When tested in volunteers, during the clinical trials, this drug caused a significant decrease in mucus secretions and illness-associated symptoms.

As the cold progresses, the mucus secretions from the sinuses may turn darker and thicker.

Effects of peptides derived from dietary proteins on mucus secretion in rat jejunum.

Expectorants, which help loosen and expel mucus secretions from the airways.

In the case of a cold, the immune system opens up blood vessels through inflammation and also increases mucus secretions.

It makes a respiratory channel leading to the surface and two sanitary channels behind itself, all lined by a mucus secretion.

Excess mucus secretion is produced in the airways and can block the air tubes in the lungs.

An effect of antihistamines is to thicken mucus secretions.

They can also thin mucus secretions in the lungs.

In the pharynx, the food is lubricated by mucus secretions for easier passage.