Dimetapp Paediatric Elixir is contra-indicated in patients sensitive to any of the ingredients and in infants or neonates. It should not be given to patients whose sensitivity to small doses of sympathomimetic substances is manifested by sleeplessness, dizziness, light headaches, weakness, tremulousness or cardiac arrhythmia.
In fact, worrying (or anxiety) can stimulate the release of epinephrine into your system, whereby it will bind with your beta-adrenergic receptors in your liver, causing your blood vessels to constrict and your blood pressure to rise, along with your heart rate (pulse).
Epinephrine is an important cell signaling molecule in the fight or flight response. Also known as adrenaline, epinephrine is an efficient messenger that signals many cell types throughout the body with many effects. In the lungs, epinephrine binds to receptors on smooth muscle cells wrapped around the bronchioles.his increases the rate at which other chemical signals, glucose and oxygen are circulated to the cells that need them. Epinephrine also contracts specific types of muscle cells below the surface of the skin, causing beads of perspiration and raised hairs at the surface.