Allylestrenol
About Allylestrenol
Allylestrenol is a prescription hormonal medicine used to support pregnancy in certain situations, such as threatened miscarriage, recurrent pregnancy loss, and prevention of premature labour. It has progesterone-like activity and may help maintain the uterine environment needed for pregnancy. However, the clinical evidence supporting its use for preventing miscarriage and preterm labour is still evolving, and recommendations may vary between guidelines and countries. It should only be used under the supervision of a doctor who can assess whether it is appropriate for your individual situation.
To achieve the best results, you must take this medication consistently at the same times every day as directed by your healthcare provider. You can take it with or without food, though taking it with a light meal can help prevent mild stomach upset. Alongside your medication, prioritising physical rest and avoiding heavy lifting or strenuous tasks can significantly improve your treatment outcomes.
While taking Allylestrenol, you may experience mild and temporary side effects such as nausea, headaches, or breast tenderness. These symptoms are common and usually resolve on their own. However, you must consult your doctor immediately if you experience severe side effects, such as sudden chest pain, severe leg swelling, or sudden vision changes.
Talk to your doctor before starting Allylestrenol if you have any pre-existing health conditions, especially liver issues, undiagnosed vaginal bleeding, or a history of blood circulation disorders. Do not take this if you have severe liver damage, active blood clots, or if you have experienced a missed miscarriage that has not been fully resolved by a medical professional.
This medicine may interact with other treatments, including anti-seizure medications and certain antibiotics, which can make your dose less effective. Avoid drinking alcohol and smoking while taking this medicine, as they can increase your risk of blood vessel complications. If you are breastfeeding or are an elderly individual, consult your doctor or pharmacist, though this medication is specifically formulated for use during pregnancy.
Uses of Allylestrenol
Medicinal Benefits
Allylestrenol provides vital support during vulnerable stages of pregnancy, helping expectant mothers feel more secure and physically comfortable. By calming uterine activity, it helps ease the physical tension and anxiety associated with a high-risk pregnancy.
- Reduces risk of early delivery: By preventing premature contractions, it helps ensure the baby has maximum time to develop fully in the womb.
- Protects early-stage pregnancy: It strengthens the lining of the womb, creating a safer, more stable environment for the developing embryo.
- Relieves uterine cramping: It helps quieten uterine muscle activity, reducing painful or alarming pelvic spasms.
Directions for Use
- Allylestrenol can be taken with or without food as advised by your doctor.
- Follow your doctor’s instructions on the dosage and timing of this medication.
- Swallow Allylestrenol as a whole with a glass of water.
- Do not crush, break, or chew it.
Storage
Side Effects of Allylestrenol
Like all medications, Allylestrenol can cause side effects, although not everyone gets them. Most side effects are mild and temporary.
Common Side Effects (Usually mild):
- Nausea or mild stomach upset
- Headache or mild dizziness
- Mild drowsiness or tiredness
- Breast tenderness or swelling
- Bloating or mild fluid retention
Serious Side Effects (Call a doctor right away):
- Signs of an allergic reaction, such as skin rash, itching, hives, or swelling of the face, lips, and throat
- Sudden, severe pain or swelling in one leg (possible sign of a blood clot)
- Sudden shortness of breath or sharp chest pain
- Severe, persistent headache or sudden changes in your vision
- Yellowing of your skin or eyes (signs of liver damage)
Medicines Containing this Salt
View AllDrug Warnings
- Monitor for bleeding: Keep a close eye on any vaginal bleeding or spotting. Report any new or increased bleeding to your doctor immediately.
- Watch for signs of blood clots: Be alert to sudden calf pain, warmth, swelling, or redness, as hormonal treatments can slightly increase the risk of blood clots.
- Inspect your tablets: Before taking your dose, inspect the tablet to ensure it is intact and has not changed colour or crumbled. Do not use damaged tablets.
- Inform other doctors: Always tell any healthcare provider you visit, including dentists or surgeons, that you are taking Allylestrenol.
- Do not share this medicine: This medication is specifically prescribed for your unique pregnancy needs. Never share it with anyone else, even if they have similar symptoms.
Drug Interactions
Inform your doctor about all the medicines you are taking before taking this, as they may interact with Allylestrenol and affect your treatment.
- Anti-Seizure Medicines (such as carbamazepine, phenytoin, and phenobarbital) and Rifampicin (a medicine commonly used to treat tuberculosis): These medicines can increase the breakdown of Allylestrenol in the body, which may reduce its effectiveness. Inform your doctor if you are taking rifampicin for tuberculosis or any other infection, as your treatment plan may need closer monitoring or adjustment.
Drug-Drug Interactions Checker List:
Safety Advice
Alcohol
cautionThere is not enough scientific data available for Allylestrenol interaction with alcohol, hence it is best to consult a doctor.
Pregnancy
safe if prescribedSafe if prescribed.
Breast Feeding
cautionPlease consult your doctor before using Allylestrenol during breastfeeding. Your doctor will weigh the benefits and any potential risks before prescribing it to you. Please consult your doctor.
Driving
cautionIt is advised to drive with caution after taking Allylestrenol as it may interfere with driving capabilities. It can make you feel drowsy.
Liver
cautionAllylestrenol should be taken with caution, especially if you have a history of liver diseases/conditions. The dose may have to be adjusted by your doctor.
Kidney
cautionAllylestrenol should be taken with caution, especially if you have a history of kidney diseases/conditions. The dose may have to be adjusted by your doctor.
Children
unsafeAllylestrenol is not indicated for use in children. Safety and effectiveness in pediatric patients less than 16 years of age have not been established.
Habit Forming
Diet & Lifestyle Advise
- Prioritise physical rest: If you are prescribed Allylestrenol for threatened miscarriage or premature labour, follow your doctor's advice regarding physical rest. Avoid lifting heavy objects, standing for long periods, or performing high-impact exercises.
- Stay well-hydrated: Drink plenty of water throughout the day. Staying hydrated helps maintain amniotic fluid levels and reduces the likelihood of mild uterine cramping.
- Eat a fibre-rich diet: Hormonal medications can sometimes slow down digestion. Eat fruits, vegetables, and whole grains to help prevent constipation, which can place unnecessary pressure on your pelvic area.
- Avoid stress: Practice gentle relaxation techniques, such as deep breathing or prenatal meditation, to help keep your stress levels low, which is beneficial for both you and your baby.
Special Advise
- Allylestrenol is not recommended for use in women less than 16 years of age.
- You should not take Allylestrenol if you have an incomplete abortion.
Patients Concern
Disease/Condition Glossary
A miscarriage is an unexpected loss of pregnancy before the 20th week of pregnancy. Recurrent miscarriage or habitual abortion is two or more repeated pregnancy losses within the first trimester. Miscarriages can happen for many reasons, including hormonal disbalance and diseases like thyroid, diabetes, etc. Symptoms include vaginal spotting, abdominal pain or cramping, fluid or tissue passing from the vagina, and vaginal bleeding.
Preterm labour is also called premature labour when your baby starts getting ready for birth too early in your pregnancy. It can start before 37 completed weeks of pregnancy. Premature labour can be caused by premature rupture of membranes, high blood pressure during pregnancy (pre-eclampsia) and poor diet. Symptoms of preterm labour include leaking fluid or bleeding from the vagina, feeling of pressure in the pelvis, and cramps that feel like menstrual cramps regularly. Few premature babies need special care and also have long-term mental and physical disabilities.
FAQs
Allylestrenol belongs to the category of a synthetic progesterone female hormone called progestin used to prevent premature labour.
Allylestrenol contains Allylestrenol is a progestin (female hormone) that helps in maintaining pregnancy by promoting the attachment of the embryo to lining of the womb and improving blood flow to the placenta. It also relaxes the uterus muscles thereby preventing premature labor and repeated miscarriage.
Yes, Allylestrenol is used to prevent the habitual miscarriage and regular abortion. Your doctor will decide whether you should continue or stop taking Allylestrenol. Do not take medication of your own or self medicate.
No, Allylestrenol is not a contraceptive. It should not be used as an effective form of birth control to prevent pregnancy.
Yes, Allylestrenol may cause weight gain. It can be due to water retention. If you feel that you are gaining a lot of weight while taking Allylestrenol, please consult your doctor.
You should stop using Allylestrenol and tell a doctor before using Allylestrenol if you have uncontrolled high blood pressure (hypertension), unusual vaginal bleeding, liver disease, liver cancer, jaundice during pregnancy, circulation problems or bleeding problems, stroke, blood clot problems, breast cancer, uterus/cervix/vaginal cancer.
The common side effects of Allylestrenol include changes in weight, unwanted hair growth, menstrual disturbances, swelling over the body, fever, headache, and fatigue. Most of the side effects of Allylestrenol do not require medical attention and gradually resolve over time. However, if the side effects persist, please consult your doctor.
Feeling depressed after taking Allylestrenol is not a common side effect, but it may occur in some individuals due to hormonal changes. Allylestrenol is a synthetic hormone that may cause fluctuations in certain hormone levels, leading to mood changes such as irritability, anxiety, and depression. If you continue to feel depressed, please consult your doctor.
Natural progesterone plays a key role in regulating the menstrual cycle (the monthly process in which a woman's body prepares for pregnancy), preparing the uterus for pregnancy, supporting early pregnancy, preventing lactation during pregnancy, and maintaining a healthy hormonal balance. It also helps reduce the risk of uterine cancer, promotes bone health, and supports mood stability.
Yes, Allylestrenol is commonly prescribed during the first trimester to support early pregnancy, especially if you have a history of miscarriages or are experiencing early spotting. However, you should only take it under the direct supervision of your doctor.
Some women may experience mild drowsiness, tiredness, or dizziness while taking Allylestrenol. If you feel sleepy or less alert, avoid driving or operating machinery until you know how this medicine affects you. Talk to your doctor if these symptoms become severe or persistent.
If you notice any vaginal spotting or bleeding while taking Allylestrenol, contact your doctor right away. While the medicine is meant to help prevent miscarriage, any bleeding during pregnancy requires a professional medical evaluation.
No, you should never stop taking Allylestrenol suddenly without consulting your doctor. Stopping this medication prematurely can cause hormonal imbalances and increase the risk of pregnancy complications.
Allylestrenol is specifically used to support and maintain pregnancy. If you are breastfeeding and require hormonal treatment, talk to your doctor or pharmacist to discuss safer, more appropriate alternatives.
Yes, you can consume moderate amounts of caffeine while taking Allylestrenol. However, during pregnancy, it is generally recommended to limit your daily caffeine intake. Talk to your doctor for personalised dietary advice.
If you experience mild nausea, try taking your dose with a light meal or snack. If the nausea is severe, causes vomiting, or prevents you from keeping your medication down, talk to your doctor or pharmacist right away.
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