A fixed-dose combination therapy primarily indicated for the management of anovulatory infertility in women. Clomiphene citrate is a selective estrogen receptor modulator (SERM) that induces ovulation by blocking estrogen receptors at the hypothalamus, leading to increased gonadotropin-releasing hormone (GnRH) secretion and subsequent follicle-stimulating hormone (FSH) and luteinizing hormone (LH) release. Coenzyme Q10 (Ubiquinone) is a fat-soluble, vitamin-like quinone that acts as a critical cofactor in the mitochondrial electron transport chain (ATP production) and a potent antioxidant. In this combination, CoQ10 is intended to support oocyte (egg) quality and mitochondrial energy metabolism in ovarian cells, potentially improving the ovarian response to clomiphene, especially in cases of diminished ovarian reserve or poor ovarian response.
Adult: One tablet (Clomiphene 100mg + CoQ10 50mg) orally once daily, usually for 5 days, starting on day 2, 3, 4, or 5 of the menstrual cycle (spontaneous or induced). The clomiphene dose may be adjusted (50mg-150mg) based on response, but this fixed combination is 100mg. CoQ10 component is typically 50-200mg daily; 50mg here is a supportive dose. Treatment cycles are usually limited to 3-6 ovulatory cycles.
Note: Take with a full glass of water. For optimal absorption of CoQ10, take with or immediately after a meal containing fats (e.g., milk, nuts, oil). Take at approximately the same time each day. The tablet should be swallowed whole, not crushed or chewed.
Clomiphene competitively blocks estrogen receptors (ERs) at the level of the hypothalamus, inhibiting the normal negative feedback of endogenous estrogen. This is perceived as a state of hypoestrogenism, leading to increased pulsatile secretion of Gonadotropin-Releasing Hormone (GnRH) from the hypothalamus. Increased GnRH stimulates the anterior pituitary to secrete higher amounts of Follicle-Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The rise in FSH promotes follicular recruitment, growth, and maturation in the ovary, ultimately leading to ovulation. Coenzyme Q10 is an endogenous, lipid-soluble antioxidant and an essential component of the mitochondrial electron transport chain (Complexes I, II, and III). It plays a vital role in aerobic cellular respiration and adenosine triphosphate (ATP) generation. In the context of fertility, it is proposed to improve mitochondrial function in oocytes (eggs), which are mitochondria-rich cells. Enhanced ATP production may support better chromosomal segregation during meiosis, reduce oxidative stress damage to the oocyte, and improve overall oocyte quality and embryo viability.
Pregnancy: CATEGORY X. Clomiphene is contraindicated during pregnancy. Animal studies show adverse fetal effects. There is a possible increased risk of birth defects (neural tube defects) with clomiphene use, though data in humans is inconclusive. If pregnancy occurs during therapy, discontinue immediately. CoQ10 is generally considered safe in pregnancy (Category B), but the combination must be stopped.
Driving: May cause dizziness, visual disturbances, or fatigue. Patients should be cautioned about driving or operating machinery until they know how the medication affects them.
| Letrozole, Tamoxifen, other SERMs | Additive estrogenic/anti-estrogenic effects; may increase risk of adverse effects. Concurrent use not recommended. | Major |
| GnRH agonists (Leuprolide, Buserelin) | May interfere with the ovulation induction protocol. Used under specialist supervision only. | Major |
| Warfarin and other Coumarin anticoagulants | Clomiphene may potentiate anticoagulant effect, increasing INR and bleeding risk. Monitor INR closely. | Major |
| Thyroid hormones | Clomiphene may increase serum thyroxine-binding globulin (TBG), potentially altering thyroid function tests. Clinical effect on thyroid status is minimal. | Moderate |
| Statins (Atorvastatin, Simvastatin) | Statins inhibit HMG-CoA reductase, the same pathway for endogenous CoQ10 synthesis. May lower CoQ10 levels. This combination may help replenish it. | Moderate |
| Beta-blockers (Propranolol, Metoprolol) | May reduce the synthesis or increase the metabolism of CoQ10. Significance in this combination is unclear. | Minor |
| Tricyclic Antidepressants (Amitriptyline), Phenothiazines | May potentiate anticholinergic side effects (dry mouth, blurred vision, constipation). | Moderate |
Same composition (Clomiphene (100mg) + Coenzyme Q10 (50mg)), different brands: