, , Oral, Capsule, gelatin coated, Capsule, gelatin coated - Oral, Capsule, Capsule - Oral, Oral; Topical
Therapeutic procedure
, 4.0 mg, 2.0 mg, 6.0 mg
Tablet, Tablet - Oral, , Oral, Capsule, gelatin coated, Capsule, gelatin coated - Oral, Capsule, Capsule - Oral, Oral; Topical
Warnings
Zanaflex has four contraindications and should not be administered alongside the ailments noted in the following table.
Zanaflex Contraindications
Condition
Risk Level
Notes
when this drug is needed to maintain basic function, including maintenance of upright posture and balance in locomotion
Do Not Combine
Hypersensitivity
Do Not Combine
Pulse Frequency
Do Not Combine
Pulse Frequency
Do Not Combine
There are 20 known major drug interactions with Zanaflex.
Common Zanaflex Drug Interactions
Drug Name
Risk Level
Description
Acenocoumarol
Major
The metabolism of Acenocoumarol can be decreased when combined with Tizanidine.
Aminophylline
Major
The metabolism of Aminophylline can be decreased when combined with Tizanidine.
Amitraz
Major
The risk or severity of adverse effects can be increased when Tizanidine is combined with Amitraz.
Axitinib
Major
The metabolism of Axitinib can be decreased when combined with Tizanidine.
Azelastine
Major
Tizanidine may increase the central nervous system depressant (CNS depressant) activities of Azelastine.
Zanaflex Toxicity & Overdose Risk
Tizanidine has an LD50 (the amount of a drug needed to cause toxicity in half of the test animals) of 414mg/kg when taken orally by rats and 282mg/kg when taken subcutaneously by rats. In mice, the oral LD50 is 235mg/kg. Animal studies have determined that this drug can cause harm to unborn babies, so it should only be used if the benefits outweigh the risks. It is also likely that tizanidine is excreted in breast milk, and young nursing rats given the drug have shown signs of central nervous system changes. Tizanidine has not been
Zanaflex Novel Uses: Which Conditions Have a Clinical Trial Featuring Zanaflex?
Currently, 389 clinical trials are being conducted to assess the potential of Zanaflex in alleviating Insomnia, Chronic Pain and Epileptic Symptoms.
Condition
Clinical Trials
Trial Phases
Chronic Pain
130 Actively Recruiting
Not Applicable, Phase 4, Phase 2, Phase 3, Early Phase 1, Phase 1
Analgesics
0 Actively Recruiting
Insomnia
0 Actively Recruiting
Withdrawal From Addictive Substance; Detoxification
1 Actively Recruiting
Phase 2, Phase 3
Muscle Spasticity
0 Actively Recruiting
Migraine
51 Actively Recruiting
Phase 4, Not Applicable, Phase 1, Phase 3, Phase 2, Early Phase 1
Headache
0 Actively Recruiting
Muscle Relaxation
0 Actively Recruiting
Pain relief
15 Actively Recruiting
Early Phase 1, Not Applicable, Phase 4, Phase 2, Phase 1
Low Back Pain
0 Actively Recruiting
Therapeutic procedure
0 Actively Recruiting
Analgesics
0 Actively Recruiting
Epilepsy
19 Actively Recruiting
Not Applicable, Phase 2, Phase 3, Early Phase 1, Phase 4, Phase 1
Zanaflex Reviews: What are patients saying about Zanaflex?
5
Patient Review
10/12/2021
Zanaflex for Muscle Spasm
5
Patient Review
10/8/2022
Zanaflex for Muscle Spasms caused by a Spinal Disease
5
Patient Review
10/8/2022
Zanaflex for Muscle Spasms caused by a Spinal Disease
5
Patient Review
10/12/2021
Zanaflex for Muscle Spasm
4.3
Patient Review
2/7/2022
Zanaflex for Muscle Spasm
4.3
Patient Review
2/7/2022
Zanaflex for Muscle Spasm
4
Patient Review
5/1/2022
Zanaflex for Muscle Spasm
4
Patient Review
4/7/2021
Zanaflex for Muscle Spasm
4
Patient Review
5/1/2022
Zanaflex for Muscle Spasm
4
Patient Review
4/7/2021
Zanaflex for Muscle Spasm
3.7
Patient Review
12/14/2021
Zanaflex for Muscle Spasm
3.7
Patient Review
12/14/2021
Zanaflex for Muscle Spasm
2.3
Patient Review
4/24/2021
Zanaflex for Muscle Spasm
2.3
Patient Review
4/24/2021
Zanaflex for Muscle Spasm
1
Patient Review
4/19/2022
Zanaflex for Muscle Spasm
1
Patient Review
2/23/2022
Zanaflex for Muscle Spasms caused by a Spinal Disease
1
Patient Review
2/23/2022
Zanaflex for Muscle Spasms caused by a Spinal Disease
1
Patient Review
4/19/2022
Zanaflex for Muscle Spasm
1
Patient Review
7/25/2021
Zanaflex for Muscle Spasm
1
Patient Review
7/25/2021
Zanaflex for Muscle Spasm
Patient Q&A Section about zanaflex
These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.
What is the drug Zanaflex used for?
"This medication is used to treat muscle spasms caused by certain conditions (such as multiple sclerosis, spinal cord injury). It works by helping to relax the muscles."
Answered by AI
Do Zanaflex make you sleepy?
"This medicine may cause you to feel sleepy, dizzy, or weak. Be sure to take it at a time when you don't have to be alert. Tell your doctor if you experience any unusual side effects while using tizanidine."
Answered by AI
Is Zanaflex and Xanax the same?
"Zanaflex is not a combination of Xanax and Flexeril, despite the similar sounding names. Zanaflex and Flexeril work in similar ways by blocking nerve impulses to the brain, but they are different drugs."
Answered by AI