📋 Product Overview Table

🌐 Specification	🧾 Details
💊 Product Name	Duvadilan Retards 40 mg SR Capsules
🧬 Active Ingredient	Isoxsuprine Hydrochloride (Sustained Release)
🏭 Manufacturer	Abbott India Pvt. Ltd.
💡 Indication	Prolonged uterine relaxation in preterm labor risk
🇺🇸 US Brand	Vasodilan SR
📦 Packaging	10 sustained‑release capsules per strip
🌍 Country of Origin	India
⏱️ Delivery Time	6 to 15 business days

🧬 Introduction – What is Duvadilan Retards 40 mg?

Duvadilan Retards 40 mg is an extended‑release formulation of isoxsuprine HCl, a tocolytic that relaxes the uterus to help prevent preterm labor. Developed by Abbott India, this SR capsule ensures a steadier therapeutic level over an extended period, reducing dosing frequency and improving compliance for pregnant women at risk of early contractions.

🎥 Educational Video Overview

📺 “Extended‑Release Tocolytics: Benefits of SR Isoxsuprine”
🎬 Video Placeholder – Covers pharmacokinetics, dosing, and monitoring.

💬 Reviewed by: Dr. Rekha Sharma, MD (Maternal‑Fetal Medicine Specialist)

🔬 Mechanism of Action

🎯 Action	💡 Physiological Effect
β₂‑adrenergic agonism	Sustained inhibition of uterine smooth muscle
Vasodilation	Improves uteroplacental perfusion
Slow-release delivery	Maintains stable plasma levels throughout dosing interval

💊 Indications & Dosage

Preterm labor prevention: 40 mg SR capsule orally once or twice daily as directed
Uterine relaxation in obstetrics: As per specialist prescription

Use under OB‑GYN supervision. Monitor maternal heart rate and blood pressure regularly.

⚠️ Side Effects & Precautions

🔸 Common Side Effects	🔸 Serious Concerns
Headache, flushing	Tachycardia, hypotension
Dizziness, nausea	Pulmonary edema (rare)
Palpitations	Cardiac arrhythmias in susceptible patients

⚠️ Contraindicated in hypertensive, cardiac, or hyperthyroid pregnant individuals.

🧃 Storage & Handling

Store at 20–25 °C
Keep in original SR capsule strip
Shield from light and moisture
Keep away from children

🌍 Global Availability & Import Regulations

🌎 Region	🚚 Import Notes	📜 Prescription Required
🇺🇸 USA	Not FDA‑approved; import under personal use policy	✅ Yes
🇬🇧 UK	Allowed with MHRA exemption for therapeutic need	✅ Yes
🇦🇺 Australia	TGA permits import via prescription	✅ Yes

Estimated delivery: 6–15 working days, depending on courier and customs.

🔗 Indian Alternatives

💊 Product Name	🏭 Manufacturer	📝 Description
Isoxsuprine 10 mg	Healing Pharma	Generic immediate-release isoxsuprine for uterine relaxation
Tocolip 10 mg	Cipla Ltd	Standard tablet formulation used in tocolysis
Dytarel 10 mg	Sun Pharma	Widely used isoxsuprine immediate-release for preterm labor prevention
Isoxsuprine SR 20 mg	Indian Generic Brand	Lower-dose sustained-release option for steady uterine relaxation
Vasodilan 10 mg	Multiple Manufacturers	Branded immediate-release version of isoxsuprine, same active ingredient

📚 References & External Resources

🩺 Expert Commentary – Dr. Rekha Sharma, MD

“Extended-release isoxsuprine capsules like Duvadilan Retards offer longer-lasting uterine relaxation with fewer doses—ideal for managing tocolysis in high‑risk pregnancies.”

⚠️ Disclaimer

This article is for educational purposes only. Duvadilan Retards 40 mg (Isoxsuprine SR) should be used under strict medical supervision. Consult your doctor before use.