Severe. These medicines may interact and cause very harmful effects and are usually not taken together. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.
How the interaction occurs:
Your contraceptive may make you more likely to have clotting problems.
What might happen:
Your risk of developing an unwanted blood clot, especially in the legs, may be increased.
What you should do about this interaction:
Let your healthcare professionals (e.g. doctor or pharmacist) know that you are taking a contraceptive before undergoing sclerotherapy. If you develop a warm or hardened are in your legs, aching in the legs, pins-and-needles sensations, problems bearing weight on your legs, chest pain, or shortness of breath, contact your doctor right away.Your healthcare professionals may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.
1.Watkins M. Personal communication: Fibro-Vein. STD Pharmaceutical Products Ltd. December 20, 2004.
2.Fibro-Vein (sodium tetradecyl sulphate) UK summary of product characteristics. STD Pharmaceutical Products Ltd. March 14, 2003.