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Medication · Medication

Oral Contraceptives

Estrogen/progestin (or progestin-only) pills for contraception and cycle control.

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A medication reference built from the interaction graph. It is not prescribing information — the label and your prescriber are.

What is uncertain

Read off the same rows as above. Nothing here is added that the entry does not itself record.

  • Caution with St. John's Wort: Lowers contraceptive levels — real failure risk.
  • Caution with Vitex (Chasteberry): Hormonal/dopaminergic activity — coordinate with contraception.

Interactions

Documented pairings with supplements and medicines. A medicine on this list is a conversation for whoever prescribes it.

The evidence in words

What it is

Estrogen/progestin (or progestin-only) pills for contraception and cycle control.

How it works

Their effectiveness depends on steady hormone levels; enzyme-inducing supplements accelerate hormone breakdown.

What it's used for

Contraception, cycle regulation, acne, PMS.

Supplement & drug interactions

Oral Contraceptives has 3 documented interactions mapped below and in the interactions graph. The critical interaction: St John's Wort induces enzymes that lower contraceptive hormone levels — real breakthrough-bleeding and pregnancy risk. The pill also modestly lowers some B vitamins and may raise the need for a few nutrients.

The rule

This is a medication reference for spotting interactions, not dosing advice. Every change to a supplement stack around a prescription belongs with the person who prescribes it.

Related reading

Entries that share this one's tags or conditions.

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Sources

This entry lists no references of its own.

Last revised . A grade is this entry's reading of the evidence, not medical advice.