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Molecule Description

It is a synthetic progestogen, a steroidal hormonal medicine.

Uses of Allylestrenol

  • To prevent repeated pregnancy loss.
  • Control Bleeding, for the period of first three months of pregnancy.
  • Prevent premature delivery.

Contraindications of Allylestrenol

When should one not use Allylestrenol

  • Do not take this medicine if:
  • You have incomplete abortion
  • You have an allergy to this medicine

Side effects of Allylestrenol

Common side effects of this drug are:

  • Change in weight
  • Unwanted hair growth
  • Menstrual disturbances
  • Swelling over body
  • Fever
  • Headache
  • Fatigue

Precautions and Warnings of Allylestrenol


Can I take Allylestrenol during pregnancy?
Allylestrenol is used to prevent miscarriage as well as for maintaining pregnancy. It is used to avoid repeated loss of pregnancy.

Breast Feeding

Can I take Allylestrenol while breastfeeding?
This medicine is used only in certain pregnancy-related complications, hence not given in breastfeeding.


Can I drive if I have consumed Allylestrenol?
No adequate information is available.


Can I consume alcohol with Allylestrenol?
Interaction with alcohol is unknown.

Other General Warnings

Talk to your doctor if
You have high-risk factors such as under-active thyroid, kidney disease, heart disease, or liver disease.

Mode of Action of Allylestrenol

How Does It Work?

It relaxes uterine muscles, thereby preventing premature labour.

Interactions of Allylestrenol

Interactions with other medicines

  • Carbamazepine, Griseofulvin, Phenobarbital.
  • Intake of Phenytoin and Rifampicin decrease the blood level of allylestrenol. Thereby, it can reduce the adequate capability of this medicine.
  • Ketoconazole increases the effectivity of allylestrenol.

Interactions with food items

Interactions with food is yet to report. You can take Allylestrenol with or without food, but it is better to take medicine at a fixed time.

Dosage of Allylestrenol


There are not many reports to specify the symptoms of Allylestrenol overdose. Seek emergency medical care immediately if you suspect an overdose.

Missed a Dose

If you missed any dose, take it as soon as you remember. However, if it is time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to compensate for a missed dose.
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Frequently Asked Questions (FAQs)


Q: What should I discuss with my healthcare provider before taking Allylestrenol?

A: Give a detailed account of your medical and surgical history. Also, mention to your doctor all the prescription and non-prescription medicines, herbal preparations, and nutritional supplements that you may take before starting this medication.

Q: Are there any precautions to follow when taking this medicine?

A: Do not stop taking medicine suddenly without your doctor’s advice as it may cause heavy bleeding. Immediately discontinue medicine if there is a loss of vision, severe headache, migraine attack, or seizures.

Q: I am pregnant, and I am experiencing bleeding, can I take this medicine?

A: Allylestrenol is a prescribed medicine and should be taken only if advised by the doctor.
Last Updated on: 05 Oct 2020 | 10:47 PM (IST)

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