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MEDICAL INFORMATION
Slynd Key Facts
What is Slynd?
Slynd is the brand name for drospirenone and is available as a progestin-only oral contraceptive tablet. It is also known as a POP (progestin-only pill) or “mini-pill” and does not contain oestrogen.
What dosages is Slynd available in?
Slynd is available as 4 mg drospirenone tablets. Each blister pack contains 28 tablets: 24 white active tablets (each containing 4 mg drospirenone) and 4 green inert tablets (containing no active hormone). The recommended dose is one tablet taken orally once daily for 28 consecutive days.
What is Slynd used for?
Slynd is a progestin-only oral contraceptive used by females of reproductive potential to prevent pregnancy.
How does Slynd work?
Slynd works primarily by suppressing ovulation. It contains drospirenone, a synthetic progestin and spironolactone analogue with anti-mineralocorticoid activity.
By maintaining consistent progestin levels throughout the 28-day cycle — including during the 4-day inert tablet phase — Slynd provides continuous ovulation suppression. Additional contraceptive effects may include changes to cervical mucus and the uterine lining that make fertilisation and implantation less likely.
How do I take Slynd?
Take one Slynd tablet orally once daily, at approximately the same time each day, for 28 consecutive days:
• Days 1–24: Take one white active tablet daily
• Days 25–28: Take one green inert tablet daily
Begin a new blister pack immediately after finishing the previous pack, on the same day of the week.
Day 1 Start: Start your first pack on the first day of your menstrual period.
Switching from another method: Start Slynd on the day your next dose or pack of your previous method would have been due (or on the day of removal for implants, IUDs, or IUS).
Missed white (active) tablets:
• If you miss 1 white tablet: Take it as soon as you remember. No back-up contraception is needed.
• If you miss 2 or more white tablets: Take the last missed tablet as soon as possible and continue one tablet per day. Use non-hormonal back-up contraception (e.g. condoms) for the next 7 days.
Missed green (inert) tablets: No action required — skip the missed green tablet and continue as normal.
Gastrointestinal disturbance: If you vomit or have diarrhoea within 3–4 hours of taking a tablet, take the next day’s tablet as soon as possible (within 12 hours of your usual time). If more than 2 tablets are missed as a result, use back-up contraception for 7 days.
Is it safe for me to take Slynd?
Slynd is a safe and effective contraceptive when used as directed for its FDA-approved indication. However, like all medicines, it may not be suitable for everyone.
Do not take Slynd if you have:
• Renal (kidney) impairment
• Adrenal insufficiency
• Presence or history of cervical cancer or progestin-sensitive cancers
• Liver tumours (benign or malignant) or hepatic (liver) impairment
• Undiagnosed abnormal uterine bleeding
Tell your healthcare provider before starting Slynd if you:
• Are pregnant or think you may be pregnant
• Have ever had blood clots (DVT, pulmonary embolism, stroke, or heart attack)
• Have diabetes (you may need closer blood sugar monitoring)
• Have a history of depression
• Take medicines that may raise potassium levels (e.g. ACE inhibitors, potassium-sparing diuretics, NSAIDs, heparin) — a serum potassium blood test should be performed before and during the first treatment cycle
Note: Slynd contains drospirenone, which has anti-mineralocorticoid activity comparable to a 25 mg dose of spironolactone. It has the potential to cause elevated potassium (hyperkalemia), particularly in high-risk patients.
Slynd Common Side Effects
Common side effects of Slynd (occurring in >1% of users in clinical studies):
• Acne (3.8%)
• Metrorrhagia / breakthrough bleeding (2.8%)
• Headache (2.7%)
• Breast pain (2.2%)
• Weight gain (1.9%)
• Dysmenorrhea / menstrual cramps (1.9%)
• Nausea (1.8%)
• Vaginal haemorrhage (1.7%)
• Decreased libido (1.3%)
• Breast tenderness (1.2%)
• Irregular menstruation (1.2%)
Blood-sugar irregularities are also very common — up to 64.4% of users experience unscheduled bleeding or spotting in the first cycle, decreasing to approximately 40% by cycle 13.
Slynd Serious Side Effects
Serious side effects are uncommon with Slynd but contact your healthcare provider immediately if you experience any of the following:
Hyperkalemia (high potassium): Weakness or numbness in an arm or leg, heart palpitations or irregular heartbeat, nausea, vomiting, severe chest pain, or shortness of breath. Risk is highest in patients with kidney or adrenal conditions, or those taking potassium-raising medications.
Thromboembolic disorders (blood clots): Leg pain that won’t go away, sudden severe headache, sudden shortness of breath, sudden vision change, chest pain, limb weakness, or difficulty speaking. Discontinue Slynd immediately if a clot occurs.
Ectopic pregnancy: Severe abdominal or pelvic pain in a patient who becomes pregnant while on Slynd may indicate a pregnancy outside the uterus — a medical emergency requiring urgent care.
Liver problems: Yellowing of the skin or eyes (jaundice), dark urine, pale stools, or severe abdominal pain. Discontinue Slynd if jaundice or acute liver disturbance develops.
Bone loss: Drospirenone lowers oestrogen levels; whether this causes clinically relevant bone mineral density loss is unknown.
Depression: Carefully observe patients with a history of depression. Discontinue Slynd if depression recurs to a serious degree.
Effects of other drugs, drug classes and over-the-counter products on Slynd
Drugs that reduce Slynd’s effectiveness (CYP3A4 inducers — use back-up contraception):
• Anticonvulsants: phenytoin, carbamazepine, oxcarbazepine, felbamate, rufinamide, barbiturates
• Antibiotics/antifungals: rifampicin, rifabutin, griseofulvin
• Other: efavirenz, bosentan, aprepitant, St. John’s Wort
Back-up non-hormonal contraception should be used while taking these medicines and for 28 days after stopping them.
Drugs that increase drospirenone (DRSP) exposure (CYP3A4 inhibitors — monitor potassium):
• Azole antifungals: ketoconazole, itraconazole, voriconazole
• HIV/HCV protease inhibitors: indinavir, boceprevir
• Antibiotics: clarithromycin
Co-administration with strong CYP3A4 inhibitors has been shown to increase DRSP exposure by up to 2.68-fold.
Drugs that may increase serum potassium (hyperkalemia risk — check potassium levels):
• ACE inhibitors
• Angiotensin-II receptor antagonists (ARBs)
• Potassium-sparing diuretics
• Potassium supplements
• Heparin
• Aldosterone antagonists (e.g. spironolactone)
• NSAIDs
Always inform your healthcare provider and pharmacist of all medicines, supplements, vitamins, and herbal products you are taking.
Who makes Slynd?
Exeltis USA, Inc.
Is Slynd safe in pregnancy?
Slynd is not recommended during pregnancy and should be discontinued if pregnancy is confirmed during treatment.
Based on epidemiological studies and meta-analyses, there is little or no increased risk of birth defects in children of females who inadvertently use oral progestins during early pregnancy. However, there is no benefit to continuing hormonal contraception once pregnancy is confirmed.
Fertility: You may stop Slynd whenever you wish. Fertility is expected to return promptly after stopping.
Breastfeeding: Drospirenone is excreted in breast milk in negligible amounts. The estimated average infant daily dose for an exclusively breastfed infant is approximately 840 ng/kg/day (relative infant dose 1.5%), which is not expected to cause adverse effects. No adverse effects on milk production, infant health, growth, or development have been found with progestin-only pills in general.
What is the generic name for Slynd?
NowPatient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information on this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.
The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.
HOW IT WORKS
Order Delivery Guide


How will my order be delivered?
All orders are shipped in discreet and unmarked packaging, making them suitable for delivery to your home, workplace, or a neighbour. For your protection and safety, your first order can only be delivered to the address that is registered with NowPatient. Future orders can be delivered to any address you choose.
Where does NowPatient deliver?
NowPatient delivers to the UK, Europe, and worldwide. NHS services (such as NHS Online Pharmacy and NHS Pharmacy First) are available to patients in England only. Our private services and online pharmacy are available across the UK, with international shipping available to European and worldwide addresses. Please note that some remote or rural postcodes may experience slightly longer delivery times, and tracking availability for worldwide orders may vary depending on the destination country.
What delivery options are available?
UK orders are shipped via Royal Mail Tracked 24 & Signed, with next-day delivery as standard. European deliveries are sent via Royal Mail Tracked and typically arrive within 3–5 working days. Worldwide deliveries take 7–21 working days and are tracked where available in the destination country.
Delivery charges apply for most services. Shipping is included in the price for patients using our Get Treated Privately service in England, and is free for NHS Quit Smoking Service orders.
When will my order be dispatched?
We aim to dispatch all orders placed Monday to Friday before 3:00pm on the same working day. Orders placed after 3:00pm, or over weekends and bank holidays, will be dispatched on the next available working day.
Do you offer next-day delivery?
Yes. All UK orders are shipped via Royal Mail Tracked 24 & Signed, which delivers next day as standard. To qualify for same-day dispatch, please place your order before 3:00pm Monday to Friday. Orders placed after this time, or over weekends and bank holidays, will be dispatched on the next available working day.
Do you deliver temperature-sensitive or cold-chain medications?
Yes. We use a specialist courier service for all thermo-sensitive deliveries (such as insulin, GLP-1 weight loss injections like Mounjaro, and other refrigerated medications). Cold chain-validated packaging is used throughout the entire delivery process to ensure product quality, safety, and efficacy are always maintained.
How is cold-chain packaging handled?
Temperature-sensitive products are packed using validated cold chain packaging that maintains the required storage temperature throughout transit. Your parcel will normally receive an estimated delivery window from the courier on the day of delivery, so you can ensure someone is available to receive it. If you have concerns about receiving a cold-chain delivery, please contact our customer care team in advance.
Do you deliver controlled drugs?
Yes. Controlled drugs are delivered using a specialist courier service to ensure secure and compliant handling in accordance with UK regulations. These deliveries will always require a signature upon receipt.
How do I track my order?
Once your order has been dispatched, you will receive a dispatch notification containing your tracking details. You can also view your tracking information at any time in the 'Notification Feed' section on your account dashboard. Tracking is available for all delivery options.
Will I receive status updates about my order?
Yes. NowPatient uses a structured notification system to keep you fully informed throughout the order process. Every time your order status changes — from approval through to dispatch and delivery — you will be notified immediately. Notifications are sent via email and appear in the 'Notifications' section of your account homepage (accessible via the bell icon). This includes updates when your treatment is approved, dispensed, and shipped.
What order statuses will I see?
You can expect to see the following key status updates: Order Received, Prescription Approved (where applicable), Order Dispensed, Dispatched (with tracking reference), and Delivered.
Can I change my delivery address?
For your first order, delivery must be made to the address registered with NowPatient at the time of sign-up. This is a safety measure to verify your identity and protect your account. From your second order onwards, you can select from any saved address in your account or add a new delivery address during checkout.
Can I have my order delivered to my workplace or a neighbour?
Yes. From your second order onwards, you can have your medication delivered to any address, including your workplace, a family member's address, or a neighbour. All parcels are sent in discreet, unmarked packaging, so the contents will not be identifiable.
How do I update or add a new delivery address?
You can manage your delivery addresses directly within your NowPatient account settings. Additional addresses can also be added during the checkout process when selecting your delivery address. Simply select 'Add a new address' and enter the required details.
What should I do if my order hasn't arrived?
If you have not received your order within the expected delivery window, please first check your tracking details in the 'Notification Feed' section of your account dashboard. If after 10 days of dispatch you have still not received your delivery, please contact our customer care team and we will work to resolve the issue as quickly as possible.
What if my order arrives damaged?
If your order arrives in a damaged condition, please do not use the medication and contact our customer care team immediately. Please retain the original packaging and, if possible, take photographs of the damage, as this will help us raise a claim with the courier and arrange a replacement for you as quickly as possible.
My tracking shows delivered but I haven't received my parcel — what should I do?
First, check with any neighbours or safe locations at your property (such as a porch or outbuilding). If you still cannot locate your parcel, please contact our customer care team and we will investigate the matter with the courier on your behalf.
What happens if I miss my delivery?
If you miss a delivery, the courier will typically leave a card with instructions for rescheduling or collecting your parcel from a local depot. For cold-chain deliveries, it is particularly important to arrange redelivery promptly to maintain product integrity. If you have concerns about a missed cold-chain delivery, please contact our customer care team for guidance.
If you ship international, do I need to handle duties?
No. Our prices include customs duties, wherever you are located.
How are NHS repeat prescriptions delivered?
Once your GP has approved your prescription request, NowPatient's regulated online pharmacy will dispense and dispatch your medication. You will be notified at each stage of the process. NHS prescriptions are dispatched via Royal Mail Tracked 24 & Signed for next-day delivery, provided the order is placed before 3:00pm on a
working day.
Is delivery free for NHS prescriptions?
No. There is a small cost applied to all NHS prescription deliveries. This allows us to keep our service operational. NHS Quit Smoking Service orders qualify for free delivery. If you are using the Get Treated Privately service in England, shipping is included within the consultation and treatment price.
Can I specify a preferred delivery date for my NHS prescription?
At this time, NowPatient dispatches orders on the same working day if placed before 3:00pm Monday to Friday. All UK NHS prescriptions are sent via Royal Mail Tracked 24 & Signed for next-day delivery, so you can plan accordingly once you receive your dispatch notification.
How are private prescription medications delivered after a telehealth consultation?
Following your telehealth or video consultation, if a treatment is prescribed, it will be added to your cart automatically. After you complete checkout and payment, your order is sent to NowPatient's regulated online pharmacy for processing. You will receive status updates at every stage and your medication will be dispatched in discreet, unmarked packaging.
How quickly will I receive medication after my consultation?
If your consultation and checkout are completed before 3:00pm on a working day, we aim to dispatch your medication the same day. The total time to delivery will depend on the delivery method you select at checkout.
Is the packaging discreet?
Yes. All NowPatient orders are shipped in plain, unmarked packaging with no branding or indication of the contents on the outside. The packaging is suitable for delivery to your home, workplace, or a neighbour.
Will my parcel require a signature?
Yes. All UK orders are sent via Royal Mail Tracked 24 & Signed, which requires a signature upon delivery. Controlled drug deliveries will always require a signature regardless of the shipping method. For cold-chain deliveries, a signature is required to ensure someone is available to receive the medication promptly and maintain product integrity. For European and worldwide orders, signature requirements may vary depending on the destination country and the service available.
How do I contact NowPatient about a delivery issue?
You can reach our customer care team through the NowPatient website or app. Go to your account and use the Help or Contact Us section to raise a query. Our team is available to assist with any delivery-related concerns including missing parcels, tracking queries, or delivery address changes.
What are NowPatient's customer care hours?
Please visit the Contact Us section of the NowPatient website or app for up-to-date information on our customer care operating hours and available contact methods.
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Meet Our Medical Team
We are a broad skilled and passionate group of clinicians with experience of operating in regulated health systems in the United Kingdom & United States. Providing excellent care and advice is at the heart of everything we do. You can read more about our medical team by visiting the medical team page or learn more about how we curate content by visiting our editorial process


























