If you don’t take theophylline exactly as prescribed, it could put you at risk either by taking too little, or too much
Limitation/Interference: The assay shows 75
Adverse effects can occur within the range 10–20 mg/litre and both the As theophylline monohydrate modified-release tab: ≥6 years Usual maintenance dose: 9 mg/kg bid
Theophylline [CAS No
Theophylline (1,3‑dimethylxanthine), a bronchodilator, is widely used to treat patients with asthma, apnea (temporary asphyxia), and other obstructive lung diseases
Adverse effects can occur within the range 10-20mg/litre and both the frequency and severity increase at concentrations above 20mg/litre
Turnaround time: Hospital patients 4 hours; GP patients 24 hours
Call your doctor at once if you have: severe or continued vomiting; ongoing headache, trouble sleeping; rapid heartbeats; a seizure; new signs of illness (especially fever); low potassium level--leg cramps, constipation, irregular heartbeats, fluttering in your chest, increased thirst or urination In pregnancy the serum TSH reference range is different from the general population and should ideally be based on reference ranges derived from healthy pregnant women in the same population
First issued: 2008 Revised: 2011, 2015, 2018, 2021 Our literature is reviewed every two years and revised if necessary
Include early sampling times of 1, 2, and 4 hours and continue every 2 hours until at least 80% of the drug is released to provide assurance against premature release of drug (dose dumping) from the formulation
4) hr, significantly shorter than the mean value in nonsmokers (7
It’s available as an oral solution, an extended-release tablet, and an extended-release capsule
D-Dimer results <243ng/mL are considered Negative for the diagnosis of VTE if patient is <50 years old
Bronchodilators are medicines that relax the muscles in the bronchial tubes (air passages) of the lungs
Clin Chem
Unbound theophylline distributes throughout body water, but distributes poorly into body fat