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Older-generation compounds have benefited from years of manufacturing optimization and increased competition, leading to much lower market prices

Some patients report worse nausea when injected in evening hours if they then eat dinner

Most patients notice initial appetite suppression within days of their first injection, but measurable weight reduction typically begins in week three to four as the medication accumulates in your system

Last reviewed: May 16, 2026 Last updated: May 16, 2026 Written by: Jay Hastings , CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations

During the forecast period, Wegovy is anticipated to emerge as the fastest-growing brand with a CAGR of 14.1% due to rising applications of the drug for weight loss and long-term management among individuals with weight-related disorders