Skip to content
WebMD: Better Information. Better Health.
Other search tools:Symptoms|Doctors|Videos

Anisindione Oral

Anticoagulants/Chloral Hydrate; Triclofos

This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment.

Medical warning:

Serious. These medicines may interact and cause very harmful effects. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.

How the interaction occurs:

When these two medicines are taken together, your body may not process your blood-thinning medicine properly.

What might happen:

You may experience an increased chance for bleeding including bleeding from your gums, nosebleeds, unusual bruising, or dark stools.

What you should do about this interaction:

Contact your healthcare professionals (e.g. doctor or pharmacist) about taking these two medicines together. They may already be aware of this interaction and may be monitoring you for it. If your doctor prescribes these medicines together, it may be necessary to check your bleeding times more often. The dose of your blood-thinner may need adjusting. Do not start, stop, or change the dosage of any medicine before checking with them first.

References:

1.Cucinell SA, Odessky L, Weiss M, Dayton PG. The effect of chloral hydrate on bishydroxycoumarin metabolism; a fatal outcome. JAMA 1966 Aug 1; 197(5):366-8.
2.MacDonald MG, Robinson DS, Sylwester D, Jaffe JJ. The effects of phenobarbital, chloral betaine, and glutethimide administration on warfarin plasma levels and hypoprothrombinemic responese in man. Clin Pharmacol Ther 1969 Jan-Feb;10(1):80-4.
3.Udall JA. Drug interference with warfarin therapy. Clin Med 1970 Aug; 77:20-5.
4.Sellers EM, Koch-Weser J. Potentiation of warfarin-induced hypoprothrombinemia by chloral hydrate. N Engl J Med 1970 Oct 15; 283(16):827-31.
5.Koch-Weser J, Sellers EM, Udall JA, Griner PF, Rickles FR. Chloral hydrate and warfarin therapy. Ann Intern Med 1971 Jul;75(1):141-2.
6.Griner PF, Raisz LG, Rickles FR, Wiesner PJ, Odoroff CL. Chloral hydrate and warfarin interaction: clinical significance. Ann Intern Med 1971 Apr; 74(4):540-3.
7.Breckenridge A, Orme ML, Thorgeirsson S, Davies DS, Brooks RV. Drug interactions with warfarin: studies with dichloralphenazone, chloral hydrate and phenazone (antipyrine). Clin Sci 1971 Apr;40(4):351-64.
8.Sellers EM, Koch-Weser J. Kinetics and clinical importance of displacement of warfarin from albumin by acidic drugs. Ann N Y Acad Sci 1971 Jul 6; 179:213-25.
9.Sellers EM, Lang M, Koch-Weser J, Colman RW. Enhancement of warfarin-induced hypoprothrombinemia by triclofos. Clin Pharmacol Ther 1972 Nov-Dec;13(6):911-5.
10.Orme M, Breckenridge A, Brooks RV. Interactions of benzodiazepines with warfarin. Br Med J 1972 Sep 9;3(827):611-4.
11.Anonymous. Chloral hydrate and oral anticoagulants. Lancet 1972 Mar 4; 1(7749):524.
12.Anonymous. Interaction between chloral hydrate and warfarin. A report from the Boston Collaborative Drug Surveillance Program, Boston Universtiy Medical Center. N Engl J Med 1972 Jan 13;286(2):53-5.
13.Beliles RP, Foster GV Jr. Interaction of bishydroxycoumarin with chloral hydrate and trichloroethyl phosphate. Toxicol Appl Pharmacol 1974 Feb; 27(2):225-9.
14.Udall JA. Warfarin-chloral hydrate interaction. Pharmacological activity and clinical significance. Ann Intern Med 1974 Sep;81(3):341-4.
15.Udall JA. Clinical implications of warfarin interactions with five sedatives. Am J Cardiol 1975 Jan;35(1):67-71.

Be the first to share your experience with this drug.

Review this Treatment

Find a Drug:

by name or medical condition or shape/color (Pill Identifier)

(for example: aspirin)

(for example: diabetes)

Report Problems to the Food and Drug Administration
 
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Health Solutions From Our Sponsors

FDA Protect Your Health

Explore our newly expanded FDA Center on WebMD for timely information on food safety, allergies, diabetes, vitamins & supplements, and more!

Ask the pharmacist

Questions about medications? Get expert answers by video or live chat about allergies, pregnancy, sleep, and more.
See the Ask the Pharmacist event schedule.

Ask a Question
IMPORTANT: About This Section and Other User-Generated Content on WebMD

The opinions expressed in WebMD User-generated content areas like reviews, ratings, blogs, or message boards are solely those of the User, who may or may not have medical or scientific training. These opinions do not represent the opinions of WebMD. User-generated content areas are not reviewed by a WebMD physician or any member of the WebMD editorial staff for accuracy, balance, objectivity, or any other purpose except for compliance with our Terms and Conditions. Some of these opinions may contain information about uses of drug products that have not been approved by the U.S. Food and Drug Administration. WebMD does not endorse any specific product, service, or treatment.

Do not consider WebMD User-generated content as medical advice. Never delay or disregard seeking professional medical advice from your doctor or other qualified healthcare provider because of something you have read on WebMD. You should always speak with your doctor before you start, stop, or change any prescribed part of your care plan or treatment. WebMD understands that reading individual, real-life experiences can be a helpful health information resource but it is never a substitute for professional medical advice, diagnosis, or treatment from a qualified health care provider.