Reviewed on 9/13/2021

What Is Parsley and How Does It Work?

Parsley is used to treating kidney and bladder stones, urinary tract infections (UTIs), gastrointestinal disorders, constipation, jaundice, flatulence, indigestion, colic, diabetes, cough, asthma, edema, osteoarthritis, anemia, hypertension, prostate conditions, and spleen conditions.

There are insufficient reliable studies to determine the effectiveness of parsley for these indications. More studies are needed.

Parsley is available under the following different brand names: Petroselinum crispum.

What Are the Dosages of Parsley?

Dosages of Parsley:

  • 6 g/day orally

Dosage Considerations – Should be Given as Follows:

  • An essential oil should not be used because of toxicity
  • The potency of commercial preparations may vary; follow manufacturer's directions


  • When using as a diuretic, drink plenty of fluid


Urinary Incontinence in Women: Types, Causes, and Treatments for Bladder Control See Slideshow

What Are Side Effects Associated with Using Parsley?

  • There are no side effects of parsley at reported doses.

This document does not contain all possible side effects and others may occur. Check with your physician for additional information about side effects.

What Other Drugs Interact with Parsley?

If your doctor has directed you to use this medication, your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor, health care provider, or pharmacist first.

  • Parsley has no known severe, serious, or moderate interactions with other drugs.
  • Mild interactions of ivermectin include:
    • warfarin

This information does not contain all possible interactions or adverse effects. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share this information with your doctor and pharmacist. Check with your health care professional or doctor for additional medical advice, or if you have health questions, concerns, or for more information about this medicine.

What Are Warnings and Precautions for Parsley?


  • This medication contains parsley. Do not take Petroselinum crispum if you are allergic to parsley or any ingredients contained in this drug.


Effects of Drug Abuse

  • No information available

Short-Term Effects

  • See "What Are Side Effects Associated with Using Parsley?"

Long-Term Effects

  • See "What Are Side Effects Associated with Using Parsley?"


  • Refined oil is too toxic for medicinal use
  • High doses can cause severe intestinal, uterine, and bladder contractions-contact primary care provider if overdose is suspected

Pregnancy and Lactation

  • Use of parsley during pregnancy is contraindicated (in medicinal doses)
  • There is no information available about the use of parsley in medicinal doses if breastfeeding. Consult your doctor
Medscape. Parsley.

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