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Contraceptive patch

transdermal patch applied to prevent pregnancy

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 12, 2026
Entity authorityQ1295013
Source-derived summary

A contraceptive patch, also known as "the patch", is a transdermal patch applied to the skin that releases synthetic oestrogen and progestogen hormones to prevent pregnancy. They have been shown to be as effective as the combined oral contraceptive pill with perfect use, and the patch may be more effective in typical use.

Xulane and Twirla are approved for use in the United States. Evra is approved for use in Canada and marketed by Janssen Inc., and it is approved for use in the United Kingdom and in Europe and marketed by Janssen-Cilag. The patches are packaged in boxes of three and are only available by prescription.

Medical uses

Because the patch works similarly to that of birth control pills, many of the benefits are the same. For example, the patch may make a woman's period lighter and more regular. It may also help to clear acne, decrease cramps, and reduce PMS symptoms. Additionally, the patch is associated with increased protection against iron deficiency anemia, ovarian cysts, pelvic inflammatory disease, and endometrial and ovarian cancer.

The patch is a simple and convenient form of birth control that requires weekly attention.

Editorial summary

Begin with the source’s own compact description: “Contraceptive patch” is transdermal patch applied to prevent pregnancy. The dossier treats that line as a proposition to test through Contraceptive, patch and transdermal, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current 190-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. For this dossier, Contraceptive, patch and transdermal is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “transdermal patch applied to prevent pregnancy” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 12, 2026. The linked authority identifier is Q1295013. None of the 0 selected statements returned an explicit reference.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Contraceptive patch”, its source revision and the description used here.
  2. Expand the search: follow Contraceptive patch primary sources, Contraceptive patch archive and Contraceptive research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

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Source & attribution

This entry incorporates text from Contraceptive patch” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.