Aminophylline Injection, USP is a sterile, nonpyrogenic solution of aminophylline in water for injection. Aminophylline (dihydrate) is approximately 79% of anhydrous theophylline by weight. Aminophylline Injection is administered by slow intravenous injection or diluted and administered by intravenous infusion. The solution contains no bacteriostat or antimicrobial agent and is intended for use only as a single-dose injection. When smaller doses are required the unused portion should be discarded. Aminophylline is a 2:1 complex of theophylline and ethylenediamine. Theophylline is structurally classified as a methylxanthine. Aminophylline occurs as a white or slightly yellowish granule or powder, with a slight ammoniacal odor. Aminophylline has the chemical name 1H-Purine-2, 6-dione, 3,7-dihydro-1,3-dimethyl-, compound with 1,2-ethanediamine (2:1).
Intravenous theophylline is indicated as an adjunct to inhaled beta-2 selective agonists and systemically administered corticosteroids for the treatment of acute exacerbations of the symptoms and reversible airflow obstruction associated with asthma and other chronic lung diseases, e.g., emphysema and chronic bronchitis.
Published Studies Related to Aminophylline
Attenuation of the side effect profile of regadenoson: a randomized double-blind
placebo-controlled study with aminophylline in patients undergoing myocardial
perfusion imaging and have severe chronic kidney disease--the ASSUAGE-CKD trial. 
A subgroup analysis of the ASSUAGE trial suggested that the standardized
intravenous aminophylline administration following regadenoson-stress leads to
substantial attenuation of regadenoson adverse-effects in patients with severe
chronic kidney disease (CKD)... In conclusion, the routine standardized
administration of intravenous aminophylline in patients with severe CKD
substantially reduces the frequency and severity of the adverse-effects
associated with regadenoson-stress without changing the ischemic burden.
Attenuation of the side effect profile of regadenoson: a randomized
double-blinded placebo-controlled study with aminophylline in patients undergoing
myocardial perfusion imaging. "The ASSUAGE trial". 
other adverse effects associated with regadenoson... CONCLUSIONS: This trial supports the routine administration of IV-aminophylline
Effects of aminophylline on cognitive recovery after sevoflurane anesthesia. 
clinical recovery after sevoflurane anesthesia... CONCLUSION: The administration of escalating doses of aminophylline accelerates
Efficacy of N-acetylcysteine and aminophylline in preventing contrast-induced nephropathy. [2010.03]
CONCLUSIONS: These results suggest that both prophylactic NAC and aminophylline administration are effective in preventing CIN, but not with hydration alone. It appears that the two compounds work in different ways against CIN. Copyright 2009 Japanese College of Cardiology. Published by Elsevier Ltd. All rights reserved.
Pharmacokinetics of aminophylline delivered to the small intestine and colon using remote controlled capsules. [2010.02.05]
BACKGROUND: A patented remote controlled capsule (RCC) has recently been developed to provide noninvasive drug delivery to selected sites in the human gut that allows assessment of regional gastrointestinal (GI) drug absorption under a normal physiological environment. The objective of this study was to investigate the rate and extent of aminophylline absorption after site-specific delivery of the drug in the GI tract using RCC and a magnetic marker monitoring (MMM) technique... CONCLUSIONS: The proprietary of the RCC and MMM technique offer the opportunity to obtain data on the intestinal absorption of a drug in humans under noninvasive conditions. Aminophylline is rapidly and efficiently absorbed from the small bowel. While colonic absorption was limited by the poor water condition although effective absorption was observed from the ascending colon. This provides an opportunity for rational development of modified-release formulations as well as alternative dosage forms.
Clinical Trials Related to Aminophylline
Attenuation of the Side Effect Profile of Regadenoson: Study With Aminophylline in Patients With Severe Kidney Disease Undergoing Myocardial Perfusion Imaging [Recruiting]
The routine administration of 75 mg of intravenous aminophylline in patients with severe
chronic kidney disease undergoing a nuclear stress test with regadenoson (Lexiscan®) can
reduce or eliminate the incidence of diarrhea and other side effects related to regadenoson.
Study of BCG + Aminophylline Toxicity When Used in the Treatment of Bladder Cancer [Recruiting]
The purpose of this study is to evaluate whether a new potential treatment for non invasive
bladder cancer is safe and if it leads to side effects such as irregular heart rate,
agitation, or burning with urination. Patients who have early stage bladder cancer and will
be receiving BCG, a bladder cancer therapy as recommended by a doctor, will be asked to
participate in a study where they are given the standard BCG followed by the experimental
drug, aminophylline. Although we hope this medicine may one day prove to help bladder
cancer patients, at the current time we do not know if it has any benefits at all. We have
data in mice that suggest that aminophylline slows the growth of tumors when coupled with
Aminophylline to Prevent Acute Kidney Injury in Children After Cardiac Surgery [Recruiting]
Children with congenital heart defects often need cardiac surgery with cardiopulmonary
bypass (the "heart-lung machine"). Approximately 35 to 50% of these children will have
"acute kidney injury," or damage to the kidneys, after the procedure. We currently have few
medications to prevent this kidney injury. The hypothesis of this study is that giving
aminophylline after heart surgery can decrease the acute kidney injury.
The Impact of the Routine Aminophylline Administration Following Regadenoson Stress on SPECT Myocardial Perfusion [Recruiting]
The investigators developed a modified regadenoson nuclear stress test of the heart that
incorporates an aminophylline injection following regadenoson (The ASSUAGE protocol). The
modified (ASSUAGE) protocol has been associated with fewer side effects and was better
tolerated by patients.
This study will investigate whether the modified regadenoson stress protocol (ASSUAGE)
produces blood flow pattern to the heart similar to that of a standard regadenoson stress
protocol. In proven to be the case, the ASSUAGE protocol has the potential to be used on a
wide scale instead of the current standard protocol.
Aminophylline in Bradyasystolic Cardiac Arrest [Completed]
The purpose of this study is to evaluate the effect of aminophylline in patients with
out-of-hospital bradyasystolic cardiac arrest.
Reports of Suspected Aminophylline Side Effects
Confusional State (2),
Respiratory Depression (2),
Multi-Organ Failure (2),
Streptococcal Sepsis (2),
Metabolic Acidosis (2),
Tachyarrhythmia (2), more >>