Dante Carrillo
Weight loss medications are often sought by women hoping to have a healthy pregnancy or to conceive. However, the impact of these drugs on pregnancy is not well understood, and the benefits may be minimal or non-existent. Some studies have linked weight loss drugs with an increased risk of miscarriage, fetal stroke, and other defects. The U.S. Food and Drug Administration has advised pregnant women and women trying to conceive to avoid vinpocetine, an ingredient that can cause miscarriage and decreased fetal weight. Other weight loss drugs like phentermine, sibutramine, and bupropion are also associated with potential risks during pregnancy. While rapid weight loss can negatively impact milk production, it is recommended to focus on diet and exercise rather than medication during pregnancy and postpartum.
| Characteristics | Values |
|---|---|
| FDA advice | Pregnant women and women who could become pregnant should avoid vinpocetine |
| Weight loss medication and pregnancy | All weight loss medications are contraindicated during pregnancy |
| Weight loss medication and breastfeeding | All weight loss medications are contraindicated during breastfeeding |
| Weight loss medication and fertility | Weight loss medication may make birth control pills less effective |
| Weight loss medication and miscarriage | Weight loss medication may increase the risk of miscarriage |
| Weight loss medication and birth defects | Bupropion may increase the risk of birth defects |
| Weight loss medication and fetal health | Phentermine has been linked to fetal stroke, low birth weight, and premature birth |
| Weight loss medication and maternal health | Phentermine may increase the risk of gestational diabetes |
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What You'll Learn
Weight loss medications and miscarriage
Weight loss medications and fertility
People who are struggling with fertility due to their weight should talk to their doctor about weight-loss options, including new weight-loss drugs. However, it is important to not try to conceive while on these medications. Weight loss medications can decrease appetite and make patients eat less food, leading to rapid weight loss. This can increase fertility, but not because of the pills or injections.
Weight loss medications and pregnancy
All weight loss medications are contraindicated during pregnancy and breastfeeding. For pregnant patients who are overweight or obese, the focus should be on nutrition therapy, physical activity, and behaviour modification. Weight loss medications can increase the risk of miscarriage and cause birth defects, depending on the type and strength of the medication. Common weight loss medications to avoid during pregnancy include phentermine, sibutramine, orlistat, bupropion, and amphetamines. Bupropion, for example, has been linked to an increased risk of miscarriage. Phentermine has been associated with fetal stroke and may increase the risk of gestational diabetes.
Additionally, some weight loss medications may interact with hormonal birth control and make them less effective. Tirzepatide, for example, which is marketed as Mounjaro for diabetes and Zepbound for obesity, may render birth control pills less effective. As such, patients taking tirzepatide should adopt a non-hormonal form of birth control.
Weight loss medications and postpartum health
Rapid weight loss can negatively impact milk production. Therefore, it is recommended that patients focus on diet and exercise instead of weight loss medication during the postpartum phase.
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Herbal supplements and miscarriage
The use of herbal supplements during pregnancy is a complex issue that requires careful consideration. While some studies suggest that certain herbal medicines may help prevent miscarriage, others indicate potential risks. It is important to approach this topic with caution and always seek medical advice before taking any supplements during pregnancy.
Chinese herbal medicines have been used for millennia in Asian societies and have gained popularity as an alternative to Western medicine. Several studies have investigated the effectiveness of Chinese herbal medicines in preventing miscarriage and promoting live births. Some research suggests that these herbal formulas, such as Shou Tai Pill and Yangxi Zaitai Decoction, can be beneficial in preventing miscarriage when combined with other approaches like psychotherapy and pharmaceuticals. However, it is important to note that the quality of evidence in these studies has been poor, and more rigorous investigations are needed to confirm the safety and efficacy of Chinese herbal medicines.
The use of complementary and alternative medicine (CAM), including herbal treatments, during pregnancy is a growing trend worldwide. Pregnant women use CAM at similar rates as non-pregnant women, and health professionals increasingly recommend it. However, the safety and side effects of herbal medicines during pregnancy are still debated. While some studies report successful pregnancies after threatened miscarriage with the use of CAM, including Chinese herbal medicine, acupuncture, and nutritional supplements, there is insufficient evidence to conclude whether these treatments are harmful to fetal development or can induce pregnancy loss.
In terms of weight loss supplements, there are concerns about their safety during pregnancy. Herbal supplements for weight loss have been linked to an increased risk of miscarriage. Additionally, rapid weight loss can negatively impact milk production, and it is generally advised to focus on diet and exercise instead of weight loss medications during pregnancy and breastfeeding. The U.S. Food and Drug Administration (FDA) has specifically warned against the use of vinpocetine, an ingredient in some supplements, as it can cause miscarriage and decreased fetal weight.
Overall, while some herbal supplements may offer potential benefits in preventing miscarriage, the current evidence is limited and inconclusive. It is crucial for pregnant women or those trying to conceive to consult with healthcare professionals before taking any supplements. More comprehensive studies are needed to establish the safety and effectiveness of herbal treatments during pregnancy.
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Diet pills and birth control
Weight loss medication is contraindicated during pregnancy and breastfeeding. For those trying to conceive, it is advised to stop taking weight loss medication and consult a doctor. Weight loss medication may also interfere with birth control pills, potentially reducing their effectiveness. Drugs such as Mounjaro and Wegovy, for example, can slow down the absorption of food, and therefore may do the same to birth control pills. Tirzepatide, the medication marketed as Mounjaro, includes a warning that it may render birth control pills less effective. Vomiting and diarrhoea, which are common side effects of these types of drugs, can also reduce the effectiveness of birth control medication.
If you are taking weight loss medication and are concerned about its impact on your birth control, consider using a barrier method of contraception, such as a condom, in addition to your current method. Alternatively, you can switch to a non-oral contraceptive method. It is important to speak with a clinician to determine the best option for you.
While weight loss drugs can increase fertility, it is important to note that rapid weight loss can negatively impact milk production. Therefore, it is recommended to focus on diet and exercise to achieve a healthy weight before and during pregnancy.
If you are struggling with fertility and believe your weight may be a factor, speak to your doctor about weight loss options. They can guide you on how to achieve a healthy weight and ensure you have the right contraception if needed.
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Pregnancy and fertility
Weight loss medications are a concern for women who are pregnant or trying to conceive. All weight loss medications are contraindicated during pregnancy and breastfeeding, and clinicians advise focusing on lifestyle measures such as nutrition therapy, physical activity, and behaviour modification.
Some common weight loss medications include phentermine, sibutramine, orlistat, bupropion, and amphetamines. Each of these medications has its own safety profile during pregnancy, so it is important to research them before deciding to take them while pregnant. For example, phentermine has been linked to potential risks such as low birth weight, premature birth, and fetal stroke. Bupropion is also not recommended for pregnant women as it could increase the risk of miscarriage or birth defects. Orlistat may reduce the absorption of certain vitamins and minerals, which could lead to deficiencies in pregnant women.
Some medications designed to help diabetics control their blood sugar are also good for weight loss. These are known as GLP-1 receptor agonists, and they decrease appetite, resulting in patients eating less food and shedding pounds quickly. However, doctors suspect that these medications may also make birth control pills less effective, which could lead to unplanned pregnancies. Tirzepatide, for example, includes a warning that it may render birth control pills less effective.
Animal studies have suggested that weight loss medications might harm a fetus, and experts are concerned about the potential risks of taking these drugs before or during pregnancy. Doctors typically recommend that women stop taking these medications at least two months before trying to conceive.
Excess weight may increase the risk of miscarriage and pregnancy complications, but weight loss drugs are not recommended as a solution during pregnancy. Instead, doctors advise focusing on diet and exercise to manage weight during pregnancy. Eating whole foods is the best way to ensure that both mother and baby receive the necessary nutrition during this time. A healthy diet includes a variety of fruits, vegetables, whole grains, lean proteins, and healthy fats, while limiting processed foods and sugar-sweetened beverages. Staying physically active can also help burn calories and increase energy levels, but it is important to consult a doctor before starting an intense exercise regimen during pregnancy or breastfeeding.
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Weight loss medication alternatives
Weight loss medication should be avoided during pregnancy and breastfeeding, and clinicians recommend focusing on lifestyle measures such as nutrition therapy, physical activity, and behaviour modification.
If you are struggling with fertility and believe your weight is part of the cause, talk to your doctor about weight-loss options. However, you should not try to conceive while on these medications. Several medications designed to help diabetics control their blood sugar are also good for weight loss. They are known as GLP-1 receptor agonists and include brands such as Wegovy and Ozempic. They decrease appetite, resulting in patients eating less food and shedding pounds quickly. However, these medications may render birth control pills less effective, so patients in this situation should adopt a non-hormonal form of birth control.
The only over-the-counter medicine for weight loss currently approved by the FDA is Alli (orlistat). Other over-the-counter products are considered supplements and are not regulated by the FDA. Prescription medications, on the other hand, allow healthcare professionals to monitor progress and side effects and make adjustments as needed. Phentermine, for example, is available at a low cost and has been marketed as Lomaira and Adipex-P. However, it has been associated with fetal stroke.
If you are trying to lose weight, a healthy eating plan and regular physical activity may help you achieve your goals and keep the weight off in the long term. If these lifestyle changes are not enough, your healthcare provider may prescribe medications as part of a weight-control program.
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Frequently asked questions
No, all weight loss medications are contraindicated during pregnancy and breastfeeding. Women who are trying to conceive are also advised to stop taking weight loss medications.
Eating whole foods is the best way to ensure that you and your baby get the nutrition you need. Include a variety of fruits, vegetables, whole grains, lean proteins, and healthy fats in your diet. It is also important to limit processed foods and sugar-sweetened beverages.
Yes, diet pills can potentially increase the risk of miscarriage or cause birth defects, depending on the type and strength of the medication. Common weight loss medications like phentermine, sibutramine, orlistat, bupropion, and amphetamines have been linked to miscarriage.
No, weight loss medications are contraindicated during breastfeeding. Rapid weight loss can negatively impact milk production.
It is not recommended to take diet pills while trying to conceive as they may make birth control pills less effective. However, some doctors advise losing weight before pregnancy as excess weight can make it harder to get pregnant and increase the risk of miscarriage.
