Thyroid hormone replacement
How Levothyroxine affects libido and sex drive
Libido and sex drive are commonly affected by medications, sometimes intentionally (e.g. ED therapies) and sometimes as an unwelcome side effect. Levothyroxine (Levothyroxine) may or may not affect libido depending on Levothyroxine; this page outlines what is documented at 25mcg, 50mcg, 75mcg, 100mcg, 150mcg and what users typically report.
Documented effects of Levothyroxine on libido
Some medications in Thyroid hormone replacement are designed specifically to affect sexual function; for those, libido changes are expected and central to the indication. Others have libido changes as side effects of altered hormones, mood, energy or autonomic function. According to the prescribing information for Levothyroxine, the documented frequency varies and is listed in the side-effect profile.
Managing libido changes
For unwanted libido suppression, the right response often depends on whether the issue is the medication itself, the underlying condition, fatigue, or relationship factors. Levothyroxine replaces deficient endogenous thyroxine, which is converted in tissues to the active hormone triiodothyronine (T3) by deiodinase enzymes. A dose review, a switch within the same class, or addressing other contributors are all reasonable strategies and should be discussed with the prescriber rather than self-managed by stopping Levothyroxine at 25mcg, 50mcg, 75mcg, 100mcg, 150mcg.
Frequently asked questions
Does Levothyroxine lower libido? ▾
Some users on Levothyroxine report reduced libido, some report no change, and a few — particularly on indications targeting sexual function — report improvement. Whether this happens depends on Levothyroxine and individual factors. The prescriber can review options if libido changes are persistent or distressing.
Can libido recover after stopping Levothyroxine? ▾
For most users, libido changes attributable to Levothyroxine resolve within weeks of stopping the medication, though the timeline varies by active ingredient and individual. Persistent changes after stopping warrant medical evaluation, as the underlying condition may be the contributing factor.
Products containing Levothyroxine
More on Levothyroxine
- With alcoholLevothyroxine and alcohol — is it safe to drink?
- With foodShould Levothyroxine be taken with food?
- Side effectsLevothyroxine side effects: common, rare and warning signs
- Dosage guideLevothyroxine dosage guide: how much to take and when
- OnsetHow fast does Levothyroxine start working?
- DurationHow long does Levothyroxine last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.