Search results
Results from the WOW.Com Content Network
Theophylline, also known as 1,3-dimethylxanthine, is a drug that inhibits phosphodiesterase and blocks adenosine receptors. [1] It is used to treat chronic obstructive pulmonary disease (COPD) and asthma . [ 2 ]
It was a combination of theophylline, ephedra, [1] and hydroxyzine, and taken by mouth. [ 2 ] [ 3 ] It is no longer manufactured in the US due to approval of ephedra being withdrawn by the FDA . [ citation needed ]
Paraxanthine, also known as 1,7-dimethylxanthine, is an isomer of theophylline and theobromine, two well-known stimulants found in coffee, tea, and chocolate mainly in the form of caffeine. It is a member of the xanthine family of alkaloids, which includes theophylline, theobromine and caffeine.
Theophylline is a non-selective adenosine receptor antagonist. It is also an anti-asthmatic agent and a demethylated metabolite of caffeine. Small open-label trials suggest that theophylline has anti-parkinsonian benefit but a double-blind, placebo-controlled trial did not clearly establish relief from symptoms. [3]
A combination of theophylline, ephedrine, and hydroxyzine has been marketed under the brand name Marax among others as well. [16] [17] [18] Combinations of theophylline, ephedrine, and a barbiturate were later phased out in favor of combinations of theophylline and ephedrine alone (e.g., brand name Franol).
Because one of the active ingredients in Tedral is theophylline, Tedral is contraindicated if the patient has: [3] [6] Hypersensitivity to xanthine derivatives; Coronary artery disease (cardiac stimulating effects of Theophylline may prove harmful) Peptic ulcer; Concomitant use with ephedrine in children.
Modern silhouettes, asymmetric styles, and unexpected diamond shapes bring a fresh take on tradition. Key features: Open bands or non-traditional shapes. Mixed metal designs for a unique contrast.
An adenosine receptor antagonist is a drug which acts as an antagonist of one or more of the adenosine receptors. [1] The best known are xanthines and their derivatives (natural: caffeine, [2] theophylline, [3] and theobromine; and synthetic: PSB-1901 [4]), but there are also non-xanthine representatives (e.g. ISAM-140, [5] ISAM-R316, [6] etrumadenant, [7] and AZD-4635 [8])