Drug interactions
Dexamethasone-tobramycin + Somapacitan
Severity: Moderate
Dexamethasone-tobramycin and Somapacitan: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Growth hormone inhibits 11-beta-HSD1, which can reduce conversion of cortisone to active cortisol and may unmask adrenal insufficiency in patients on replacement glucocorticoids. Supraphysiologic glucocorticoid doses can also blunt the growth-promoting effect of growth hormone.
What this interaction means in plain words
Dexamethasone-tobramycin and Somapacitan can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Dexamethasone-tobramycin belongs to Anti Bacterial; Somapacitan belongs to Endocrine.
Why it happens
Growth hormone inhibition of 11-beta-HSD1 and pharmacodynamic antagonism of growth effects by glucocorticoids.
What to do
Monitor growth response and adjust the glucocorticoid dose to the lowest effective level. Reassess replacement glucocorticoid needs after starting somapacitan.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Dexamethasone-tobramycin
Other interactions of Somapacitan
- Alogliptin-metformin + Somapacitan Moderate
- Alogliptin-pioglitazone + Somapacitan Moderate
- Alogliptin + Somapacitan Moderate
- Bazedoxifene-conjugated estrogens + Somapacitan Moderate
- Canagliflozin-metformin + Somapacitan Moderate
- Chlorpropamide + Somapacitan Moderate
Frequently asked questions
Can I take Dexamethasone-tobramycin with Somapacitan?
MediHelp rates the interaction as moderate. Dexamethasone-tobramycin and Somapacitan can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Growth hormone inhibits 11-beta-HSD1, which can reduce conversion of cortisone to active cortisol and may unmask adrenal insufficiency in patients on replacement glucocorticoids. Supraphysiologic glucocorticoid doses can also blunt the growth-promoting effect of growth hormone.
How serious is the interaction between Dexamethasone-tobramycin and Somapacitan?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor growth response and adjust the glucocorticoid dose to the lowest effective level. Reassess replacement glucocorticoid needs after starting somapacitan.
What other medicines interact with Dexamethasone-tobramycin?
MediHelp also lists interactions of Dexamethasone-tobramycin with, for example, Capreomycin, Carboplatin, Ciprofloxacin. The full list is on the Dexamethasone-tobramycin page.
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