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Theophylline consumer information

Thyroid Products: May increase the metabolism of Theophylline Derivatives. Theophylline concentrations at above average doses have the greatest likelihood of experiencing large changes in serum Theophylline concentration in response to dosage changes. ZYFLO. This includes all prescription and nonprescription medicines. cvs pharmacy carafate prices

Indications and usage of theophylline

The dose of Theophylline must be individualized on the basis of peak serum Theophylline concentration measurements in order to achieve a dose that will provide maximum potential benefit with minimal risk of adverse effects. Stabilized patients, 12 years of age or older, who are taking an immediate-release or controlled-release theophylline product may be transferred to once-daily administration of 400 mg or 600 mg Uniphyl Tablets on a mg-for-mg basis. Lower initial doses may be required in patients with reduced theophylline clearance. Dosage should be adjusted according to serum level measurements during the first 12- to 24-hour period.

How should I take theophylline?

Saliva concentrations of theophylline cannot be used reliably to adjust dosage without special techniques. Febuxostat: May increase serum concentrations of the active metabolites of Theophylline Derivatives. Specifically, concentrations of 1-methylxanthine, a metabolite of unknown clinical importance, may become elevated. Beta-2 blocking effect may decrease efficacy of Theophylline.

Theophylline side effects

Do not give this medication to anyone under 18 years old without medical advice. Off-label use: For reversal of adenosine-, dipyridamole-, or regadenoson-induced adverse events during nuclear cardiac stress testing, administer IV undiluted over 30 to 60 seconds, repeat as necessary. Get medical help right away if you have any very serious side effects, including: seizures. This medication can affect the results of certain medical tests. Tell any doctor who treats you that you are using theophylline. truvada mylan price



Theophylline overdose

Pediatrics: The clearance of Theophylline is very low in neonates see . Theophylline clearance reaches maximal values by one year of age, remains relatively constant until about 9 years of age and then slowly decreases by approximately 50% to adult values at about age 16. Renal excretion of unchanged Theophylline in neonates amounts to about 50% of the dose, compared to about 10% in children older than three months and in adults. Inhaled corticosteroids are preferred. It is also considered an alternative addition to inhaled corticosteroids in moderate persistent and adults. Long-acting inhaled beta2-agonists are the preferred addition to inhaled corticosteroids. ZYFLO is taken four times a day with or without food. This medication does not work right away and should not be used for sudden attacks of breathing trouble. Consider 10% dose reduction in infusion rate to improve safety margin even if dose is tolerated. Drug Interactions for information regarding table. Theophylline toxicity referred to a regional poison center for consultation. Central nervous system: Theophylline-induced nonconvulsive status epilepticus has been reported rarely and should be considered in patients who develop CNS abnormalities. Metabolic side effects have included hypokalemia, hyperglycemia, respiratory alkalosis, hypophosphatemia, and hypomagnesemia, especially in the situation of acute overdosage. The magnitude of these abnormalities have been correlated with theophylline concentrations. Hypercalcemia has been reported in a patient with hyperthyroid disease with theophylline at therapeutic concentrations.



What is theophylline

Decreases Theophylline clearance by inhibiting cytochrome P450 1A2. Fed conditions were the same as those previously cited. Both the N-demethylation and hydroxylation pathways of theophylline biotransformation are capacity-limited. ZYFLO or stop taking the medicine without talking to your doctor first. Theophylline Tablets are not to be chewed or crushed because it may lead to a rapid release of Theophylline with the potential for toxicity. The scored tablet may be split. Patients receiving Theophylline tablets may pass an intact matrix tablet in the stool or via colostomy. These matrix tablets usually contain little or no residual Theophylline. Theophylline clearance is decreased by 50% or more in patients with CHF. The extent of reduction in theophylline clearance in patients with CHF appears to be directly correlated to the severity of the cardiac disease. Since theophylline clearance is independent of liver blood flow, the reduction in clearance appears to be due to impaired hepatocyte function rather than reduced perfusion. Iopamidol. Specifically, the risk for seizures may be increased. Management: Discontinue agents that may lower the seizure threshold 48 hours prior to intrathecal use of iopamidol. Wait at least 24 hours after the procedure to resume such agents. In nonelective procedures, consider use of prophylactic anticonvulsants. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist. Theophylline Oral Solution USP is contraindicated in patients with a history of hypersensitivity to theophylline or other components in the product. The first-line controller medications for asthma based on the Expert Panel Report EPR-3 asthma guidelines from the National Heart, Blood, and Lung Institute NHLBI are inhaled corticosteroids. These medications are delivered either through inhaler devices or a nebulizer and help to control inflammation in the lungs due to asthma, thus improving symptoms and decreasing the risk of exacerbations. Inhaled corticosteroids by both generic and brand names include fluticasone Flovent and Arnuity Ellipta Pulmicort beclomethasone Asmanex and ciclesonide Alvesco. There was a minimal, dose-related, statistically significant increase in micronuclei at high doses in mice. The significance of these findings, in the absence of effects in other test systems, is not established. The use of theophyllines is associated with an increase in heart rate which may progress to supraventricular tachycardia or ventricular arrhythmia at high serum drug concentrations. Appearance of cardiac adverse effects is generally an indication of theophylline toxicity, although patients with a history of tachyarrhythmias may be more susceptible to the chronotropic effect of these drugs. Therapy with theophyllines should be administered cautiously in such patients. Caution is also advised in patients with hypertension, hyperthyroidism, angina pectoris, or recent myocardial infarction, since high dosages of the drugs are associated with positive inotropic as well as chronotropic effects. Clinical monitoring of serum drug concentrations is recommended to prevent toxicity. epivir



What other drugs will affect theophylline

If symptoms are not controlled and current dosage is tolerated, increase dose about 25%. Recheck serum concentration after three days for further dosage adjustment. Methotrexate: May increase the serum concentration of Theophylline Derivatives. If symptoms are not controlled and current dosage is tolerated, increase dose about 25%. Dosing began one-half hour after the evening meal with the test dose occurring one-half hour after breakfast. Theophylline has two distinct actions; smooth muscle relaxation ie, bronchodilation and suppression of the response of the airways to stimuli ie, non-bronchodilator prophylactic effects. Bronchodilation is mediated by inhibition of two isoenzymes, phosphodiesterase PDE III and, to a lesser extent, PDE IV while non-bronchodilation effects are mediated through other molecular mechanisms. Theophylline increases the force of contraction of diaphragmatic muscles through enhancement of calcium uptake through adenosine-mediated channels. Tell your doctor if you have any major changes in your diet. Your doctor may need to adjust your dose. Race: Pharmacokinetic differences in Theophylline clearance due to race have not been studied. Table III. Drugs that have been documented not to interact with theophylline or drugs that produce no clinically significant interaction with theophylline. Higher doses of Theophylline may be required to achieve desired effect. Treat overdose as indicated see recommendations for chronic overdosage. If theophylline is subsequently resumed, decrease dose by at least 50% and recheck serum concentration after 3 days to guide further dosage adjustment. Medscape: “Cord-Cutting Technique Smooths Cellulite for 3 Years. Theophylline is very similar to aminophylline and oxtriphylline. Do not take medications containing aminophylline or oxtriphylline while using theophylline. Buss DC, Marshall RW, Milligan N, Mcqueen I, Compston DAS, Routledge PA "The effect of intravenous aminophylline on essential tremor. cost of bimatoprost in nz bimatoprost



How should i store theophylline

How often did hospital staff describe possible side effects in a way you could understand? Increases in the dose of theophylline should not be made in response to an acute exacerbation of symptoms of chronic lung disease since theophylline provides little added benefit to inhaled beta 2-selective agonists and systemically administered corticosteroids in this circumstance and increases the risk of adverse effects. A peak steady-state serum theophylline concentration should be measured before increasing the dose in response to persistent chronic symptoms to ascertain whether an increase in dose is safe. Decrease infusion rate by 25% even if no adverse effects present. Also called radiofrequency systems, they show promise for cellulite. Similarly, a patient with decreased Theophylline binding may have a sub-therapeutic total drug concentration while the pharmacologically active unbound concentration is in the therapeutic range. If only total serum Theophylline concentration is measured, this may lead to an unnecessary and potentially dangerous dose increase. In patients with reduced protein binding, measurement of unbound serum Theophylline concentration provides a more reliable means of dosage adjustment than measurement of total serum Theophylline concentration. Theophylline is a methylxanthine. Sustained-release methylxanthine medicines are used to control in the airways in the bronchial tubes. Short-acting methylxanthine medicines are used to control narrowing of the bronchial tubes. This may reduce symptoms. Usually the benefits of the medicine are more important than any minor side effects. Shannon M "Life-threatening events after theophylline overdose - A 10-year prospective analysis. The listing of drugs in Tables II and III are current as of June, 1996. RD, Stevenson HC "Generalized dermatitis to aminophylline. What are the specific controller medications for asthma? buy combivent by the pill



Theophylline dosing information

Pediatrics The clearance of theophylline is very low in neonates see . Theophylline clearance reaches maximal values by one year of age, remains relatively constant until about 9 years of age and then slowly decreases by approximately 50% to adult values at about age 16. Renal excretion of unchanged theophylline in neonates amounts to about 50% of the dose, compared to about 10% in children older than three months and in adults. Stop infusion and treat overdose; if resumed, decrease subsequent infusion rate at least 50%. F for at least 24 hours is probably required to produce a clinically significant increase in serum Theophylline concentrations. May lower theophylline seizure threshold. Since the time required to reach steady state is a function of theophylline half-life, up to 5 days may be required to achieve steady state in a premature neonate, while only 2-3 days may be required in a 6 month old infant without other risk factors for impaired clearance in the absence of a loading dose. CloZAPine: CYP1A2 Inhibitors Weak may increase the serum concentration of CloZAPine. Take this by as directed by your doctor, usually once or twice daily. Since different manufacturers have different ways to take this medication, ask your doctor or about the best times to take your brand of theophylline and if you should take the drug with or without food. Increases theophylline clearance by increasing demethylation and hydroxylation. Decreases renal clearance of theophylline. Levels of theophylline in the blood may be decreased, making the theophylline less effective. enim.info pristiq



Before taking theophylline

Have persistent nighttime symptoms. Moderate-to-severe phototoxicity reactions have been observed in patients exposed to direct sunlight while receiving enoxacin or some other drugs in this class. Excessive sunlight should be avoided. Therapy should be discontinued if phototoxicity occurs. Institute extracorporeal removal if emesis, seizures, or cardiac arrhythmias cannot be adequately controlled see OVERDOSAGE, Extracorporeal Removal. Theophylline serum concentrations have been a significant predictor of arrhythmias. Decrease in theophylline plasma concentrations. This product allows a 12-hour dosing interval for a majority of patients and a 24-hour dosing interval for selected patients see DOSAGE AND ADMINISTRATION section for description of appropriate patient populations.



How should i take theophylline

Bernstein JE, Lorincz AL "Ethylenediamine-induced exfoliative erythroderma. Remember that your doctor has prescribed this because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication not have serious side effects. What happens if I overdose? Charcoal may decrease the amount of theophylline your body absorbs. Goldberg MJ, Spector R, Park GD, Johnson GF, Roberts P. The effect of sorbitol and activated charcoal on serum theophylline concentrations after slow-release theophylline. There are no adequate and well-controlled studies in pregnant women. The exact relationship of these and other factors to nighttime serum concentrations and the clinical significance of such findings require additional study. Therefore, it is not recommended that Theo-24 when used as a once-a-day product be administered at night. Uniphyl theophylline anhydrous tablet Tablet. Careful monitoring of side effects and drug blood levels is recommended. Increases Theophylline clearance by increasing cytochrome P450 1A2 and 3A3 activity. What should I avoid while talking ZYFLO? McIvor RA, et al. 2011. COPD, search date April 2010. Do not take medications containing aminophylline or oxtriphylline while using theophylline. buy acillin otc in uk



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Have persistent nighttime symptoms


Highlights for theophylline

In patients with chronic obstructive pulmonary disease COPD clinical studies have shown that theophylline decreases dyspnea, air trapping, the work of breathing, and improves contractility of diaphragmatic muscles with little or no improvement in pulmonary function measurements. Theophylline from the tissue compartment. Peritoneal dialysis is ineffective for Theophylline removal; exchange transfusions in neonates have been minimally effective. Hyperthyroidism: Use with caution in patients with hyperthyroidism; increased theophylline clearance may occur. Before making a dose increase to determine whether the serum concentration is sub-therapeutic in a patient who continues to be symptomatic. trazodone

How should I take TheoCap theophylline?

If the serum sample is drawn more or less than twelve 12 hours after the dose, the results must be interpreted with caution since the concentration may not be reflective of the peak concentration. In contrast, when signs or symptoms of theophylline toxicity are present, the serum sample should be obtained as soon as possible, analyzed immediately, and the result reported to the healthcare professional without delay. Patients should be instructed not to continue any dosage that causes adverse effects and to withhold subsequent doses until the symptoms have resolved, at which time the healthcare professional may instruct the patient to resume the drug at a lower dosage see Dosing Guidelines, Table VI. redustat

Why do people take guarana?

Theo-24 Extended-release capsules meet Drug Release Test 6 as published in the current USP monograph for Theophylline Extended-release Capsules. Product Information. Theo-Dur theophylline. Monitor the patient and obtain serial Theophylline concentrations every 2-4 hours to gauge the effectiveness of therapy and to guide further treatment decisions.

Theophylline ingredients

Alterman P, Spiegel D, Feldman J, Yaretzky A "Histamine h2-receptor antagonists and chronic theophylline toxicity. How should I take theophylline Uniphyl? Clearance is very low in neonates and reaches max values by 1 year of age, remains relatively constant until about 9 years of age, and then slowly decreases by approximately 50% to adult values at about 16 years of age. Renal excretion of unchanged theophylline in neonates amounts to about 50% of the dose, compared to about 10% in children older than three months and in adults. This minimally invasive procedure can improve your cellulite. Results have been shown to last for at least 2 years. The doctor marks the area, injects a numbing solution, and then inserts a tiny blade to cut the connective tissue that holds your fat onto those dimples. cheapest aprovel order online store

QuiNINE: May increase the serum concentration of Theophylline Derivatives. Complete the What is a document? Phenytoin: May decrease the serum concentration of Theophylline Derivatives. Theophylline Derivatives may decrease the serum concentration of Phenytoin. Management: Seek alternatives when possible. Increase Theophylline clearance by increasing demethylation and hydroxylation. Decreases renal clearance of Theophylline. Cross-resistance with other quinolones has been demonstrated. buy atrovent holland and barrett

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