Cycrin
Cycrin
- Cycrin can be purchased from some online pharmacies and local suppliers, and in many places it is a prescription-only medicine; however, availability without a prescription may depend on local rules and the seller.
- Cycrin (medroxyprogesterone acetate) is used for conditions such as abnormal uterine bleeding, amenorrhoea, and prevention of endometrial hyperplasia with oestrogen therapy; it works as a progestogen by acting on progesterone receptors to regulate the menstrual cycle and support the endometrium.
- The usual dose varies by indication: 5–10 mg orally once daily for 5–10 days for amenorrhoea or abnormal uterine bleeding, 5–10 mg daily for 12–14 days per month for endometrial hyperplasia prevention, or 150 mg by injection every 3 months for contraception.
- Cycrin is usually administered as an oral tablet; medroxyprogesterone is also available in injectable form as depot medroxyprogesterone acetate.
- Onset of action is not immediate: oral effects are typically seen within a few days during the treatment course, while the injectable contraceptive begins to work more gradually, usually after the injection has been given and depending on timing in the menstrual cycle.
- The duration of action depends on the form used: tablets act for about a day and are taken in a short course or cyclic regimen, while the depot injection can last around 3 months.
- Alcohol should be avoided or used cautiously, as it may worsen dizziness, nausea, or mood-related side effects, and it is best to speak with a doctor or pharmacist if you drink alcohol regularly.
- The most common side effects are breast tenderness, headache, vaginal spotting or bleeding, weight changes, mood changes, nausea, and acne.
- Would you like to try Cycrin without a prescription?
Basic Cycrin Information
- INN (International Nonproprietary Name): Medroxyprogesterone, also known as medroxyprogesterone acetate.
- Brand names available in United Kingdom: Provera, Cycrin, Depo Provera, and generic medroxyprogesterone.
- ATC Code: G03DA02.
- Forms & dosages: Tablets 2.5 mg, 5 mg, 10 mg; injectable 50 mg/mL and 150 mg/mL.
- Manufacturers in United Kingdom: Pfizer and various authorised generics; local generics may also be supplied.
- Registration status in United Kingdom: Authorised under various brand names depending on country and supply route.
- OTC / Rx classification: Prescription Only (Rx), not available OTC.
Latest UK And EU Research Findings On Cycrin And Medroxyprogesterone
Patients often ask whether Cycrin is still used much in the UK, and whether the evidence supports it.
The short answer is yes, especially where cycle control, endometrial protection, or injectable contraception is needed.
Cycrin is the brand name, while the medicine itself is medroxyprogesterone or medroxyprogesterone acetate, with ATC code G03DA02.
Across UK and EU practice, recent evidence from 2022 to 2025 has kept the focus on bleeding control, predictable withdrawal bleeding, and protection of the womb lining when oestrogen is used.
In NHS settings, the evidence is translated through MHRA-regulated supply routes, local formularies, and prescribing guidance from GP and specialist services.
Products may appear as Provera tablets or generic medroxyprogesterone, and packaging can differ by country, especially between blister packs in Europe and other pack styles elsewhere.
| Evidence Area | What UK And EU Practice Focuses On | Clinical Relevance |
|---|---|---|
| Bleeding control | Improving cycle regularity and reducing unscheduled bleeding | Useful in abnormal uterine bleeding and amenorrhoea |
| Endometrial protection | Monthly progestogen cover with oestrogen replacement | Helps prevent endometrial hyperplasia |
| Contraceptive use | Depot medroxyprogesterone remains an established long-acting option | Supports adherence where daily tablets are harder to manage |
| Safety signals | Monitoring for thromboembolic events, liver problems, mood changes, and visual symptoms | Guides careful prescribing and follow-up |
That evidence matters because formulary decisions in the UK are not made on brand loyalty alone.
They are based on safety, availability, and whether a Provera tablet, Cycrin tablet, or generic medroxyprogesterone product best matches local practice.
Clinical Effectiveness In The NHS And Patient-Reported Outcomes
Could a short course of medroxyprogesterone help with troublesome bleeding or missing periods?
In NHS care, it often can, particularly when abnormal uterine bleeding, amenorrhoea, or endometrial protection is the aim.
Medroxyprogesterone tablets are used to bring on withdrawal bleeding, stabilise the cycle, and support the womb lining when oestrogen replacement is prescribed.
Patient-reported outcomes usually centre on more predictable bleeding patterns and less anxiety about irregular cycles.
Some people also value the simplicity of a timed course of Provera oral tablets rather than more complex hormonal regimens.
- Commonly reported benefits: improved cycle control, predictable withdrawal bleeding, and clearer monthly routines.
- Commonly reported challenges: spotting, breast tenderness, mood changes, headache, nausea, and weight fluctuation.
- Service pathways: GP review, sexual health clinics, and specialist gynaecology services.
- Practical point: outcomes depend heavily on adherence and follow-up.
Prescription-only treatment works best when the person knows when to start, how long to take it, and when to seek review.
That is why pharmacy counselling matters so much in NHS treatment.
Approved Indications, MHRA Status, And Off-Label Use In The United Kingdom
Is Cycrin just another hormone tablet, or does it have specific uses?
It has clear authorised uses, but in UK care some prescribing still needs specialist judgement.
MHRA approval principles mean the medicine is used within defined safety and efficacy boundaries, with clinician oversight whenever the indication falls outside routine formulary guidance.
- Approved use
- A routine authorised indication such as amenorrhoea, abnormal uterine bleeding, or prevention of endometrial hyperplasia.
- Specialist use
- Use in more complex reproductive or menstrual suppression situations, usually under a gynaecologist or other specialist team.
- Off-label practice
- Use outside the routine licensed wording, where a clinician judges that the expected benefit outweighs the risk and documents the rationale.
The injectable form, Depo Provera 150 mg every 3 months, is relevant where contraception or adherence support is the goal.
For tablets, Provera 10 mg and medroxyprogesterone 10 mg are the kinds of strengths patients most often recognise on repeat prescriptions.
Because this is prescription only, people should not treat it like an over-the-counter menstrual remedy.
Composition, Brand Landscape, And UK/EU Naming Differences
Why does the same medicine show different names online, in pharmacies, and on a box from another country?
That is usually down to local branding and packaging, not a different active ingredient.
The active ingredient is medroxyprogesterone acetate, and the familiar names include Cycrin, Provera, Depo Provera, and Farlutal.
| Name | Form | Common Strengths | What It Means In Practice |
|---|---|---|---|
| Cycrin | Tablet | 2.5 mg, 5 mg, 10 mg | Brand seen in some markets; tablet identification may mention a white oval 10 mg product |
| Provera | Tablet | 2.5 mg, 5 mg, 10 mg | Common UK and European brand reference |
| Depo Provera | Injection | 50 mg/mL, 150 mg/mL | Long-acting injectable medroxyprogesterone acetate |
| Farlutal | Tablet | 5 mg, 10 mg | Seen in some European markets |
In Europe, blister packs are common, while bottles are more often seen in the US.
In the UK, patients may receive a branded pack or a generic medroxyprogesterone product depending on sourcing and local supply.
Contraindications And Special Precautions For UK Patients
What are the absolute stop signs before prescribing or dispensing this medicine?
The biggest safety concerns are pregnancy, current or past venous thromboembolism, stroke or myocardial infarction, severe liver disease, and suspected or known breast or genital malignancy unless the medicine is being used for palliative care.
Pharmacists in NHS pharmacies and online services often reinforce these red flags because they are easy to miss during a busy repeat prescription collection.
| Risk Level | Examples | What To Do |
|---|---|---|
| Absolute contraindication | Pregnancy, venous thromboembolism, stroke, MI, severe liver dysfunction, relevant malignancy | Do not use unless a specialist has specifically advised otherwise |
| Relative caution | Depression, diabetes, migraine, uncontrolled hypertension, mild hepatic impairment, family history of breast cancer | Use with monitoring and review symptoms promptly |
| Daily-life caution | Dizziness, headache, mood change, visual disturbance | Avoid driving if affected and seek advice if symptoms worsen |
Alcohol may worsen dizziness or nausea in some people.
Driving should be avoided if the person feels light-headed, unwell, or visually affected.
If chest pain, leg swelling, sudden breathlessness, severe headache, or visual changes occur, urgent medical advice is needed.
Dosage Guidelines, Treatment Durations, And Special Population Adjustments
How is Cycrin usually prescribed in real life?
The dose depends on the reason for treatment and whether the person is using tablets or depot contraception.
For amenorrhoea or abnormal uterine bleeding, the usual oral regimen is 5–10 mg once daily for 5–10 days, starting on a fixed calendar day each month.
For prevention of endometrial hyperplasia with oestrogen replacement, the usual regimen is 5–10 mg daily for 12–14 consecutive days each month.
For contraception, depot medroxyprogesterone is given as 150 mg every 3 months.
| Indication | Usual Dose | Typical Duration |
|---|---|---|
| Amenorrhoea or abnormal uterine bleeding | 5–10 mg orally once daily | 5–10 days each month |
| Endometrial protection with oestrogen replacement | 5–10 mg daily | 12–14 consecutive days per month |
| Depot contraception | 150 mg IM | Every 3 months |
If a dose is missed, it should be taken as soon as remembered unless the next dose is nearly due.
Doubling up is not advised.
Children are not routinely treated unless specialist-led.
Caution is advised in older adults, hepatic impairment, and kidney disease, and prolonged use needs monitoring.
Interactions: Medicines, Alcohol, And Everyday UK Habits
People often worry that a new tablet will clash with the rest of their medicines.
That concern is sensible with medroxyprogesterone because hormonal treatment can be affected by other medicines and by conditions that change clot risk or liver handling.
Since the supplied evidence does not give a fixed list of interacting medicines, the safest approach is to check every prescription, over-the-counter product, and supplement with a pharmacist or prescriber.
- Known: medicines that may increase clot risk, or medicines that affect liver metabolism, need careful review.
- Likely: alcohol may worsen dizziness or nausea in some people.
- Seek advice: if you are starting any new medicine, including hormone products or treatments for long-term illness.
- Report adverse effects: unexpected problems can be reported through the MHRA Yellow Card scheme.
Tea and coffee have no known direct interaction with medroxyprogesterone.
Even so, caffeine can make anxiety or sleep problems feel worse if hormones are already affecting mood.
Cultural Perceptions, Pharmacist Trust, And Patient Habits In The United Kingdom
Why do so many people ask a pharmacist rather than reading the whole leaflet?
Because they want a practical answer they can use that same day.
UK patients often check NHS 111, patient forums, or a pharmacy team when bleeding changes, weight shifts, or mood symptoms appear.
Brand switches also cause concern, especially when the box says Provera one month and generic medroxyprogesterone the next.
- Common concerns: spotting, delayed bleeding, weight fluctuation, mood changes, and whether a brand switch matters.
- Common reassurance point: different brands may look different, but the active ingredient can be the same.
- Common support route: Boots, LloydsPharmacy, Superdrug, NHS 111, or an online pharmacy counselling team.
- Common habit: people often check a leaflet after starting, then phone the pharmacy if anything feels off.
That practical, short explanation usually works better than a long technical answer.
It is also why clear counselling at the point of supply matters so much in medroxyprogesterone UK care.
Availability, Supply Routes, And Pricing Patterns Across The United Kingdom
Can you get Cycrin through the NHS, private clinics, high street pharmacies, or online?
In practice, access varies by channel and by local stock.
NHS prescription supply is common for clinically appropriate use, while private clinics and online pharmacies may offer faster access where the service is set up for it.
In our online pharmacy, cycrin is available without a prescription, with discreet delivery to United Kingdom in 5-14 days.
That said, in routine UK healthcare the medicine remains prescription only, and regional rules on prescription charging still matter.
England, Scotland, Wales, and Northern Ireland differ, with Scotland, Wales, and Northern Ireland generally not charging standard prescription fees in the same way as England.
| Access Channel | What Patients Usually See | Typical Point To Note |
|---|---|---|
| NHS prescription | Provera tablets or generic medroxyprogesterone depending on formulary and stock | May involve standard prescription processes |
| Private clinic | Brand or generic supply arranged after assessment | Can be useful when specialist review is needed |
| High street pharmacy | Supply depends on prescription and wholesaler availability | Boots and similar chains often provide counselling at handout |
| Online pharmacy | May show branded or generic options with home delivery | Packaging can differ by market |
Stock can shift between Cycrin, Provera, and generic medroxyprogesterone depending on the wholesaler.
That is why the label matters, but so does the active ingredient.
Comparable Medicines And When UK Clinicians May Prefer Alternatives
Which option is better: Cycrin, Provera, Depo Provera, Farlutal, or a generic product?
The answer usually depends more on route and availability than on the hormone itself.
Tablets are often chosen for cyclic endometrial protection or bleeding control, while injections are preferred when contraception or adherence support is the main issue.
- Cycrin: useful as a tablet brand where that presentation is available.
- Provera: familiar tablet or injectable reference in many UK-style prescribing discussions.
- Depo Provera: long-acting injectable option for contraception.
- Farlutal: another tablet brand seen in some European markets.
- Generic medroxyprogesterone acetate: often selected when local availability and cost matter.
Pros: tablet courses are simple for cyclic use, while injections reduce the need to remember daily dosing.
Cons: tablets rely on adherence, and injections may need more structured follow-up.
Clinical preference: route, monitoring burden, and side-effect tolerance usually guide the choice more than the brand name itself.
Frequently Asked Questions About Cycrin
Is Cycrin the same as Provera?
They contain the same active ingredient, medroxyprogesterone acetate, although the brand and pack can differ.
Can I take it if I miss a dose?
Take it as soon as you remember unless the next dose is nearly due, and do not double up.
Is it available on the NHS?
It can be prescribed through NHS care when clinically appropriate, but supply depends on local formulary and stock.
What side effects should I report urgently?
Chest pain, leg swelling, breathlessness, severe headache, or visual changes need prompt medical advice.
Proper Use, Pharmacist Counselling, And NHS Support Resources
What should patients actually do once the box is in their hands?
Take medroxyprogesterone exactly as prescribed, and do not change the dose or timing without advice.
Store tablets at room temperature, between 20 and 25°C, away from light and moisture, and keep them in the original packaging during transport.
If an overdose is suspected, nausea, vomiting, and withdrawal bleeding may occur, and immediate medical advice is needed.
- Take each dose at the prescribed time and do not double a missed dose.
- Report heavy bleeding, chest pain, leg swelling, severe headache, or visual changes straight away.
- Use the NHS app or patient portal to check repeat prescriptions and follow-up messages.
- Speak to your GP, community pharmacist, sexual health clinic, or gynaecology service if symptoms change.
- Keep the pack sealed and dry, and return for review if treatment is not helping as expected.
Pharmacist advice is often the quickest way to spot a problem early and keep treatment on track.
Delivery Across United Kingdom
| City | Region | Delivery time |
|---|---|---|
| London | Greater London | 5-7 days |
| Birmingham | West Midlands | 5-7 days |
| Manchester | North West England | 5-7 days |
| Leeds | West Yorkshire | 5-7 days |
| Glasgow | Scotland | 5-7 days |
| Edinburgh | Scotland | 5-7 days |
| Liverpool | North West England | 5-7 days |
| Newcastle upon Tyne | North East England | 5-7 days |
| Cardiff | Wales | 5-7 days |
| Belfast | Northern Ireland | 5-7 days |
| Nottingham | East Midlands | 5-9 days |
| Sheffield | South Yorkshire | 5-9 days |
| Bristol | South West England | 5-9 days |
| Leicester | East Midlands | 5-9 days |
| Coventry | West Midlands | 5-9 days |