A Quincy man has admitted in federal court to injecting clients of his Milton spa with black-market Botox, causing serious medical effects. Rodrigo de Medeiros Siqueira, 33, owner of Rodrigo Beauty at 464 Granite Ave. in Milton, pleaded guilty to one count of misbranding of a drug after shipment in interstate commerce with intent to defraud or mislead, carrying a maximum sentence of three years in prison. Sentencing is scheduled for Aug. 12 before U.S. District Court Judge Richard G. Stearns. The case began on June 1, 2025, when a physician reported to the Massachusetts Department of Public Health a patient suffering from botulism after receiving generic Botox injections at Rodrigo Beauty. Subsequent similar reports emerged. According to a law enforcement affidavit, botched Botox injections can cause iatrogenic botulism, a life-threatening condition with symptoms including blurred or double vision, drooping eyelids, slurred speech, and difficulty swallowing or breathing. When confronted by FDA agents, Medeiros Siqueira claimed he obtained legitimate FDA-approved Botox brand Daxxify from another spa operated by two licensed nurse practitioners. Those nurses denied this, and Revance, Daxxify's manufacturer, reported no record of Medeiros Siqueira. Other FDA-approved botulinum toxin manufacturers also reported no sales to him or Rodrigo Beauty.
Medeiros Siqueira, who is not certified or licensed to perform Botox injections and cannot legally obtain legitimate products, allegedly sourced from less-than-legitimate channels. Investigators noted that alternative products from countries like China and South Korea are often purchased because they are significantly cheaper than FDA-approved products and do not require licensure. Federal authorities urge anyone who believes they received illegal injections from this individual or at his spa to complete a questionnaire on the FDA's website.
Source: Read the original report | Published: May 08, 2026