Ammonaps (sodium phenylbutyrate) vs Eril (fasudil hydrochloride)

Ammonaps (sodium phenylbutyrate) vs Eril (fasudil hydrochloride)

Ammonaps (sodium phenylbutyrate) is primarily used as a treatment for urea cycle disorders, which are genetic conditions that affect the body's ability to remove ammonia from the bloodstream. Eril (fasudil hydrochloride), on the other hand, is a vasodilator that is often used to treat cerebral vasospasm, which is a condition that can occur after a subarachnoid hemorrhage (bleeding in the space around the brain). When deciding between these two medications, it is important to consider the specific condition being treated, as they are used for very different medical issues and are not interchangeable.

Difference between Ammonaps and Eril

Metric Ammonaps (sodium phenylbutyrate) Eril (fasudil hydrochloride)
Generic name Sodium phenylbutyrate Fasudil hydrochloride
Indications Urea cycle disorders Cerebral vasospasm
Mechanism of action Converts to phenylacetate which conjugates with glutamine to form phenylacetylglutamine, thereby reducing ammonia levels Rho kinase inhibitor, vasodilator
Brand names Ammonaps, Buphenyl Eril
Administrative route Oral Intravenous, Oral (in some regions)
Side effects Body odor, headache, nausea, vomiting, anorexia Headache, hypotension, dizziness, nausea, tachycardia
Contraindications Hypersensitivity to sodium phenylbutyrate or any component of the formulation Hypersensitivity to fasudil hydrochloride or any component of the formulation
Drug class Urea cycle disorder agent Rho kinase inhibitor
Manufacturer Horizon Pharma Asahi Kasei Pharma

Efficacy

Ammonaps (Sodium Phenylbutyrate) in ALS

Ammonaps, known generically as sodium phenylbutyrate, is a medication traditionally used in the treatment of urea cycle disorders. Its efficacy in Amyotrophic Lateral Sclerosis (ALS) has been explored due to its potential neuroprotective effects. Preclinical studies have suggested that sodium phenylbutyrate may help in reducing neuronal stress and promoting neuronal survival, which are critical factors in the progression of ALS. However, the clinical efficacy of Ammonaps in ALS patients is still under investigation, with clinical trials being necessary to establish its therapeutic potential and appropriate dosing for this specific indication.

Eril (Fasudil Hydrochloride) in ALS

Eril, with the active ingredient fasudil hydrochloride, is a rho-kinase inhibitor that has been primarily used to prevent cerebral vasospasm. Its role in ALS has been studied due to its potential neuroprotective properties and ability to improve blood flow. In ALS, fasudil hydrochloride is thought to exert protective effects on motor neurons and may have anti-inflammatory properties. While preclinical studies have shown promise, the translation of these effects into clinical benefits for ALS patients requires further validation through comprehensive clinical trials.

Clinical Trials and Research

Both Ammonaps and Eril have been the subject of clinical research in the context of ALS. Clinical trials are essential to determine the efficacy of these medications for off-label use in ALS patients. Such trials assess not only the potential benefits in terms of slowing the progression of the disease but also monitor for any adverse effects that may occur due to the medication. The outcomes of these trials are critical for understanding the risk-benefit profile of these drugs in a population that currently has limited treatment options.

Conclusion on Efficacy in ALS

As of the current state of knowledge, the efficacy of Ammonaps (sodium phenylbutyrate) and Eril (fasudil hydrochloride) for the treatment of ALS remains to be fully established. While there is a scientific rationale for their use based on preclinical studies, the evidence from clinical trials is necessary to make informed decisions about their use in clinical practice. Healthcare providers and researchers continue to explore these and other potential treatments to improve the outcomes for patients suffering from ALS.

Regulatory Agency Approvals

Ammonaps
  • European Medical Agency (EMA), European Union
  • Food and Drug Administration (FDA), USA
  • Therapeutic Goods Administration (TGA), Australia
Eril
  • Pharmaceuticals and Medical Devices Agency (PMDA), Japan

Access Ammonaps or Eril today

If Ammonaps or Eril are not approved or available in your country (e.g. due to supply issues), you can access them via Everyone.org.

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