What Is a Spray Suspension?
Unlike a solution (where the drug is fully dissolved), a suspension contains micro-engineered drug particles dispersed in a liquid vehicle. This distinction matters because it allows higher drug loading, better taste masking, and controlled release kinetics.
The Formulation Challenge
Sildenafil citrate is a crystalline powder with limited aqueous solubility. Creating a stable suspension that delivers consistent doses through a metered pump requires solving three problems simultaneously:
Particle size control, too large and the spray clogs; too small and the suspension becomes a solution with different absorption kinetics
Suspension stability, particles must remain uniformly distributed between uses
Mucosal adhesion, the formulation must coat buccal tissue long enough for absorption
The intersection of particle engineering, polymer science, and mucosal biology is where HEZKUE® was born.
The Mint Matrix
The peppermint flavouring is not purely aesthetic. Menthol acts as a mild permeation enhancer, transiently increasing mucosal blood flow and improving drug uptake. The cooling sensation also provides immediate sensory feedback that the spray has been applied correctly.
Manufacturing Precision
Each HEZKUE® unit is filled using pharmaceutical-grade metered-dose pump technology, the same class of device used in asthma inhalers. Every actuation delivers a volumetrically precise dose, with batch-to-batch variation held below 3%.
Looking Forward
Accelerate Health's platform is not limited to sildenafil. The same spray suspension technology can be adapted to deliver a range of APIs, from analgesics to anxiolytics, wherever rapid buccal absorption offers a clinical advantage over traditional oral dosage forms.