Amantadine hydrochloride?

What is Amantadine Hydrochloride Used For?

Amantadine hydrochloride is an antiviral medication used to treat and prevent various conditions, including influenza A virus infections, Parkinson's disease, and drug-induced extrapyramidal reactions [1]. It is also used off-label to treat other conditions such as chronic fatigue syndrome, multiple sclerosis, and attention deficit hyperactivity disorder (ADHD).

How Does Amantadine Hydrochloride Work?

Amantadine hydrochloride works by inhibiting the growth of the influenza A virus and disrupting its replication process [2]. It is also believed to have dopaminergic and anticholinergic properties, which help to manage Parkinson's disease symptoms by increasing dopamine levels in the brain.

Side Effects and Risks

Common side effects of amantadine hydrochloride include dizziness, nausea, headache, and dry mouth [3]. Rare but serious side effects include hallucinations, confusion, and seizures. Patients with kidney or liver disease, as well as those taking certain medications, should use amantadine hydrochloride with caution.

Pricing and Availability

The cost of amantadine hydrochloride varies depending on the dose and form of the medication. It is available in both generic and brand-name forms, including Symmetrel and Endantadine [4]. Patients should consult their doctor or pharmacist for information on pricing and availability in their area.

Patent Information

Amantadine hydrochloride was first patented in 1962 by the National Institutes of Health, and its patent has since expired. However, generic versions of the medication may still be protected by patents in certain countries.

Regulation and Approval

Amantadine hydrochloride has been approved by regulatory agencies worldwide, including the US FDA, for use in treating various conditions. Patients should consult their doctor or pharmacist for information on the regulatory status of amantadine hydrochloride in their country.

Sources:

[1] DrugPatentWatch.com - Amantadine hydrochloride patents

[2] Centers for Disease Control and Prevention - Amantadine hydrochloride

[3] Mayo Clinic - Amantadine hydrochloride side effects

[4] Drugs.com - Amantadine hydrochloride pricing and availability