US Patent

US8709491 — Composition comprising a mixture of dextro- and levo-amphetamines complexed with ion-exchange resin particles to form drug resin particles

Formulation · Assigned to Neos Therapeutics LP · Expires 2032-06-28 · 6y remaining

Vulnerability score 47/100 Strong — defensible against typical IPR challenges

What this patent protects

This patent protects a composition of dextro- and levo-amphetamines complexed with ion-exchange resin particles to form drug resin particles.

USPTO Abstract

The invention relates to dosage forms that provide prolonged therapy. In particular, the invention relates to dosage forms including various pluralities of drug-containing resin particles. In a particular embodiment, the drug dosage form comprises a mixture of dextro- and levo-amphetamines complexed with ion-exchange resin particles to form drug resin particles. The invention also relates to methods of making these dosage forms and methods of treating using these dosage forms.

Drugs covered by this patent

Patent Metadata

Patent number
US8709491
Jurisdiction
US
Classification
Formulation
Expires
2032-06-28
Drug substance claim
No
Drug product claim
Yes
Assignee
Neos Therapeutics LP
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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