
A B Phylline Caps
SUN PHARMA - capsule - 15 S
Standard delivery
Drug | Tablet
Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated July 2026
Medicines with the same active ingredient and strength as Susten SR 300 Tablet.
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Susten SR 300 Tablet
tablet - 10 Tablet
₹652
₹65.16 per tablet
REGENIX DRUGS LIMITED · tablet - 10 S · Rx
₹548
₹54.84 per tablet
HBC LIFESCEINCE PVT LTD · tablet - 10 S · Rx
₹549
₹54.94 per tablet
Progesterone (Natural Micronized) (300mg)
Luteal phase support in infertility/ART (IVF/ICSI), progesterone supplementation in progesterone deficiency, support of early pregnancy in threatened/recurrent miscarriage due to luteal insufficiency, secondary amenorrhea (as prescribed)
Progesterone is a natural female hormone that prepares and maintains the uterine lining (endometrium) for implantation and pregnancy. It stabilizes the endometrium, reduces uterine contractions, and supports the luteal phase when endogenous progesterone is inadequate.
Oral sustained-release tablet; take exactly as prescribed, preferably at the same time each day. Usually taken after food and often at bedtime (may cause drowsiness/dizziness). Swallow whole; do not crush or chew. Duration and dose depend on indication (luteal support/pregnancy support/amenorrhea).
Common side effects of Susten SR 300 Tablet may include:

SUN PHARMA - capsule - 15 S
Standard delivery
SUN PHARMA - tablet - 10 S
Standard delivery
SUN PHARMA - tablet - 200 mg - 10 S
Standard delivery
SUN PHARMA - syrup - 100 ml
Standard delivery
SUN PHARMA - tablet - 6 Tablet
Standard delivery

SUN PHARMA - 100 mg - 15 S
Standard delivery

SUN PHARMA - tablet - 10 S
Standard delivery

SUN PHARMA - tablet - 10 S
Standard delivery
A substitute contains the same active ingredient (salt), in the same strength, as Susten SR 300 Tablet. The medicine inside is the same — the brand name, manufacturer and price are what differ.
All medicines sold in India, branded or generic, must meet the quality standards set by the national drug regulator (CDSCO). A lower price does not mean lower quality.
Please confirm with your doctor or pharmacist before switching brands — they will check that the strength and form match your prescription.
May cause sleepiness/dizziness—avoid driving or alcohol if affected. Use with caution in liver disease, history of depression, epilepsy/migraine, diabetes, asthma, kidney/heart disease or fluid retention. Seek urgent care for signs of blood clot (leg pain/swelling, chest pain, breathlessness), severe headache/vision changes, jaundice, or heavy vaginal bleeding. Not for use in known/suspected breast or genital cancers, unexplained vaginal bleeding, active thromboembolic disorders, or severe liver disease unless specialist directs.