1 oz. (28 grams) Cramp Bark Powder (Viburnum opulus)Also known as Also known as- Viburnum opulus, Guelder rose, Black Haw, Cranberry Tree, Dog Rowan Tree, Viburnum, May Elder, King’s Crown, and May Rose.Introduction Cramp bark is a large deciduous shrub growing as much as 15 feet (5 m) tall and 15 feet wide. It is native to the moist lowland forests of England and Scotland and naturalized to moist forests of the northern United States and southern Canada. The bark is stripped before the leaves change color in the fall, or before the buds open in the spring. A member of the honeysuckle family, cramp bark bears large white flowers, up to 5 inches (12 cm) across that yield red berries in the fall. The berries are eaten like cranberries, although moderation is recommended. Historically, the berries, once dried, have been used for making ink.Constituents Coumarins, scopoletin, tannin.Parts Used Dried bark, harvested in the autumn before leaves change color, or in the spring before leaves open. The leaves and fruit are used in laxatives.Typical Preparations Teas or tinctures. In rare instances, used as a ground herb administered in capsules. Often combined with corydalis and/or valerian for pain.Summary Precautions Cramp bark is essentially nontoxic, although taking large quantities of the fruit or leaf can cause diarrhea. Some reports have shown that people with sensitivity to aspirin may also have a sensitivity to cramp bark, so caution should be exercised.This information has not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease.Save on shipping if all items are paid for in one Paypal transaction If you are looking for larger quantities, or other herbs not listed, please inquire with “Ask seller a question” If you have a problem with your purchase, please contact me first before leaving feedback, so we can reach resolution promptly and efficiently. I intend to please and am always honest and reasonable in my business transactions for over 10 years. Bid With Confidence! Read my feedback. I’m a very interactive seller and have high marks for cooperative selling. I guarantee this will be a positive EBay experience for you. The information in the listing is just a brief description found on the internet that describes the item, please do your own research before purchasing, or contact a health professional for futher information about this item. Ebay does not allow me to give any medical advice pertaining to any of the herbal tems 1 Ounce (oz) = 28 Grams(gm) = 28000 Milligrams(mg) Please Note: As I do my best to keep the pictures in the description current, The color, cut, and packaging may vary slightly as I do not purchase more than I can sell in a couple months, and these can be different from batch to batch. Be assured that you are receiving the item you purchased Shipping for each additional item is $0.25 if all items are paid for in one Paypal transaction. Shipping discounts should automatically be applied when you check out, If not, Please click “Request Total”. If you choose to pay for items individually, the shipping discount will not be applied. Please note: Feedback is left automatically, once it is received…. If you plan on purchasing multiple items, all you need to do is add them to your cart first, then click checkout when finished, then all items will have discounted shipping charges.if you do pay for the items individually, they will be shipped by individually, so if you want to save money on your order, add to cart first. If you plan on purchasing multiple items, all you need to do is add them to your cart first, then click checkout when finished, then all items will have discounted shipping charges.if you do pay for the items individually, they will be shipped by individually, so if you want to save money on your order, add to cart first.