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How a suction cup delivers medications to the bloodstream

Researchers at ETH Zurich have developed a suction cup that allows medications to be absorbed through the mucosal lining of the cheeks. This new approach could spare millions of patients the pain and fear associated with injections.

The suction cup contains active ingredients and can be pressed onto the lining of the check with two fingers. (Graphic: Luo Z et al. 2023, edited)

In brief

  • The suction cup developed by ETH researchers allows for the painless administration of medications that previously could only be injected.
  • It stretches the mucosal lining of the cheek and, in combination with a penetration-​promoting agent, makes this barrier more permeable to medications.
  • The researchers now want to bring their new delivery system to market.

ETH News