Can I take Nalvee and Transdermal spray together?
Drug interaction guide
Originally published 14 Mar 2026
Meets Patient’s editorial guidelines
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Using these two medications together can increase the risk of developing blood clots (such as deep vein thrombosis or pulmonary embolism) and may increase the risk of cardiovascular issues like stroke or heart attack.
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Why this happens
Nalvee is a combined oral contraceptive containing ethinylestradiol and drospirenone. Transdermal sprays (such as Lenzetto) typically contain estradiol for hormone replacement therapy (HRT). Taking two different forms of oestrogen simultaneously significantly raises the total oestrogen levels in your body. High levels of oestrogen promote the production of clotting factors in the liver, making the blood 'stickier' and more prone to forming dangerous clots.
What you should do
Back to contentsDo not use these two medications together. They are generally used for different purposes (contraception vs. menopause symptom relief) and should not be combined. If you have been prescribed both, speak to your doctor or pharmacist immediately to clarify your treatment plan. Seek urgent medical help if you experience sudden chest pain, shortness of breath, or painful swelling in one leg.
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Using other medicines
Back to contentsTaking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.
Disclaimer
This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.
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Article history
The information on this page is written and peer reviewed by qualified clinicians.
14 Mar 2026 | Originally published

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