Aminophylline (Theophylline)

Also known as: theophylline ethylenediamine, methylxanthine

Wellness

In plain English

Aminophylline is a form of theophylline, an older FDA-approved medicine that opens airways and stimulates breathing, used for asthma and COPD. In compounded products it is mostly used topically (historically marketed for "cellulite"/fat reduction). Taken systemically, theophylline has a narrow safety margin—too much causes nausea, fast or irregular heartbeat, and seizures—so blood levels must be watched. Topical fat-reduction claims are not well supported.

The science

Aminophylline is the ethylenediamine salt of theophylline, a methylxanthine that acts as a nonselective phosphodiesterase inhibitor and adenosine-receptor antagonist, producing bronchodilation and modest anti-inflammatory and respiratory-stimulant effects. It remains an FDA-approved bronchodilator for asthma and COPD, though largely a later-line agent because of a narrow therapeutic index (Barnes, 2013). Theophylline toxicity (nausea, tachyarrhythmias, seizures) tracks with serum levels and drug interactions, requiring monitoring. Topical aminophylline has been promoted for localized fat/"cellulite" reduction based on lipolytic (beta-adrenergic/PDE) rationale, but rigorous evidence for clinically meaningful cosmetic fat loss is weak.

References

• Barnes PJ, Am J Respir Crit Care Med 2013 (Theophylline: state-of-the-art review)