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Examples of sympathomimetic effects include increases in heart rate, force of cardiac contraction, and blood pressure. [1] The primary endogenous agonists of the sympathetic nervous system are the catecholamines (i.e., epinephrine [adrenaline], norepinephrine [noradrenaline], and dopamine ), which function as both neurotransmitters and hormones .
Side effects of mephentermine include dry mouth, sedation, reflex bradycardia, arrhythmias, and hypertension. [4] Mephentermine induces the release of norepinephrine and dopamine and is described as an indirectly acting sympathomimetic and psychostimulant . [ 4 ]
Patients taking MAO inhibitors can experience a severe hypertensive crisis if given a sympathomimetic drug such as naphazoline HCl; Drug interactions can occur with anaesthetics that sensitize the myocardium to sympathomimetics (e.g. cyclopropane or halothane cautiously) Exercise caution when applying prior to use of phenylephrine.
Phenylpropanolamine (PPA), sold under many brand names, is a sympathomimetic agent used as a decongestant and appetite suppressant. [9] [1] [10] [11] It was once common in prescription and over-the-counter cough and cold preparations. The medication is taken orally. [4] [12] Side effects of phenylpropanolamine include increased heart rate and ...
Autonomic drugs are substances that can either inhibit or enhance the functions of the parasympathetic and sympathetic nervous systems. This type of drug can be used to treat a wide range of diseases an disorders, including glaucoma, asthma, and disorders of the urinary, gastrointestinal and circulatory systems.
The most common side effect is eye irritation felt as stinging or burning, which occurs in up to a third of patients. Blepharoconjunctivitis occurs in up to 5% of patients. Rarer adverse effects include keratitis, edema and increased lacrimation. [3] [4] Allergies are rare, but seem to be more common than under the related drug timolol. [2]
Cialis Drug Interactions. Tadalafil side effects aren’t the only concern when taking this drug. As mentioned, Cialis can interact with other PDE5 inhibitors for ED, as well as medications ...
Synephrines are direct sympathomimetic drugs while the ephedrines are both direct and indirect sympathomimetics. One of the main reasons for these differential effects is the obviously increased polarity of the hydroxy-substituted phenyl ethyl amines which renders them less able to penetrate the blood-brain barrier as illustrated in the ...