If you switched from brand to compounded tirzepatide and noticed new injection site reactions, the formulation difference is a likely culprit
Efficacy and Safety of Liraglutide 3.0 mg in Individuals With Overweight or Obesity and Type 2 Diabetes Treated With Basal Insulin: The SCALE Insulin Randomized Controlled Trial
Griauzde DH, Ibrahim AM, Fisher N, Stricklen A, Ross R, Ghaferi AA
GCL is composed of a heavy catalytic subunit (GCLC, MW ~ 73,000) and a light modifier (GCLM, MW ~ 30,000) subunit
Husain SS, Szabo IL, Tamawski AS (2002) NSAID inhibition of GI cancer growth: clinical implications and molecular mechanisms of action

Telehealth red flags for consumers Look for these warning signs, including if a company: makes claims such as the compounded drug is the same as an FDA-approved drug offers medicine at deep discounts or prices that seem too good to be true sends medicine that looks different than what youve previously received at your local pharmacy or was pictured on their website, or arrives in packaging that is broken or damaged or lacks instructions for use does not require a screening and prescription by a licensed doctor before providing medicine does not have a licensed doctor available to answer questions after you receive your medication makes spelling errors on the label or provides incorrect addresses of the pharmacy includes a pharmacy name on the label that you think might be fraudulent Concerns with compounded versions of these drugs A compounded drug might be appropriate if a patients medical need cannot be met by an FDA-approved drug, or the FDA-approved drug is not commercially available
