Clomid (Clomiphene) – Patient Information for Australia
Basic Product Information
| International Non-Proprietary Name (INN) | Clomiphene |
|---|---|
| Australia Brand Names | Clomid®, Serophene® |
| ATC Code | G03GB02 |
| Available Forms and Strengths | Oral tablets: 50 mg (most common strength) |
| Manufacturers | Sanofi-Aventis, Chemists’ Own, and various reputable pharmaceutical companies |
| Prescription Status | Prescription only (Schedule 4) |
Mechanism of Action
In Simple Terms:Clomid (clomiphene) helps stimulate ovulation. It works by blocking the effects of oestrogen in your body, “tricking” your brain into thinking oestrogen levels are low. This causes the pituitary gland to release more follicle stimulating hormone (FSH) and luteinising hormone (LH), which help the ovaries produce and release eggs.
For Specialists:Clomiphene is a selective oestrogen receptor modulator (SERM). By inhibiting negative feedback of oestrogen on the hypothalamic-pituitary axis, it boosts endogenous gonadotropin release and stimulates follicular development and ovulation.
Pharmacokinetics
- Absorption: Well absorbed orally, with peak levels reached within 5-7 hours after administration.
- Metabolism: Extensively hepatic; active metabolites with longer half-life.
- Elimination: Slowly excreted, primarily via faeces. Small amount via urine.
- Duration of Action: Multiple days due to active metabolites; effect on ovulation timing extends over 5–7 days.
Use in Everyday Life and Best Practices
Clomid is primarily used in women who are having trouble getting pregnant due to problems with ovulation (irregular or absent periods). It is also sometimes prescribed off-label for male infertility and certain menstrual disorders. Use is typically guided by a fertility specialist or experienced GP.
- Clomid is usually taken as a short course, once daily for five consecutive days each menstrual cycle.
- It is typically started on day 2, 3, 4, or 5 of your menstrual cycle. Your doctor will advise the best timing for you.
- Dosing adjustments and monitoring (e.g. blood tests, ultrasound) are essential for safe and effective use.
Typical Dose (For Ovulation Induction): 50 mg orally once daily for 5 days. Dose may be increased to a maximum of 150 mg daily if needed, based on response.
Supportive Measures: Regular ultrasound and hormone blood tests are common in Australia to monitor response and avoid risks such as ovarian hyperstimulation.
Dosing in the Morning vs. Evening
- Morning: May be easier to remember and allows observation of any mild side effects (e.g. hot flushes, mood changes) during the day. May suit school/work routines.
- Evening: Some women find mild side effects less bothersome at night. Discuss your routine with your GP or pharmacist to establish consistency.
- Consistency is Key: Take Clomid at the same time each day. Consider using a phone reminder or incorporating the dose into your daily routine.
Taking with Food or on an Empty Stomach
Clomid can be taken with or without food. There is no significant effect of meals on Clomid absorption; however, taking with food may reduce the risk of stomach upset for some people. If you experience nausea, try taking your dose after breakfast or dinner.
Australian Dietary Habits: Enjoying Clomid with a main meal (lunch or tea) is entirely acceptable. Avoid grapefruit juice as it may influence liver metabolism of certain medicines.
Interaction Warnings
Some medicines, supplements, and foods may interact with Clomid and change how it works or increase side effect risk. Below is a summary:
| Interaction | Effect/Advice |
|---|---|
| Alcohol | May worsen dizziness, hot flushes; best limited or avoided. |
| Other fertility medicines (e.g. gonadotrophins) | Risk of ovarian hyperstimulation increases; use only under medical supervision. |
| Hormonal contraceptives | May counteract Clomid's effect; avoid concurrent use. |
| St John’s Wort | May alter Clomid metabolism—avoid unless discussed with your doctor. |
| Antidepressants/antipsychotics | Discuss with your GP or specialist; individual assessment required. |
| Grapefruit juice | May alter liver metabolism of some drugs including Clomid; best avoided. |
Indications
| Official Indication (TGA-approved) | Off-label/Common Uses |
|---|---|
| Induction of ovulation in women with anovulation or oligo-ovulation (e.g. polycystic ovary syndrome, unexplained infertility) | Male infertility (to increase sperm count), diagnosis of hypothalamic-pituitary dysfunction, certain menstrual disorders. |
Dosing According to Clinical Indications
| Indication | Adults (Female) | Adults (Male) | Pediatric | Elderly |
|---|---|---|---|---|
| Ovulation induction | 50 mg daily for 5 days per cycle, start on day 2–5. Max: 150 mg/day. Repeat in next cycle if needed. | Not routinely used | Not recommended | Limited data; use only if specialist recommends |
| Male infertility (off-label) | N/A | 25-50 mg daily, usually for 3-6 months (as directed by specialist) | Not recommended | Not routinely used |
Safety Profile & Side Effects
- Common Side Effects (≥1/100):
- Hot flushes
- Abdominal discomfort/bloating
- Breast tenderness
- Nausea
- Headache
- Visual disturbances (blurring, lights; rarely)
- Less Common/Rare Side Effects (<1/100):
- Painful ovary (mid-cycle), ovarian cysts
- Mood swings (irritability, anxiety)
- Allergic reaction (rash, swelling)
- Severe abdominal pain (sign of ovarian hyperstimulation—seek immediate medical care)
- Warnings:
- Should not be used in pregnancy or if you have liver disease, undiagnosed uterine bleeding, ovarian cysts not due to PCOS, or untreated thyroid/adrenal problems.
- Prolonged use (beyond 6 months) is not generally recommended.
- There may be a slightly increased risk of multiple pregnancies (twins or more).
If you experience visual changes, severe pelvic pain, or abdominal swelling, stop Clomid and contact your doctor urgently.
Guidelines for Proper Use – Practical Tips for Australians
- Take as directed, ideally at the same time each day.
- Keep a diary of period start dates, dosing days, and any symptoms.
- Avoid self-adjusting the dose. Consult your doctor if you miss a dose or have questions.
- Drinking sufficient water, eating regular meals, and staying active may support overall fertility care.
- Attend all scheduled check-ups and report any side effects or worries.
- Use additional contraceptive precautions if you do not wish to become pregnant, as Clomid is highly effective at inducing ovulation.
- Store below 25°C, protect from moisture, keep out of reach of children.
Alternative Treatment Options
- Letrozole (Femara®)
- Pros: Often preferred in women with PCOS; similar or better success rate than Clomid; fewer side effects.
- Cons: Not approved for ovulation induction in all settings (off-label use); prescription only.
- Metformin (especially if insulin resistance or overweight/PCOS)
- Gonadotrophin injections* (e.g. Gonal-F®, Puregon®; highly effective but higher cost and risk of ovarian hyperstimulation/multiple pregnancies)
- Surgical intervention for certain PCOS patients (e.g. ovarian drilling)
- In vitro fertilisation (IVF) (usually for advanced infertility)
*Reimbursed only under certain criteria by Medicare and some private health funds.
Legal, Registration, and Reimbursement Status in Australia
- Regulator: Registered with the Therapeutic Goods Administration (TGA).
- Prescription Status: Schedule 4 (prescription only); pharmacy supply requires a valid prescription from an Australian registered doctor.
- Reimbursement: Not listed on the Pharmaceutical Benefits Scheme (PBS) for infertility; may be covered by private health insurance under certain policies.
- Legal Use: For ovulation induction and certain off-label uses as determined by a doctor.
Latest Research and Clinical Guidance (2022–2025)
- The Royal Australian and New Zealand College of Obstetricians and Gynaecologists (RANZCOG) continues to recommend Clomid as a first-line therapy for ovulation induction in women with anovulatory infertility without contraindications.
- Recent meta-analyses and guidelines (ESHRE, ASRM, RANZCOG 2023) note letrozole may offer improved pregnancy rates—and lower multiple pregnancy risk—in women with PCOS compared to Clomid.
- Clomid remains effective, but all cycles should be closely monitored for efficacy and adverse effects via ultrasound and hormonal testing.
- Extended use beyond 6 cycles (or 6 months) is discouraged due to diminishing returns and safety concerns.
- References:
- Teede HJ, Misso ML, et al. (2023). "International evidence-based guideline for the assessment and management of polycystic ovary syndrome." Aust N Z J Obstet Gynaecol.
- RANZCOG Ovulation Induction Consumer Summary (2024).
Availability and Delivery
| Pack Size | Indicative Price† | Delivery Time (Sydney, Melbourne, Brisbane) | Delivery Time (Perth, Adelaide, Rural/Remote) |
|---|---|---|---|
| 10 tablets (50 mg) | $30–$50 AUD | 1–2 business days | 2–4 business days |
| 30 tablets (50 mg) | $85–$130 AUD | 1–2 business days | 2–4 business days |
†Prices can vary by pharmacy, location, and individual health insurance status.
Frequently Asked Questions (FAQ)
- How quickly does Clomid work?
Clomid usually acts within the first treatment cycle. Ovulation typically occurs 5–10 days after the last tablet. Your doctor will advise you on the best time to try to conceive. - Can I drive or work normally while taking Clomid?
Most people can continue regular activities. However, if you experience vision changes or severe dizziness, avoid driving or using machinery, and contact your doctor. - How many cycles can I safely use Clomid?
Up to 6 cycles is generally considered safe. Ongoing use should be reviewed by your specialist. - Can I take Clomid alongside vitamins or other supplements?
In most cases, yes. However, discuss all medicines and supplements (including complementary and herbal products) with your pharmacist or doctor. - Is a prescription required for Clomid in Australia?
Yes. Clomid is prescription-only and must be supplied by an Australian registered pharmacy on a doctor’s order.
For more information or personal advice, always contact your doctor, pharmacist, or fertility specialist.
