Fireweed is an herb. The parts of the plant that grow above ground are used to make medicine.

People use fireweed for migraine, the common cold, stomach ulcers, enlarged prostate (benign prostatic hyperplasia or BPH), wound healing, and many other conditions, but there is no good scientific evidence to support any of these uses.
When taken by mouth: There isn't enough reliable information to know if fireweed is safe or what the side effects might be.

When applied to the skin: There isn't enough reliable information to know if fireweed is safe or what the side effects might be.

Special Precautions & Warnings:

Pregnancy and breast-feeding: There isn't enough reliable information to know if fireweed is safe to use when pregnant or breast-feeding. Stay on the safe side and avoid use.


NatMed Pro rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, Ineffective, and Insufficient Evidence to Rate.
Likely effective Effectiveness definitions
Possibly effective Effectiveness definitions
Likely ineffective Effectiveness definitions
Possibly ineffective Effectiveness definitions
Insufficient evidence Effectiveness definitions
  • A mental state in which a person is confused and unable to think clearly.
  • A type of inflammatory bowel disease (ulcerative colitis).
  • Bed sores (pressure ulcers).
  • Burns.
  • Cancer.
  • Common Cold.
  • Eczema (atopic dermatitis).
  • Enlarged prostate (benign prostatic hyperplasia or BPH).
  • Insomnia.
  • Leg sores caused by weak blood circulation (venous leg ulcer).
  • Low levels of red blood cells in people with a long-term illness (anemia of chronic disease).
  • Migraine.
  • Painful urination due to swelling (inflammation) of the urethra (urethral syndrome).
  • Sore throat (pharyngitis).
  • Stomach ulcers.
  • Swelling (inflammation) of the stomach (gastritis).
  • Swimmer's ear (otitis externa).
  • Tumors without cysts or liquid (solid tumors).
  • Wound healing.
  • Other conditions.
More evidence is needed to rate the effectiveness of fireweed for these uses.

Dosing & administration

The appropriate dose of fireweed depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for fireweed. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.

Interactions with pharmaceuticals

It is not known if Fireweed interacts with any medicines. Before taking Fireweed, talk with your healthcare professional if you take any medications.

Interactions with herbs & supplements

There are no known interactions with herbs and supplements.

Interactions with foods

There are no known interactions with foods.


Fireweed might contain substances that reduce swelling (inflammation). has licensed monographs from TRC Healthcare.
This monograph was last reviewed on 12/04/2024 10:00:00 and last updated on 05/06/2018 20:47:12. Monographs are reviewed and/or updated multiple times per month and at least once per year.
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