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Research published in Nature in 2026 identified genetic variants in the GLP1R and GIPR genes that meaningfully predict both weight loss response and side effect profiles
Non-GLP-1 weight loss medications like metformin and bupropion-naltrexone (Contrave) are available as generics and cost $30 to $80/month
Kreisel, World Health Organization, Geneva, Switzerland Dr M
People taking multiple medications alongside semaglutide should discuss potential interactions with their prescriber, particularly if they notice new sensory symptoms after adding or changing other medications
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