Contraceptives for premenopause: choice

Premenopause is the period when the cycle is still ongoing, but hormonal levels are already changing, with periods becoming irregular, hot flashes, mood swings, and other symptoms appearing. During this time, the likelihood of pregnancy decreases, but does not disappear completely, and for many women, quality of life deteriorates due to fluctuating sex hormone levels. [1]

Combined oral contraceptives, which contain both estrogen and progestin, can perform multiple functions for some women. They provide contraception, regulate hormonal fluctuations, reduce the severity of hot flashes and night sweats, stabilize mood, and make bleeding more predictable and less heavy. For many, this is a more comfortable option than simply "tolerating" the symptoms. [2]

A number of professional societies allow the use of combined hormonal contraception in healthy, carefully selected women up to approximately 50 years of age, provided there are no risk factors for thrombosis, stroke, or other serious complications. This also applies to those who are perimenopausal and need both reliable contraception and symptom control. [3]

However, the combination of estrogen and progestogen is not a universal solution. For some women, the risks may outweigh the potential benefits. These factors include smoking after age 35, obesity, hypertension, migraine with aura, a history of thrombosis, and other conditions listed in the international medical eligibility criteria for contraception. [4]

An important principle: the choice of regimen is always individual. For some, it makes more sense to switch to progestogen-only methods, a levonorgestrel intrauterine system, or subsequent therapy to alleviate menopausal symptoms. For others, low-dose combination pills may be the optimal solution for several years. [5]

Table 1. Objectives of hormonal contraception in premenopause

Task	How combination pills can help
Preventing unwanted pregnancy	Reliable suppression of ovulation and changes in cervical mucus
Cycle control	Regular bleeding, predictable cycle
Relief from hot flashes and sweating	Balancing estrogen levels, reducing hormonal fluctuations
Reducing blood loss	Less volume and duration of menstrual flow
Prevention of bone loss	Maintaining estrogen levels, reducing the rate of bone mineral density loss

What is premenopause and its symptoms?

Premenopause begins when the usual regularity of the cycle is disrupted: periods may occur more frequently or less frequently, menstruation may become heavier or lighter, and the length of the cycle may fluctuate. This is due to the gradual depletion of ovarian reserve and irregular ovulation. The average age for the onset of these changes is around 45 years, but there is a wide range. [6]

Against this background, classic vasomotor symptoms appear: hot flashes, night sweats, a sudden feeling of heat in the upper body, palpitations, and sometimes a sensation of a "wave" of heat with flushing of the skin. These symptoms can be episodic and mild, or they can seriously disrupt sleep, work performance, and daily activities. [7]

In addition to hot flashes, emotional and cognitive changes are significant. Women often describe increased irritability, anxiety, mood swings, tearful episodes, as well as decreased concentration and a subjective feeling that their "brain functions worse." These symptoms are not always related solely to hormones, but hormonal fluctuations can make them more pronounced. [8]

Menstrual bleeding also changes. Some women experience heavy and prolonged periods, sometimes with clots, leading to iron deficiency anemia and severe fatigue. Others, on the contrary, experience short, light periods, but they don't completely disappear, creating a feeling of "endless instability." [9]

Finally, perimenopause is a period when fertility has already declined, but the risk of unplanned pregnancy still exists. Moreover, pregnancy after age 40 is associated with a higher risk of complications for both the woman and the child. Therefore, the issue of reliable contraception remains relevant until the onset of true menopause. [10]

Table 2. Typical symptoms of premenopause

Group of symptoms	Possible manifestations
Cycle and bleeding	Irregular periods, changes in the duration and amount of bleeding
Vasomotor symptoms	Hot flashes, night sweats, palpitations
Emotional sphere	Irritability, anxiety, worsening mood
Dream	Difficulty falling asleep, frequent awakenings
Reproductive issues	Maintaining the risk of unplanned pregnancy

How combination pills help with premenopausal symptoms

Combined oral contraceptives contain a low dose of estrogen and progestogen. Their main advantage during premenopause is that they balance the natural hormonal fluctuations typical of this period. As a result, fluctuations in the ovaries' own hormone levels are reduced, giving the body a more stable environment, which impacts both the cycle and well-being. [11]

Studies show that many women experience a reduction in the severity of vasomotor symptoms, such as hot flashes and night sweats, when taking combination pills. Some regimens also use estrogen on the days when they typically take a break to prevent a drop in hormone levels and a deterioration in well-being. These regimens can further reduce the frequency of hot flashes and improve quality of life. [12]

Combination pills make bleeding more predictable and less heavy. This is especially important during premenopausal menorrhagia, when a woman loses excessive blood and develops anemia. As contraceptive recommendations for women over 40 indicate, low-dose combination pills can reduce blood loss and menstrual pain. [13]

An additional benefit is its effect on bone tissue. By maintaining estrogen levels, combined pills can help slow the loss of bone mineral density, which is especially important for women with low body weight or other risk factors for osteoporosis. Several guidelines indicate that combined contraception can be considered a bone-protective option for medically eligible women under 50 years of age, as long as contraception is needed. [14]

Finally, combined pills offer contraception during a period when pregnancy is no longer desired but still possible. Fertility declines as women approach menopause, but unplanned pregnancies in women over 40 are still common, and such pregnancies are associated with increased risks of hypertension, gestational diabetes, and birth complications. [15]

Table 3. Potential benefits of combination pills in premenopause

Effect	Clinical significance
Balancing hormonal levels	Reducing fluctuations in well-being and symptoms
Weakening of the tides	Improved sleep and daytime well-being
Bleeding control	Lower risk of anemia, higher comfort
Bone tissue support	Slowing down the loss of bone mineral density
Contraception	Prevention of high-risk unwanted pregnancy

Risks, contraindications and limitations of use

Despite their potential benefits, combination pills are not suitable for everyone. Estrogen increases the risk of venous thrombosis and, to a lesser extent, stroke and heart attack, especially in the presence of additional factors: age over 35 combined with smoking, obesity, uncontrolled hypertension, diabetes with vascular complications, and a history of thrombosis. International medical eligibility criteria consider such conditions as serious limitations or direct contraindications. [16]

Migraine with aura is a distinct condition. For women with this form of migraine, combined hormonal contraception is considered contraindicated due to the increased risk of ischemic stroke. For migraine without aura, the decision is made individually, taking into account age, symptom intensity, and other vascular risk factors. [17]

Combination tablets are not prescribed for patients with a history of venous thrombosis, pulmonary embolism, severe liver disease, or certain breast or endometrial tumors. Caution is also required in the presence of serious lipid metabolism disorders, severe arterial hypertension, or complex cardiovascular disease. In all these cases, the physician will select alternative treatments. [18]

Age alone is not an absolute prohibition. Some guidelines indicate that healthy, non-smoking women without significant risk factors can use low-dose combination pills until approximately age 50. However, with age, the underlying risk of thrombosis and cardiovascular events increases, so the older the woman, the more stringent the risk assessment should be. [19]

Side effects not directly related to major complications are also important. Combination pills can cause headaches, breast swelling, spotting, mood changes, and slight weight gain due to fluid retention. These usually subside after a few months, but if symptoms are severe or concerning, the regimen should be reconsidered. [20]

Table 4. Situations when combination pills are often not recommended

Condition or risk factor	Reason for caution
Smoking after 35 years	Significant increase in vascular risks
History of venous thrombosis	High risk of recurrence
Migraine with aura	Increased risk of ischemic stroke
Uncontrolled hypertension	Increased risk of stroke and heart attack
Severe liver disease	Hormonal Metabolism Disorders and the Risk of Progression
Certain hormone-dependent tumors	The danger of stimulating tumor growth

Alternatives: Other hormonal and non-hormonal options

If combination pills are contraindicated or a woman does not want to take them, there are other options. For those seeking contraception alone, intrauterine systems (IUSs), copper-containing IUDs, and progestogen-only pills can be considered. These do not contain estrogen and therefore do not increase the risk of venous thrombosis as much as combination pills. [21]

The levonorgestrel intrauterine system (IUS) simultaneously provides contraception and significantly reduces menstrual blood loss, which is particularly beneficial for heavy and painful periods during premenopause. In guidelines for women over 40, this method is often considered one of the preferred methods, especially in the presence of anemia or contraindications to estrogen. [22]

If the primary problem is severe hot flashes and night sweats, but contraception is no longer needed or is implemented by another method, menopausal hormone therapy regimens become the first choice. These regimens differ in composition and dosage from combined contraception and are not intended to suppress ovulation. Professional societies emphasize that menopausal therapy is not considered reliable contraception. [23]

For women who cannot use estrogen in any form, progestogen-only methods and non-hormonal approaches to hot flash control are considered. Menopause guidelines discuss medications that affect the central nervous system, as well as lifestyle modifications: maintaining a healthy weight, stopping smoking, limiting alcohol, engaging in regular physical activity, and managing stress. [24]

In some cases, a combination of methods is possible. For example, a levonorgestrel intrauterine system (IUS) can provide endometrial protection and contraception, while low-dose estrogen is administered orally or transdermally to control hot flashes. Such regimens require particularly careful selection and monitoring by a physician experienced in menopausal medicine. [25]

Table 5. Alternatives to combined contraceptive pills

Method	Main advantages	Main limitations
Levonorgestrel intrauterine system	Significant reduction in blood loss, contraception	Does not affect tides, requires installation
Copper-containing intrauterine device	Very high efficiency, hormone free	May increase menstrual pain and bleeding
Purely progestogen drugs	Possible if there are contraindications to estrogen	Irregular spotting
Hormonal therapy for menopause	Effective relief from hot flashes and sweating	It is not a contraceptive
Non-hormonal approaches	No hormonal influence	The effect is often moderate.

Practical steps and questions to discuss with your doctor

Before prescribing combination pills for premenopause, the doctor will need to collect a detailed medical history, including information on smoking, body weight, blood pressure, family history of thrombosis, migraines, cardiovascular disease, and cancer. Baseline tests and measurements are often recommended to assess baseline risk. This helps determine whether combination pills are suitable at all. [26]

Treatment goals are then formulated. For one woman, the priority is reliable contraception and cycle control, for another, relief of hot flashes and normalized sleep, and for a third, reduction of heavy bleeding. A clear understanding of priorities helps choose a regimen: a standard cyclic regimen, an extended regimen with infrequent bleeding, or a switch to other methods. [27]

It is important to discuss the duration of use of combination pills and the subsequent transition plan in advance. Most often, this regimen is considered a temporary solution for several years until menopause or until the age at which the risk of vascular complications becomes too high. After discontinuing the combination pill, the onset of menopause is assessed, and transition to menopausal therapy is discussed if necessary. [28]

It's helpful for women to know the early signs of serious complications. International guidelines detail symptoms that require immediate medical attention: sudden pain or swelling in a leg, shortness of breath and chest pain, sudden speech or vision problems, and a severe, unusual headache. This information reduces anxiety and allows for prompt action if something goes wrong. [29]

Finally, it is important to regularly reassess the decision. With age, weight changes, the development of new medical conditions, or smoking cessation, the benefit-risk balance changes. The guidelines emphasize the need for periodic review of contraceptive methods in women of advanced reproductive age and planning a smooth transition from contraception to menopausal therapy, if needed. [30]

Table 6. Questions to ask your doctor

Topic of the question	Example of wording
Suitability of the method	Is combined hormonal contraception suitable for me given my medical conditions and habits?
Goals of therapy	Which of my symptoms will this method help improve, and which will it not?
Duration	How long can I safely take these pills?
Alternatives	What are my options if this method is not suitable for me or is not suitable for me?
Monitoring and security	What symptoms mean you need to see a doctor immediately?

Brief FAQ

Is it possible to use combination pills solely for symptom relief if pregnancy is no longer likely?
Theoretically, yes, but in any case, combined hormonal contraception remains contraception, not a classic menopause therapy. If contraception is no longer an option, the doctor often considers switching to menopausal hormone therapy regimens, which provide comparable symptom relief with lower estrogen doses. [31]

Until what age can combination pills be used during premenopause?
Most guidelines allow use in healthy, non-smoking women with no significant risk factors up to about age 50, but the decision is always individual. The older the woman and the more risk factors she has, the more likely her doctor will suggest alternative methods. [32]

How can I tell if I've reached menopause if I'm taking combination pills?
While taking combination pills, my natural cycle is suppressed, so I can't rely on my menstrual cycle. After stopping the pill, my doctor may recommend a period of observation and tests to assess whether my ovarian function is continuing. Sometimes combination pills are replaced with other regimens that allow me to better assess the onset of menopause. [33]