Clomid vs. Enclomiphene
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Clomid and enclomiphene are both SERMs used to stimulate natural testosterone production — but they have meaningful differences in receptor profile, side effects, and clinical results.
Enclomiphene is the active isomer of clomiphene (the compound in Clomid). It is generally preferred for testosterone support due to a cleaner receptor profile and fewer estrogenic side effects compared to full clomiphene citrate.
Side-by-Side Comparison
| Feature | Clomid (Clomiphene Citrate) | Enclomiphene |
|---|---|---|
| Mechanism | Mixed isomers (enclomiphene + zuclomiphene) | Pure enclomiphene isomer |
| Estrogenic effects | Some (due to zuclomiphene) | Minimal |
| Fertility support | Yes | Yes |
| Administration | Oral | Oral |
| LH/FSH stimulation | Yes | Yes — more selectively |
Who Each Option May Fit
Who May Fit Clomid Better
Men who have had prior success with clomiphene, or in situations where enclomiphene is not available. Clomid has a longer clinical track record and is FDA-approved for certain uses.
Who May Fit Enclomiphene Better
Men who want the testosterone-stimulating benefits of clomiphene without the estrogenic side effects from the zuclomiphene isomer. Younger men seeking fertility preservation often prefer enclomiphene.
Common Questions
Is enclomiphene FDA-approved?
Enclomiphene does not have FDA approval for hypogonadism treatment as of this writing. It is prescribed off-label by providers who find it clinically useful. Clomid (clomiphene citrate) has FDA approval for female infertility only.
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