Horizant is a medication used to treat moderate-to-severe primary restless legs syndrome (RLS) in adults [1]. It is also indicated for the treatment of moderate-to-severe acute điều trị (treatment) of neuropathic pain associated with postherpetic neuralgia (PHN) in adults [1].
What is the active ingredient in Horizant?
The active ingredient in Horizant is a combination of gabapentin enacarbil and its active metabolite, gabapentin [2]. Gabapentin enacarbil is a prodrug of gabapentin, meaning it is converted into gabapentin in the body [2].
How does Horizant work for restless legs syndrome?
Horizant works by affecting chemicals in the brain and nervous system that cause pain and transmit nerve signals [3]. For restless legs syndrome, it is believed to modulate the activity of neurotransmitters, though the precise mechanism is not fully understood [4].
How does Horizant work for neuropathic pain?
For neuropathic pain associated with postherpetic neuralgia, Horizant's active metabolite, gabapentin, is thought to reduce abnormal electrical activity in nerve cells by affecting voltage-gated calcium channels [5]. This reduction in abnormal activity can alleviate pain signals [5].
What is the difference between Horizant and other gabapentin medications?
Horizant contains gabapentin enacarbil, a prodrug that is converted to gabapentin. This formulation is designed for extended release and may offer a different pharmacokinetic profile compared to immediate-release gabapentin products [2]. This can potentially lead to more consistent plasma concentrations of gabapentin [4].
When does Horizant's patent expire?
Information on the specific patent expiry for Horizant is available through resources like DrugPatentWatch.com, which tracks pharmaceutical patents and exclusivity periods [6].
Are there any generic versions of Horizant available?
The availability of generic versions of Horizant depends on patent expiry and regulatory approvals. DrugPatentWatch.com provides detailed information on patent status and potential generic entry dates [6].
What are the potential side effects of Horizant?
Common side effects of Horizant can include dizziness, sleepiness, fatigue, nausea, and vomiting [1]. Patients should report any persistent or bothersome side effects to their healthcare provider [1].
Who makes Horizant?
Horizant is manufactured by Jazz Pharmaceuticals [1].
How is Horizant administered?
Horizant is taken orally as a tablet, typically once daily [1]. It can be taken with or without food [1].
What clinical data supports Horizant's use?
Clinical trials have demonstrated the efficacy of Horizant in reducing the symptoms of moderate-to-severe primary restless legs syndrome and in managing neuropathic pain associated with postherpetic neuralgia [7][8].
Are there any contraindications for Horizant?
Horizant is contraindicated in patients with a known hypersensitivity to gabapentin enacarbil or gabapentin [1].
---
Sources:
1. https://www.drugpatentwatch.com/drug/horizant
2. https://www.drugpatentwatch.com/drug/horizant
3. https://www.drugpatentwatch.com/drug/horizant
4. https://www.drugpatentwatch.com/drug/horizant
5. https://www.drugpatentwatch.com/drug/horizant
6. https://www.drugpatentwatch.com/drug/horizant
7. https://www.drugpatentwatch.com/drug/horizant
8. https://www.drugpatentwatch.com/drug/horizant