Follitropin delta
Brand names: Rekovelle
A recombinant human follicle-stimulating hormone (follitropin delta) used for controlled ovarian stimulation in women undergoing assisted reproduction such as IVF/ICSI.
Adult dose
Dose adjustments
Safety, efficacy and pharmacokinetics in patients with renal or hepatic impairment have not been specifically studied in clinical trials; although limited, data did not indicate a need for a different dosing regimen in this population (SPC §4.2).
Dose auto-extracted from UK Summary of Product Characteristics (SPC) via the eMC — not yet clinician-verified. Always confirm against the product SmPC and your local formulary before prescribing.
Contraindications
- Hypersensitivity to the active substance or to any of the excipients
- Tumours of the hypothalamus or pituitary gland
- Ovarian enlargement or ovarian cyst not due to polycystic ovarian syndrome
- Gynaecological haemorrhages of unknown aetiology
- Ovarian, uterine or mammary carcinoma
- Should not be administered where treatment outcome is unlikely to be favourable: primary ovarian failure; malformations of sexual organs incompatible with pregnancy; fibroid tumours of the uterus incompatible with pregnancy
Side effects
- Ovarian hyperstimulation syndrome (common)
- Headache (common)
- Pelvic pain, including pelvic discomfort and adnexa uteri pain (common)
- Nausea (common)
- Fatigue (common)
- Uncommon: mood swings, somnolence, dizziness, diarrhoea, vomiting, constipation, abdominal discomfort, vaginal haemorrhage, breast discomfort
Clinical monograph
How it works
It stimulates ovarian follicular development through FSH receptors on granulosa cells; dosing is individualised using body weight and ovarian reserve markers.
Prescribing in practice
- Ovarian hyperstimulation syndrome is the main serious risk, so treatment is specialist-supervised with careful monitoring.
- Dosing is individualised (including by anti-Müllerian hormone and body weight) and the product is not interchangeable unit-for-unit with other follitropins.
- Multiple pregnancy and thromboembolism risks are increased during stimulation; exclude relevant tumours and untreated endocrine disorders first.
Monitoring
Monitor follicular response with ultrasound (and oestradiol where indicated) to guide management and reduce hyperstimulation risk.
Counselling the patient
- Dosing is tailored to you and differs from other FSH products, so follow your clinic's instructions exactly.
- Report abdominal swelling, pain or breathlessness promptly.
- There is an increased chance of multiple pregnancy.
Evidence & guidelines
Individualised follitropin delta dosing was evaluated against conventional FSH stimulation in the ESTHER randomised trial programme.
Reference: SmPC; Confirm identity and dosing against the manufacturer SPC (eMC) and NICE. Verify against your local formulary and current prescribing references before prescribing. The structured dose values shown have been reviewed by a clinician. Monograph status: clinician-reviewed (2026-07-04).
Related
Curated clinical cross-links plus same-class fallbacks.
- Spinal Anaesthesia Hypotension Management · AAGBI; ASA
- Pre-Eclampsia / Eclampsia in ED · NICE NG133; RCOG Green-top 10A
- Suspected Ectopic Pregnancy · NICE NG126; RCOG Green-top 21
- Polycystic Ovary Syndrome (PCOS) · International PCOS Guideline 2023; NICE CKS
- Pre-eclampsia Management · NICE NG133 2019
- Ectopic Pregnancy · NICE CG154 / RCOG GTG 21