Epinephrine is traditionally delivered by injection. In August 2024, the FDA approved nasal epinephrine spray. Drug companies continue to seek alternative methods of delivering epinephrine. Recently, one company has developed a sublingual epinephrine strip to treat anaphylaxis in patients weighing more than 30 kg. 

The results of its studies showed that symptoms of anaphylaxis started to resolve within 2 minutes and completely resolved in a median of 12 minutes after sublingual epinephrine strip was administered.

Sublingual epinephrine strips offer several advantages for anaphylaxis patients:

  1. It works as quickly as EpiPen.
  2. It delivers epinephrine in a safe and effective way under a variety of conditions.
  3. It is simple and easy to use. It is placed on the bottom of the tongue, and it begins to dissolve quickly.
  4. It is about the size of a postage stamp and comes in a package that is thinner and smaller than a credit card.
  5. It weighs less than 28 grams.
  6. It can be carried in a pocket or wallet.
  7. It resists exposure to weather such as sunlight or rain.
  8. The administration does not require any water or swallowing.

The Company expects to launch the sublingual epinephrine strip in late 2025 or early 2026, if approved by the FDA.