Starting Wainua (eplontersen)Your first 90 days with hereditary ATTR amyloidosis with polyneuropathy: the steps, the dates and who to call
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How you take it
One shot under the skin once a month, on the same day each month. You or a caregiver can give it with the autoinjector pen after training. The label also advises a daily vitamin A supplement at the recommended amount, and no more.
Before your first dose
- Your neurologist's office faxes an enrollment form to AstraZeneca Access 360, the drugmaker's program. It checks your insurance and then follows the approval with your plan.
- Your insurance plan has to approve the medicine before the pharmacy ships it. If the approval is delayed, your doctor can ask for a free limited supply for eligible patients.
- Find out if you were prescribed the autoinjector pen or the prefilled syringe. Only a nurse, doctor or other healthcare provider may give the syringe.
- A specialty pharmacy calls to set up delivery of the autoinjector, which arrives in a cooler. AstraZeneca says a healthcare provider gives the syringe at an office or an injection center.
- Your healthcare provider shows you or your caregiver how to use the autoinjector the first time.
- Ask your neurologist which vitamin A supplement to take, how much, and when to start. The label says not to take more than the recommended amount.
- Tell your healthcare provider about every medicine, vitamin and supplement you take, especially vitamin A or beta-carotene.
- Tell your healthcare provider if you are pregnant, plan to become pregnant, or are breastfeeding.
- Make room in the refrigerator, where Wainua is kept in its carton. It can stay at room temperature, no warmer than 86 degrees Fahrenheit, for up to 6 weeks if needed. The label says never to freeze it or expose it to heat.
- Questions about insurance or cost go to 1-844-292-4682, Monday through Friday, 8 AM to 6 PM ET.
The first 90 days
- About 2 weeks beforeEnrollment form faxed, then the insurance approval
- After the formBenefits check and prior authorization
- Week beforeThe specialty pharmacy calls to set up delivery
- Days beforeThe carton arrives cold
- Day 1Dose 1, one 45mg injection
- OngoingDaily vitamin A, at the recommended amount
- Days afterThe injection site
- Before each monthly dose, then every 30 daysYour next carton, which holds one dose
- 1 month after dose 1, then every 30 daysSecond shot, 1 month after the first, then once a month
Trial Friend, trialfriend.com. From the Wainua FDA label dated April 15, 2026 and the drugmaker's program, checked November 12, 2026. Not medical advice: Trial Friend is not a medical provider, and your doctor decides your dose and tests.