{"id":254,"date":"2023-09-06T15:51:51","date_gmt":"2023-09-06T15:51:51","guid":{"rendered":"https:\/\/www.merckconnect.com\/winrevair\/?page_id=254"},"modified":"2026-04-02T11:54:12","modified_gmt":"2026-04-02T11:54:12","slug":"frequently-asked-questions","status":"publish","type":"page","link":"https:\/\/www.merckconnect.com\/winrevair\/frequently-asked-questions\/","title":{"rendered":"FAQ"},"content":{"rendered":"<link rel='stylesheet' id='vivid360-spacer-css-css' href='https:\/\/www.merckconnect.com\/winrevair\/wp-content\/themes\/cex-wpvip-mhh-merck-vivid360-theme-1-12\/blocks\/spacer\/css\/style.min.css?ver=1766071753' media='all' \/>\n\n<div style=\"background-color:transparent;height:8px\" class=\"wp-block-vivid360-spacer vivid360-spacer spacer-8\"><\/div>\n\n\n\n<div class=\"wp-block-columns mb-0 is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70px\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\"><link rel='stylesheet' id='vivid360-heading-css-css' href='https:\/\/www.merckconnect.com\/winrevair\/wp-content\/themes\/cex-wpvip-mhh-merck-vivid360-theme-1-12\/blocks\/heading\/css\/style.min.css?ver=1766071753' media='all' \/>\n\n<div class=\"vivid360-heading\" id=\"a515e9c5c-b15f-44bf-b885-0c2f82357b1d\"><h1 class=\"has-primary-color content-width fontWeightBold mb-0\" style=\"--desktopFontSize:30px;--tabletFontSize:24px;--mobileFontSize:24px;--desktopLineHeightSize:45px;--tabletLineHeightSize:36px;--mobileLineHeightSize:\" id=\"\">Frequently asked questions for WINREVAIR<sup>TM<\/sup> (sotatercept-csrk)<\/h1><\/div>\n\n\n\n<div style=\"background-color:transparent;--desktop-spacer:16px;--tablet-spacer:8px;--mobile-spacer:8px\" class=\"wp-block-vivid360-spacer vivid360-spacer-desktop vivid360-spacer-tablet vivid360-spacer-mobile\"><\/div>\n\n\n\n<div style=\"background-color:transparent;--desktop-spacer:2px;--tablet-spacer:8px;--mobile-spacer:8px\" class=\"wp-block-vivid360-spacer vivid360-spacer-desktop vivid360-spacer-tablet vivid360-spacer-mobile\"><\/div>\n\n\n\n<div class=\"paragraph-wrapper\"><div class=\"_b36f1922-59c7-47bd-868b-80514f005bda \" id=\"\"><p class=\"has-dark-text-color has-text-color has-regular-font-size\">For answers to questions you may have, select any of the topics below. To see a complete list of Q&amp;As, scroll down.<\/p><\/div><\/div>\n\n\n\n<div style=\"background-color:transparent;--desktop-spacer:36px;--tablet-spacer:36px;--mobile-spacer:36px\" class=\"wp-block-vivid360-spacer vivid360-spacer-desktop vivid360-spacer-tablet vivid360-spacer-mobile\"><\/div>\n\n\n<link rel='stylesheet' id='vivid360-accordion-css-css' href='https:\/\/www.merckconnect.com\/winrevair\/wp-content\/themes\/cex-wpvip-mhh-merck-vivid360-theme-1-12\/blocks\/accordion\/css\/style.min.css?ver=1766071753' media='all' \/>\n\n<div style=\"border-width:1px 0;border-style:solid\" class=\"wp-block-vivid360-accordion has-medium-gray-border-color full-page-width faq-accordion\"><details class=\"vivid360-block-accordion-details\"><div class=\"summaryCustomColor\" id=\"summaryOpenBgClass\">default-sum-open-background-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseBgClass\">default-sum-close-background-color<\/div><div class=\"summaryCustomColor\" id=\"openCloseAccordionTitle\">false<\/div><div class=\"summaryCustomColor\" id=\"summaryOpenHoverColorClass\">default-sum-open-hover-color<\/div><div class=\"summaryCustomColor\" id=\"summaryOpenFocusColorClass\">default-sum-open-focus-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseFocusColorClass\">default-sum-close-focus-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseHoverColorClass\">.default-sum-close-hover-color<\/div><summary class=\"vivid360-block-accordion-title-section  \n\t\t\t\tdefault-sum-close-background-color\" data-design-category=\"accordion\" aria-labelledby=\"vivid360-block-accordion-title-dddb18f5-8d2c-4ab2-8766-facf6878d448\"><p class=\"vivid360-block-accordion-title has-primary-headline-color\" id=\"vivid360-block-accordion-title-dddb18f5-8d2c-4ab2-8766-facf6878d448\"><strong>What is the indication for WINREVAIR?<\/strong><\/p><\/summary><div class=\"vivid360-block-accordion-text default-description-background-color\"><span class=\"vivid360-block-accordion-desc has-regular-font-size\">WINREVAIR is an activin signaling inhibitor indicated for the treatment of adults with pulmonary arterial hypertension (PAH, Group 1 pulmonary hypertension) to improve exercise capacity and World Health Organization (WHO) functional class (FC), and reduce the risk of clinical worsening events including hospitalization for PAH, lung transplantation and death.<\/span><\/div><\/details><\/div>\n\n\n\n<div style=\"border-width:1px 0;border-style:solid\" class=\"wp-block-vivid360-accordion has-medium-gray-border-color full-page-width faq-accordion\"><details class=\"vivid360-block-accordion-details\"><div class=\"summaryCustomColor\" id=\"summaryOpenBgClass\">default-sum-open-background-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseBgClass\">default-sum-close-background-color<\/div><div class=\"summaryCustomColor\" id=\"openCloseAccordionTitle\">false<\/div><div class=\"summaryCustomColor\" id=\"summaryOpenHoverColorClass\">default-sum-open-hover-color<\/div><div class=\"summaryCustomColor\" id=\"summaryOpenFocusColorClass\">default-sum-open-focus-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseFocusColorClass\">default-sum-close-focus-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseHoverColorClass\">.default-sum-close-hover-color<\/div><summary class=\"vivid360-block-accordion-title-section  \n\t\t\t\tdefault-sum-close-background-color\" data-design-category=\"accordion\" aria-labelledby=\"vivid360-block-accordion-title-882f0c8e-37a3-4a55-9a6f-a31fecbbca46\"><p class=\"vivid360-block-accordion-title has-primary-headline-color\" id=\"vivid360-block-accordion-title-882f0c8e-37a3-4a55-9a6f-a31fecbbca46\"><strong>What is the recommended dosage<\/strong> <strong>for WINREVAIR?<\/strong><\/p><\/summary><div class=\"vivid360-block-accordion-text default-description-background-color\"><span class=\"vivid360-block-accordion-desc has-dark-text-internal-color has-regular-font-size\">For more information about Dosing and Preparation and Administration of WINREVAIR, use the following links:<\/span>\n<div style=\"background-color:transparent;height:16px\" class=\"wp-block-vivid360-spacer vivid360-spacer spacer-16\"><\/div>\n\n\n<link rel='stylesheet' id='vivid360-list-css-css' href='https:\/\/www.merckconnect.com\/winrevair\/wp-content\/themes\/cex-wpvip-mhh-merck-vivid360-theme-1-12\/blocks\/list\/css\/style.min.css?ver=1766071753' media='all' \/>\n\n<div class=\"vivid-block-list content-width default-list block-f88fc8d7-b454-419c-8c99-facf31443146 has-regular-font-size\" data-image=\"\" data-image-mobile=\"\" data-image-all=\"\" data-image-all-mobile=\"\" data-icon-color=\"#333\" data-text-color=\"#333333\" data-client-id=\"block-f88fc8d7-b454-419c-8c99-facf31443146\"><ul class=\"first-level\"><li><a href=\"https:\/\/www.merckconnect.com\/winrevair\/dosage\/\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-dark-text-color\">Dosage and administration for WINREVAIR<\/mark><\/a><\/li><\/ul><\/div>\n\n\n\n<div style=\"background-color:transparent;height:16px\" class=\"wp-block-vivid360-spacer vivid360-spacer spacer-16\"><\/div>\n\n\n\n<div class=\"vivid-block-list content-width default-list block-ede5ea28-711c-4995-a255-907b5295ccb6 has-regular-font-size\" data-image=\"\" data-image-mobile=\"\" data-image-all=\"\" data-image-all-mobile=\"\" data-icon-color=\"#333\" data-text-color=\"#333333\" data-client-id=\"block-ede5ea28-711c-4995-a255-907b5295ccb6\"><ul class=\"first-level\"><li><a href=\"https:\/\/www.merckconnect.com\/winrevair\/preparation-administration\/\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-dark-text-color\">Preparation and administration for WINREVAIR<\/mark><\/a><\/li><\/ul><\/div>\n<\/div><\/details><\/div>\n\n\n\n<div style=\"border-width:1px 0;border-style:solid\" class=\"wp-block-vivid360-accordion has-medium-gray-border-color full-page-width faq-accordion\"><details class=\"vivid360-block-accordion-details\"><div class=\"summaryCustomColor\" id=\"summaryOpenBgClass\">default-sum-open-background-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseBgClass\">default-sum-close-background-color<\/div><div class=\"summaryCustomColor\" id=\"openCloseAccordionTitle\">false<\/div><div class=\"summaryCustomColor\" id=\"summaryOpenHoverColorClass\">default-sum-open-hover-color<\/div><div class=\"summaryCustomColor\" id=\"summaryOpenFocusColorClass\">default-sum-open-focus-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseFocusColorClass\">default-sum-close-focus-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseHoverColorClass\">.default-sum-close-hover-color<\/div><summary class=\"vivid360-block-accordion-title-section  \n\t\t\t\tdefault-sum-close-background-color\" data-design-category=\"accordion\" aria-labelledby=\"vivid360-block-accordion-title-377eb7c7-43a4-4555-8189-13f44f63a062\"><p class=\"vivid360-block-accordion-title has-primary-headline-color\" id=\"vivid360-block-accordion-title-377eb7c7-43a4-4555-8189-13f44f63a062\"><strong>What is the Selected Safety Information for WINREVAIR?<\/strong><\/p><\/summary><div class=\"vivid360-block-accordion-text default-description-background-color\">\n<p class=\"has-dark-text-color has-text-color has-link-color wp-elements-673f1b34f54fca873a1e5df7fb80f846\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-secondary-2-color\">Erythrocytosis:<\/mark><\/strong>&nbsp;WINREVAIR may increase hemoglobin (Hgb). Severe erythrocytosis may increase the risk of thromboembolic events or hyperviscosity syndrome. Monitor Hgb before each dose for the first 5 doses, or longer if values are unstable, and periodically thereafter, to determine if dose adjustments are required.<\/p>\n\n\n\n<div style=\"background-color:transparent;height:8px\" class=\"wp-block-vivid360-spacer vivid360-spacer spacer-8\"><\/div>\n\n\n\n<p class=\"has-dark-text-color has-text-color has-link-color wp-elements-e3185aa9bfe2d2ea824a8837c593fd4e\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-secondary-2-color\">Severe Thrombocytopenia:<\/mark><\/strong>&nbsp;WINREVAIR may decrease platelet count. Severe thrombocytopenia may increase the risk of bleeding. Thrombocytopenia occurred more frequently in patients also receiving prostacyclin infusion. Do not initiate treatment if platelet count is &lt;50,000\/mm<sup>3<\/sup>. Monitor platelets before each dose for the first 5 doses, or longer if values are unstable, and periodically thereafter to determine whether dose adjustments are required.<\/p>\n\n\n\n<div style=\"background-color:transparent;height:8px\" class=\"wp-block-vivid360-spacer vivid360-spacer spacer-8\"><\/div>\n\n\n\n<p class=\"has-dark-text-color has-text-color has-link-color wp-elements-da65c7b4dff1a88da594a6f7a4b3a180\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-secondary-2-color\">Serious Bleeding:<\/mark><\/strong>&nbsp;In clinical studies, serious bleeding (e.g., gastrointestinal, intracranial hemorrhage) was reported in 4% vs 1% (STELLAR) and 7% vs 5% (ZENITH) of patients taking WINREVAIR vs placebo, respectively. Patients with serious bleeding were more likely to be on prostacyclin background therapy and\/or antithrombotic agents, or have low platelet counts. Advise patients about signs and symptoms of blood loss. Do not administer WINREVAIR if the patient is experiencing serious bleeding.<\/p>\n\n\n\n<div style=\"background-color:transparent;height:8px\" class=\"wp-block-vivid360-spacer vivid360-spacer spacer-8\"><\/div>\n\n\n\n<p class=\"has-dark-text-color has-text-color has-link-color wp-elements-398ce0098ba1e882dfef971d50b8d86c\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-secondary-2-color\">Embryo-Fetal Toxicity:<\/mark><\/strong>&nbsp;WINREVAIR may cause fetal harm when administered to a pregnant woman. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use an effective method of contraception during treatment with WINREVAIR and for at least 4 months after the final dose. Pregnancy testing is recommended for females of reproductive potential before starting WINREVAIR treatment.<\/p>\n\n\n\n<div style=\"background-color:transparent;height:8px\" class=\"wp-block-vivid360-spacer vivid360-spacer spacer-8\"><\/div>\n\n\n\n<p class=\"has-dark-text-color has-text-color has-link-color wp-elements-4b2618a0ecac68507dd401b6655af351\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-secondary-2-color\">Impaired Fertility:<\/mark><\/strong>&nbsp;Based on findings in animals, WINREVAIR may impair female and male fertility. Advise patients on the potential effects on fertility.<\/p>\n\n\n\n<div style=\"background-color:transparent;height:8px\" class=\"wp-block-vivid360-spacer vivid360-spacer spacer-8\"><\/div>\n\n\n\n<p class=\"has-dark-text-color has-text-color has-link-color wp-elements-73de512b03c017c839a6f9975601a2e4\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-secondary-2-color\">Adverse Reactions:<\/mark><\/strong> The most common adverse reactions (\u226510% for WINREVAIR and at least 5% more than placebo) occurring in the STELLAR phase 3 clinical trial were headache (24.5% vs 17.5%), epistaxis (22.1% vs 1.9%), rash (20.2% vs 8.1%), telangiectasia (16.6% vs 4.4%), diarrhea (15.3% vs 10.0%), dizziness (14.7% vs 6.3%), and erythema (13.5% vs 3.1%). The most common adverse reactions in the ZENITH trial were infections (67.4% vs 44.2%), epistaxis (45.3% vs 9.3%), diarrhea (<span class=\"no-wrap-text\">25.6%<\/span> vs 17.4%), telangiectasia (25.6% vs 3.5%), increased hemoglobin (15.1% vs 1.2%), rash (10.5% vs 4.7%), erythema (10.5% vs 3.5%), and gingival bleeding (10.5% vs 2.3%).<\/p>\n\n\n\n<div style=\"background-color:transparent;height:8px\" class=\"wp-block-vivid360-spacer vivid360-spacer spacer-8\"><\/div>\n\n\n\n<p class=\"has-dark-text-color has-text-color has-link-color wp-elements-5691b155037d97531c7139abe0aa7f1d\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-secondary-2-color\">Lactation:<\/mark><\/strong>&nbsp;Because of the potential for serious adverse reactions in the breastfed child, advise patients that breastfeeding is not recommended during treatment with WINREVAIR, and for 4 months after the final dose.<\/p>\n\n\n\n<div style=\"background-color:transparent;height:8px\" class=\"wp-block-vivid360-spacer vivid360-spacer spacer-8\"><\/div>\n\n\n\n<p class=\"has-dark-text-color has-text-color has-link-color wp-elements-f301e365073f28ced55514b3396893d1\"><strong>Before prescribing WINREVAIR, please read the accompanying <a aria-label=\"#\" href=\"https:\/\/www.merck.com\/product\/usa\/pi_circulars\/w\/winrevair\/winrevair_pi.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-primary-color\">Prescribing Information<\/mark><\/a>. The <a aria-label=\"#\" href=\"https:\/\/www.merck.com\/product\/usa\/pi_circulars\/w\/winrevair\/winrevair_ppi.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-primary-color\">Patient Information<\/mark><\/a> and <a aria-label=\"#\" href=\"https:\/\/www.merck.com\/product\/usa\/pi_circulars\/w\/winrevair\/winrevair_ifu_1-vial_2-vial_kits.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-primary-color\">Instructions for Use (1-vial kit, 2-vial kit)<\/mark><\/a> also are available.<\/strong><\/p>\n<\/div><\/details><\/div>\n\n\n\n<div style=\"border-width:1px 0;border-style:solid\" class=\"wp-block-vivid360-accordion has-medium-gray-border-color full-page-width faq-accordion\"><details class=\"vivid360-block-accordion-details\"><div class=\"summaryCustomColor\" id=\"summaryOpenBgClass\">default-sum-open-background-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseBgClass\">default-sum-close-background-color<\/div><div class=\"summaryCustomColor\" id=\"openCloseAccordionTitle\">false<\/div><div class=\"summaryCustomColor\" id=\"summaryOpenHoverColorClass\">default-sum-open-hover-color<\/div><div class=\"summaryCustomColor\" id=\"summaryOpenFocusColorClass\">default-sum-open-focus-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseFocusColorClass\">default-sum-close-focus-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseHoverColorClass\">.default-sum-close-hover-color<\/div><summary class=\"vivid360-block-accordion-title-section  \n\t\t\t\tdefault-sum-close-background-color\" data-design-category=\"accordion\" aria-labelledby=\"vivid360-block-accordion-title-d36e23a1-a20f-45d0-bbd9-129249b04f0e\"><p class=\"vivid360-block-accordion-title has-primary-headline-color\" id=\"vivid360-block-accordion-title-d36e23a1-a20f-45d0-bbd9-129249b04f0e\"><strong>Are there Specialty Pharmacies that can dispense WINREVAIR?<\/strong><\/p><\/summary><div class=\"vivid360-block-accordion-text default-description-background-color\"><span class=\"vivid360-block-accordion-desc has-dark-text-internal-color has-regular-font-size\">Merck uses a limited Specialty Pharmacy network for WINREVAIR: CVS Specialty Pharmacy, and Accredo Health Group, Inc.<\/span>\n<div style=\"background-color:transparent;height:16px\" class=\"wp-block-vivid360-spacer vivid360-spacer spacer-16\"><\/div>\n\n\n\n<div class=\"vivid-block-list content-width default-list block-d6480b2a-0734-4301-89bc-3d24e316f263 has-regular-font-size\" data-image=\"\" data-image-mobile=\"\" data-image-all=\"\" data-image-all-mobile=\"\" data-icon-color=\"#333\" data-text-color=\"#333333\" data-client-id=\"block-d6480b2a-0734-4301-89bc-3d24e316f263\"><ul class=\"first-level\"><li>Accredo Health Group, Inc.<br>Phone: 866-344-4874<br>Website: accredo.com<\/li><\/ul><\/div>\n\n\n\n<div style=\"background-color:transparent;height:16px\" class=\"wp-block-vivid360-spacer vivid360-spacer spacer-16\"><\/div>\n\n\n\n<div class=\"vivid-block-list content-width default-list block-6117dc57-6bb1-4444-933d-caf6a080e3a4 has-regular-font-size\" data-image=\"\" data-image-mobile=\"\" data-image-all=\"\" data-image-all-mobile=\"\" data-icon-color=\"#333\" data-text-color=\"#333333\" data-client-id=\"block-6117dc57-6bb1-4444-933d-caf6a080e3a4\"><ul class=\"first-level\"><li>CVS Specialty Pharmacy<br>Phone: 877-242-2738<br>Website: cvsspecialty.com<\/li><\/ul><\/div>\n\n\n\n<div style=\"background-color:transparent;height:8px\" class=\"wp-block-vivid360-spacer vivid360-spacer spacer-8\"><\/div>\n\n\n\n<p>Merck is not affiliated with and does not endorse one Speciality Pharmacy over another.<\/p>\n<\/div><\/details><\/div>\n\n\n\n<div style=\"border-width:1px 0;border-style:solid\" class=\"wp-block-vivid360-accordion has-medium-gray-border-color full-page-width faq-accordion\"><details class=\"vivid360-block-accordion-details\"><div class=\"summaryCustomColor\" id=\"summaryOpenBgClass\">default-sum-open-background-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseBgClass\">default-sum-close-background-color<\/div><div class=\"summaryCustomColor\" id=\"openCloseAccordionTitle\">false<\/div><div class=\"summaryCustomColor\" id=\"summaryOpenHoverColorClass\">default-sum-open-hover-color<\/div><div class=\"summaryCustomColor\" id=\"summaryOpenFocusColorClass\">default-sum-open-focus-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseFocusColorClass\">default-sum-close-focus-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseHoverColorClass\">.default-sum-close-hover-color<\/div><summary class=\"vivid360-block-accordion-title-section  \n\t\t\t\tdefault-sum-close-background-color\" data-design-category=\"accordion\" aria-labelledby=\"vivid360-block-accordion-title-c06cf25e-4242-4cf7-90f6-ec6ea8f6bdbe\"><p class=\"vivid360-block-accordion-title has-primary-headline-color\" id=\"vivid360-block-accordion-title-c06cf25e-4242-4cf7-90f6-ec6ea8f6bdbe\"><strong>How can I report an exposure in pregnancy or lactation?<\/strong><\/p><\/summary><div class=\"vivid360-block-accordion-text default-description-background-color\"><span class=\"vivid360-block-accordion-desc has-dark-text-internal-color has-regular-font-size\">Report exposure during pregnancy or lactation to the Merck Sharp &amp; Dohme, LLC Adverse Event reporting line at <span class=\"no-wrap-text\">1-877-888-4231.<\/span><\/span><\/div><\/details><\/div>\n\n\n\n<div style=\"border-width:1px 0;border-style:solid\" class=\"wp-block-vivid360-accordion has-medium-gray-border-color full-page-width faq-accordion\"><details class=\"vivid360-block-accordion-details\"><div class=\"summaryCustomColor\" id=\"summaryOpenBgClass\">default-sum-open-background-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseBgClass\">default-sum-close-background-color<\/div><div class=\"summaryCustomColor\" id=\"openCloseAccordionTitle\">false<\/div><div class=\"summaryCustomColor\" id=\"summaryOpenHoverColorClass\">default-sum-open-hover-color<\/div><div class=\"summaryCustomColor\" id=\"summaryOpenFocusColorClass\">default-sum-open-focus-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseFocusColorClass\">default-sum-close-focus-color<\/div><div class=\"summaryCustomColor\" id=\"summaryCloseHoverColorClass\">.default-sum-close-hover-color<\/div><summary class=\"vivid360-block-accordion-title-section  \n\t\t\t\tdefault-sum-close-background-color\" data-design-category=\"accordion\" aria-labelledby=\"vivid360-block-accordion-title-8f2f75b5-94f2-4787-853f-c556810fba08\"><p class=\"vivid360-block-accordion-title has-primary-headline-color\" id=\"vivid360-block-accordion-title-8f2f75b5-94f2-4787-853f-c556810fba08\"><strong>How can I connect with a Merck Rare Disease Account Specialist?<\/strong><\/p><\/summary><div class=\"vivid360-block-accordion-text default-description-background-color\"><span class=\"vivid360-block-accordion-desc has-dark-text-internal-color has-regular-font-size\">Please contact the Merck National Service Center at 1-855-4WINREVAIR (1-855-494-6738) to request follow-up from a Merck Rare Disease Account Specialist.<\/span><\/div><\/details><\/div>\n\n\n\n<div style=\"background-color:transparent;height:32px\" class=\"wp-block-vivid360-spacer vivid360-spacer spacer-32\"><\/div>\n\n\n\n<div style=\"background-color:transparent;--desktop-spacer:2px;--tablet-spacer:8px;--mobile-spacer:8px\" class=\"wp-block-vivid360-spacer vivid360-spacer-desktop vivid360-spacer-tablet vivid360-spacer-mobile\"><\/div>\n\n\n\n<div class=\"wp-block-columns mb-0 is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"vivid360-heading\" id=\"ad4199062-951c-43e1-92e8-d787eb9c1d63\"><h6 class=\"has-primary-color has-text-align-left has-error-light-bgr-background-color content-width fontWeightRegular padding-top-bottom10 mt-0 mb-0 padding-left-right15\" style=\"--desktopFontSize:16;--tabletFontSize:16;--mobileFontSize:16;--desktopLineHeightSize:24px;--tabletLineHeightSize:24px;--mobileLineHeightSize:;--tabletAlign:left;--mobileAlign:left\" id=\"\"><strong>Report exposure during pregnancy or lactation to the <span class=\"no-wrap-text\">Merck Sharp &amp; Dohme<\/span> LLC Adverse Event reporting line at <span class=\"no-wrap-text\">1-877-888-4231<\/span><\/strong><\/h6><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70px\"><\/div>\n<\/div>\n\n\n\n<div style=\"background-color:transparent;--desktop-spacer:32px;--tablet-spacer:0px;--mobile-spacer:0px\" class=\"wp-block-vivid360-spacer vivid360-spacer-desktop vivid360-spacer-tablet vivid360-spacer-mobile\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>For answers to questions you may have, select any of the topics below. To see a complete list of Q&amp;As, scroll down.<\/p>\n","protected":false},"author":446,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_trash_the_other_posts":false,"editor_notices":[],"footnotes":""},"ga4_page_audience":[911],"ga4_page_birn_id":[],"ga4_page_branding":[271],"ga4_page_businessunit":[278],"ga4_page_campaign":[],"ga4_page_content_purpose":[318],"ga4_page_customer_journey_stage":[338],"ga4_page_customer_specialty":[396],"ga4_page_experience":[],"ga4_page_indication":[507],"ga4_page_material_intent":[526],"ga4_page_product":[941],"ga4_page_region":[814],"ga4_page_therapeuticarea":[856],"user_role":[],"mhh-area-of-interest":[],"access":[],"user_status":[],"class_list":["post-254","page","type-page","status-publish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Frequently Asked Questions for 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