Mestranol, Norethindrone

Ortho-Novum 1/50 Tablets (28 Day)

.05 MG / TAB + 1 MG / TAB TabletCanadaCancelledAuthorised 31 Dec 1975

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In other countries

The same active substances on other registers, the same brand first.

Two medicines in one question?

Name two or more medicines and Osler runs an interaction check. A severe interaction is stated at the very top of the answer.

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Mestranol, Norethindrone

Ortho-Novum 1/50 Tablets (28 Day)

.05 MG / TAB + 1 MG / TAB TabletCanadaCancelledAuthorised 31 Dec 1975

Open in the registerAsk Osler about it

This page is kept for reference and is not offered to search engines.

In other countries

The same active substances on other registers, the same brand first.

Two medicines in one question?

Name two or more medicines and Osler runs an interaction check. A severe interaction is stated at the very top of the answer.

Discover Osler

AnyNew Zealand · Tab 1 mg with mestranol 50 mcg

Documents

The official texts, at the regulator.

Register entryHealth Canada

Sources and licences

Compiled by Prognia from the public register below; the register’s text is the official one.

Health Canada, Canada

Health Canada, Drug Product Database, drugproduct API, entire response observed 2026-10-10T15:12:07.336870+00:00; native facts projected by Prognia.

Licence: Open Government Licence Canada · Added 13 Oct 2026

Report an error or request removalCorrections from the holder or the register are welcome.

Prognia shows this product information for reference and learning. It is not treatment advice and can lag behind the official text. Always check the current product information and local protocols before prescribing.

At a glance

Active substances: Mestranol, Norethindrone
Strength: .05 MG / TAB + 1 MG / TAB
Dosage form: Tablet
Route: Oral
Register: Canada (Health Canada)
Status: Cancelled
Status in the register: Cancelled Post Market
Authorised: 31 Dec 1975
Registration: DIN 00340758
Marketing authorisation holder: Janssen INC
ATC code: G03AA05
Group: Genito-urinary system and sex hormones
Supply: PRESCRIPTION

Cancelled

Norinyl 1/50 -(28-Day Regimen)Mestranol + Norethindrone · 0.05 MG + 1 MG · TabletCanadaCancelled

Norinyl 1/50 28 TabMestranol + Norethindrone · .05 MG / TAB + 1 MG / TAB · TabletCanadaCancelled

Ortho-Novum 1/50 Tablets (21 Day)Mestranol + Norethindrone · .05 MG + 1 MG · TabletCanadaCancelled