Drug interactions
Insulin aspart + Testosterone
Severity: Minor
Insulin aspart and Testosterone: 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
Testosterone can improve insulin sensitivity in some hypogonadal men, which may enhance the glucose-lowering effect of insulin. This can occasionally lead to lower insulin requirements and hypoglycemia, though the effect is usually modest.
What this interaction means in plain words
Insulin aspart and Testosterone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Insulin aspart belongs to Endocrine; Testosterone belongs to Endocrine.
Why it happens
Androgens may improve insulin sensitivity and glucose uptake, adding to insulin's hypoglycemic effect.
What to do
Monitor blood glucose after starting or changing testosterone therapy and reduce the insulin dose if hypoglycemia occurs.
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 Insulin aspart
Other interactions of Testosterone
- Testosterone + Warfarin Major
- Androstenedione + Testosterone Moderate
- Betamethasone + Testosterone Moderate
- Carbamazepine + Testosterone Moderate
- Corticotropin + Testosterone Moderate
- Cortisone + Testosterone Moderate
Frequently asked questions
Can I take Insulin aspart with Testosterone?
MediHelp rates the interaction as minor. Insulin aspart and Testosterone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Testosterone can improve insulin sensitivity in some hypogonadal men, which may enhance the glucose-lowering effect of insulin. This can occasionally lead to lower insulin requirements and hypoglycemia, though the effect is usually modest.
How serious is the interaction between Insulin aspart and Testosterone?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood glucose after starting or changing testosterone therapy and reduce the insulin dose if hypoglycemia occurs.
What other medicines interact with Insulin aspart?
MediHelp also lists interactions of Insulin aspart with, for example, Alogliptin-pioglitazone, Ethanol, Glimepiride-pioglitazone. The full list is on the Insulin aspart page.
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