Phenylephrine is α1-adrenergic receptor agonist and is used in decongestant in cough syrups, in eye drops to dilate pupil and in as vasopressor to increase blood pressure in some patients with hypotension. Phenylephrine does not cause the release of endogenous noradrenaline, so side effects like insomnia, anxiety, CNS stimulation, irritability and restlessness are less likely to occur.
Pseudoephedrine is a sympathomimetic amine and also use as decongestant. Pseudoephedrine causes the release of endogenous noradrenaline, so side effects like insomnia, anxiety, CNS stimulation, irritability and restlessness are likely to occur.
Pseudoephedrine is being replaced by Phenylephrine due to its popularity as a precursor in the illicit synthesis of methamphetamine.
Pseudoephedrine is a sympathomimetic amine and also use as decongestant. Pseudoephedrine causes the release of endogenous noradrenaline, so side effects like insomnia, anxiety, CNS stimulation, irritability and restlessness are likely to occur.
Pseudoephedrine is being replaced by Phenylephrine due to its popularity as a precursor in the illicit synthesis of methamphetamine.
