Budesonide and formoterol and Phentermine interaction
Budesonide and formoterol and Phentermine: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.
Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.
What the FDA labels say
From the Budesonide and formoterol (Budesonide and Formoterol Fumarate Dihydrate) label · effective 2026-04-24
Clinically significant cardiovascular effects and fatalities have been reported in association with excessive use of inhaled sympathomimetic drugs.
Fatalities have been reported in association with excessive use of inhaled sympathomimetic drugs.
Serious asthma-related events: Long-acting beta2-adrenergic agonists as monotherapy increase the risk.
Therefore, budesonide and formoterol fumarate dihydrate, like all products containing sympathomimetic amines, should be used with caution in patients with cardiovascular disorders, especially coronary insufficiency, cardiac arrhythmias, and hypertension.
Coexisting Conditions Budesonide and formoterol fumarate dihydrate, like all medications containing sympathomimetic amines, should be used with caution in patients with convulsive disorders or thyrotoxicosis and in those who are unusually responsive to sympathomimetic amines.
From the Phentermine (Phentermine hydrochloride) label · effective 2026-08-17
…states • History of drug abuse • Pregnancy [ see Use in Specific Populations () ] • Nursing [ see Use in Specific Populations ( 8.3 ) ] • Known hypersensitivity, or idiosyncrasy to the sympathomimetic amines • History of cardiovascular disease (e.g., coronary artery disease, stroke, arrhythmias, congestive heart failure, uncontrolled hypertension) () • During or within…
• Known hypersensitivity, or idiosyncrasy to the sympathomimetic amines ( 4 )
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.