Onpattro

Patisiran · Alnylam Pharmaceuticals, Inc.
PRESCRIPTION ONLY (USA)

Onpattro ingredients

Active ingredientStrength
Patisiran Sodium2 mg/mL

What Onpattro is used for

The FDA lists the approved uses on the official label (below). In the EU, patisiran is approved as Onpattro for:

Onpattro is indicated for the treatment of hereditary transthyretin-mediated amyloidosis (hATTR amyloidosis) in adult patients with stage 1 or stage 2 polyneuropathy.

EU wording from the European Medicines Agency; US approved uses can differ.

Key facts

Brand
Onpattro
Generic name
Patisiran
Made by
Alnylam Pharmaceuticals, Inc.
Forms
Injection, Lipid Complex
Given
Intravenous
Drug class
Small Interfering RNA, Transthyretin-directed RNA Interaction
FDA approval
New drug application (NDA) NDA210922
On the US market since
2018

Official information

Specialist medicine: started and supervised by a specialist doctor or hospital. This page is a plain-language summary of public official information, not medical advice; follow your doctor and the official product information.

Common questions

What is Onpattro?

Onpattro (Patisiran) is a specialist medicine made by Alnylam Pharmaceuticals, Inc., approved by the US FDA.

What are the ingredients of Onpattro?

Onpattro contains Patisiran Sodium (2 mg/mL).

Is Onpattro approved in Europe?

The same active substance is approved in the EU as Onpattro.

From the FDA National Drug Code directory (open.fda.gov, public domain) and the European Medicines Agency medicines list. Page made 5 November 2026 by Satya Babu.

← All specialty medicines, USA

For information only, not medical advice. This page is a plain-language summary written from standard prescribing information and the public guides linked below. Brands sometimes change their formula, so always check the composition printed on the pack. Doses here are typical adult doses; yours may differ. Do not start, stop or change a medicine without your doctor or pharmacist, and keep all medicines away from children. In an emergency, call 112 (India) or your local emergency number.