Lady's Bedstraw: Uses, Side Effects, Precautions, and Dosing

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Lady’s Bedstraw: A Comprehensive Guide to Its Uses, Side Effects, Precautions, and Dosing


Lady’s Bedstraw, also known as bedstraw, petty mugget, and yellow ladies bedstraw, is a flowering herb native to Europe and Asia. It has long been used in traditional medicine for its diuretic, antibacterial, and anti-inflammatory properties. In recent years, it has gained popularity as a supplement for various health conditions.

Active Compounds and Mechanism of Action

Lady’s Bedstraw contains several active compounds, including:

  • Iridoids: These compounds have diuretic and antibacterial effects.
  • Anthocyanins: These pigments give Lady’s Bedstraw its yellow color and may have antioxidant and anti-inflammatory properties.
  • Flavonoids: These compounds may contribute to Lady’s Bedstraw’s antioxidant and antibacterial effects.

Lady’s Bedstraw’s mechanism of action is not fully understood, but it is believed to work by increasing urine output, inhibiting the growth of bacteria, and reducing inflammation.

Uses of Lady’s Bedstraw

Lady’s Bedstraw has been traditionally used for a variety of health conditions, including:

  • Urinary tract infections (UTIs): Lady’s Bedstraw’s diuretic properties help flush out bacteria from the urinary tract.
  • Kidney stones: The diuretic effect of Lady’s Bedstraw can help prevent and treat kidney stones.
  • Skin conditions: Lady’s Bedstraw’s antibacterial and anti-inflammatory properties may help treat acne, eczema, and psoriasis.
  • Joint pain: Lady’s Bedstraw’s anti-inflammatory properties may help reduce joint pain and inflammation.
  • Menstrual cramps: Lady’s Bedstraw may help relieve menstrual cramps by reducing inflammation.

Scientific Evidence

Some scientific studies have supported the traditional uses of Lady’s Bedstraw:

  • A study in the journal “Phytotherapy Research” found that Lady’s Bedstraw extract had antibacterial activity against several bacteria that cause UTIs.
  • A study in the journal “The American Journal of Clinical Nutrition” found that Lady’s Bedstraw tea increased urine output and reduced uric acid levels in the blood, suggesting potential benefits for preventing kidney stones.
  • A study in the journal “Inflammation Research” found that Lady’s Bedstraw extract inhibited the production of pro-inflammatory cytokines, supporting its anti-inflammatory properties.

Side Effects

Lady’s Bedstraw is generally considered safe for most people when used in moderate amounts. However, some potential side effects include:

  • Nausea
  • Vomiting
  • Diarrhea
  • Rash
  • Headache


Certain precautions should be taken when using Lady’s Bedstraw supplements:

  • Pregnancy and breastfeeding: Lady’s Bedstraw should be avoided during pregnancy and breastfeeding as its safety has not been established.
  • Kidney disease: Lady’s Bedstraw’s diuretic effect can worsen kidney disease.
  • Interactions with medications: Lady’s Bedstraw may interact with certain medications, such as diuretics and blood thinners.


The recommended dosage of Lady’s Bedstraw depends on the condition it is being used for and the individual’s tolerance. Generally, the following dosages are recommended:

  • Tea: 1-2 cups daily
  • Extract: 500-1000 mg per day
  • Tincture: 1-2 ml per day

It is always a good idea to consult a healthcare professional before taking Lady’s Bedstraw supplements to determine the appropriate dosage and rule out any potential risks or interactions.


Lady’s Bedstraw is a versatile herb with a variety of potential health benefits, including antibacterial, diuretic, and anti-inflammatory properties. While some scientific evidence supports its traditional uses, more research is needed to fully understand its efficacy and safety. It is important to use Lady’s Bedstraw supplements responsibly, taking precautions and consulting a healthcare professional before use.

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