Drug interactions
Bremelanotide + Levothyroxine
Severity: Minor
Bremelanotide and Levothyroxine: minor 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
Bremelanotide slows gastric emptying, which may delay or reduce absorption of oral drugs. Levothyroxine absorption could therefore be altered, though the effect is likely modest with intermittent as-needed bremelanotide dosing.
What this interaction means in plain words
Bremelanotide and Levothyroxine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Bremelanotide belongs to Genitourinary; Levothyroxine belongs to Endocrine.
Why it happens
Delayed gastric emptying may alter the rate and extent of oral levothyroxine absorption.
What to do
No routine change; if hypothyroid symptoms appear or TSH rises in a patient using bremelanotide frequently, check TSH and adjust levothyroxine dose.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Levothyroxine
Other interactions of Bremelanotide
- Bremelanotide + Bupropion-naltrexone Moderate
- Bremelanotide + Cyclosporin Moderate
- Bremelanotide + Digoxin Moderate
- Bremelanotide + Disopyramide Moderate
- Bremelanotide + Naltrexone Moderate
- Bremelanotide + Procainamide Moderate
Frequently asked questions
Can I take Bremelanotide with Levothyroxine?
MediHelp rates the interaction as minor. Bremelanotide and Levothyroxine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Bremelanotide slows gastric emptying, which may delay or reduce absorption of oral drugs. Levothyroxine absorption could therefore be altered, though the effect is likely modest with intermittent as-needed bremelanotide dosing.
How serious is the interaction between Bremelanotide and Levothyroxine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine change; if hypothyroid symptoms appear or TSH rises in a patient using bremelanotide frequently, check TSH and adjust levothyroxine dose.
What other medicines interact with Levothyroxine?
MediHelp also lists interactions of Levothyroxine with, for example, Cholestyramine, Sodium iodide i-131, Tiratricol. The full list is on the Levothyroxine page.
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