Duration of action persists for 4–6 h for noncontrolled release formulations while extended release capsules may increase the duration of action to 12 h. Pseudoephedrine has been shown to have a mean elimination half-life of 4–6 h, which is dependent on urine pH. The elimination half-life...
Duration of action persists for 4–6 h for immediate release or 12–24 h for extended release dosage forms. Pseudoephedrine has been shown to have a mean elimination half-life of 4–6 h, which is dependent on urine pH. The elimination half-life is decreased at urine pH less than 6, ...
Oxymetazoline (Afrin) and pseudoephedrine (Sudafed) were compared by rhinomanometric measurements using nasal airflow, a parameter of nasal airway patency, and therefore airway congestion. Oxymetazoline had a more rapid onset and duration of action, greater improvement in airway patency, and longer ...
These pharmacologic agents have a short duration of action ... JL Gilden - 《Primer on the Autonomic Nervous System》 被引量: 0发表: 2004年 Midodrine and Other Sympathomimetics - Primer on the Autonomic Nervous System (Second Edition) - 112 Midodrine, a direct α1 agonist, produces ...
Controlled and uncontrolled clinical trials of cetirizine conducted in the United States and Canada included more than 6000 patients aged 12 years and older, with more than 3900 receiving cetirizine at doses of 5 to 20 mg per day. The duration of treatment ranged from 1 week to 6 months, wi...
Controlled and uncontrolled clinical trials of cetirizine conducted in the United States and Canada included more than 6000 patients aged 12 years and older, with more than 3900 receiving cetirizine at doses of 5 to 20 mg per day. The duration of treatment ranged from 1 week to 6 months, wi...
in the 1920s. Subsequent evolution of pharmaceutical development led to inhalational adrenergic bronchodilators with progressively more β2-specific agonist activity and longer duration of action. Theophylline had been used as a bronchodilator for the relief of acute asthmatic symptoms since the 1930s,...
The pharmacokinetics of loratadine and descarboethoxyloratadine are dose independent over the dose range of 10 to 40 mg and are not significantly altered by the duration of treatment. In vitro studies with human liver microsomes indicate that loratadine is metabolized to descarboethoxyloratadine ...
The pharmacokinetics of loratadine and descarboethoxyloratadine are dose independent over the dose range of 10 to 40 mg and are not significantly altered by the duration of treatment. In vitro studies with human liver microsomes indicate that loratadine is metabolized to descarboethoxyloratadine ...
Active ingredient and duration of action of khat are listed in Table 33.2. View chapterExplore book Phenylpropanolamine David B. Bylund, in xPharm: The Comprehensive Pharmacology Reference, 2007 Basic Chemistry Chemical Structure Structure Comments Because phenylpropanolamine has two asymmetric carbons ...