Eli Lilly Warns of Safety Risks in Compounded Tirzepatide Products
Written by Emily J. Thompson, Senior Investment Analyst
Updated: Mar 12 2026
0mins
Should l Buy LLY?
Source: Benzinga
- Safety Risk Warning: Eli Lilly issued a warning regarding compounded tirzepatide products mixed with vitamin B12, as internal testing revealed a new impurity that may pose unknown health risks, emphasizing that the drug has never been studied in combination with vitamin B12, potentially affecting its interaction with GLP-1 and GIP receptors.
- Regulatory Issues with Compounded Drugs: The company noted that pharmacies producing compounded versions are not required to track or report adverse events like FDA-approved manufacturers, which may expose patients to potentially dangerous treatments, especially those obtained through telehealth platforms or medical spas.
- Criticism of Mass Compounding: Lilly reiterated concerns about mass-compounded versions of its tirzepatide medicines, supporting FDA actions to curb the distribution of compounded anti-obesity drugs that violate regulatory standards, arguing that many compounded products are not customized for individual patients.
- Potential Additional Risks: Beyond vitamin B12, Lilly identified other substances mixed with tirzepatide, such as glycine and carnitine, which could introduce untested combinations, and reported additional safety issues including bacterial contamination and elevated endotoxin levels, urging the FDA to consider recalls of compounded products containing untested additives.
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Analyst Views on LLY
Wall Street analysts forecast LLY stock price to rise
20 Analyst Rating
18 Buy
2 Hold
0 Sell
Strong Buy
Current: 954.520
Low
950.00
Averages
1192
High
1500
Current: 954.520
Low
950.00
Averages
1192
High
1500
About LLY
Eli Lilly and Company is a medicine company, which discovers, develops, manufactures, and market products in a single business segment called human pharmaceutical products. The Company manufacture and distribute its products through facilities in the United States, including Puerto Rico, and in Europe and Asia. The Company’s products are sold in approximately 90 countries. Its Cardiometabolic Health products Basaglar; Humalog, Humalog Mix 75/25, Humalog U-100, Humalog U-200, Humalog Mix 50/50, insulin lispro, and others; Humulin, Humulin 70/30, and others; Jardiance; Mounjaro; Trulicity; Zepbound, and others. Its oncology products include Cyramza, Erbitux, Tyvyt, Verzenio, Retevmo, Jaypirca, and others. Its immunology products include Ebglyss, Olumiant, Omvoh, and Taltz. Its neuroscience products include Emgality and Kisunla. Its LillyDirect, a direct-to-patient digital health care platform, provides delivery of select Lilly medicines dispensed by third-party pharmacies to patients.
About the author
Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
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