M4 Pill — GREEN ROUND, 5mm — Estradiol
| Imprint | M4 |
|---|---|
| Colour | GREEN |
| Shape | ROUND |
| Size | 5 |
| Strength | ETHINYL ESTRADIOL 0.01 mg |
| Dosage form | Tablet |
| Manufacturer | NorthStar Rx LLC |
| NDC | 16714-404 |
| Schedule | — |
| Availability | Prescription only |
| Ingredients | ETHINYL ESTRADIOL[ETHINYL ESTRADIOL] |
What does this imprint mean?
The imprint "M4" is a code stamped or printed on the tablet or capsule by the manufacturer, used to identify the drug, its strength and the maker.
Active ingredient
Estradiol
Uses and warnings
Drug classThe principal endogenous human estrogen, which "acts through binding to nuclear receptors in estrogen-responsive tissues," modulating the pituitary secretion of gonadotropins (LH/FSH) through negative feedback and exerti...
Read the full drug profile →How to identify this pill
- • Check the imprint matches exactly: "M4".
- • Confirm the colour (GREEN) and shape (ROUND).
- • Compare the size (5) against a ruler if possible.
- • When in doubt, confirm with a pharmacist before taking any medication.
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Official references
Source: FDA Structured Product Label via NLM Pillbox archive (retired 2021); source file 4a4d907b-e6c5-4563-8ec3-46f3c38812b5.xml