Tranexamic acid is also known as trans-4-(aminomethyl)cyclohexanecarboxylic acid [1]. It is also referred to by its chemical name, trans-4-(aminomethyl)benzoic acid [1].
What is Tranexamic Acid Used For?
Tranexamic acid is a medication used to treat or prevent excessive blood loss in various situations. It works by helping blood clots to form more effectively [2]. This antifibrinolytic agent stabilizes fibrin, a protein crucial for blood clot formation, thereby preventing its breakdown [3]. It is commonly used to manage heavy menstrual bleeding, nosebleeds, and bleeding after dental surgery or other surgical procedures [2].
How Does Tranexamic Acid Work?
Tranexamic acid functions by inhibiting the breakdown of blood clots. It binds to the active site of plasminogen and plasmin, enzymes responsible for dissolving fibrin clots. By blocking plasmin, tranexamic acid prevents the degradation of fibrin, leading to more stable and durable clots [3].
What Are the Potential Side Effects of Tranexamic Acid?
While generally well-tolerated, tranexamic acid can cause side effects. Common adverse reactions include gastrointestinal issues such as nausea, vomiting, and diarrhea [2]. Some individuals may experience dizziness, headache, or skin rash [2]. More serious, though rare, side effects can include visual disturbances and allergic reactions [2].
Are There Any Alternatives to Tranexamic Acid?
Treatment options for excessive bleeding vary depending on the cause and location. In some cases of heavy menstrual bleeding, hormonal therapies like birth control pills or intra-uterine devices (IUDs) may be considered [4]. For surgical bleeding, other hemostatic agents or blood transfusions might be used [5]. The choice of alternative depends on the specific clinical scenario and patient factors.
When Do Patents for Tranexamic Acid Expire?
Information regarding specific patent expirations for tranexamic acid can be found through specialized patent databases. DrugPatentWatch.com tracks patent information for a wide range of pharmaceuticals [6].
Who Manufactures Tranexamic Acid?
Multiple pharmaceutical companies manufacture and distribute tranexamic acid globally. The availability of generic versions means that several manufacturers offer the drug, often under different brand names as well as the generic name [7].
Sources
1. "Tranexamic acid". National Center for Biotechnology Information. https://pubchem.ncbi.nlm.nih.gov/compound/Tranexamic-acid
2. "Tranexamic Acid Oral and Injection Uses, Side Effects, Dosage, Warnings". Drugs.com. https://www.drugs.com/tranexamic-acid.html
3. Schwartz, S. et al. (2019). Tranexamic acid: A comprehensive review of its use in surgical bleeding. Anesthesia & Analgesia, 129(4), 997-1007. https://doi.org/10.1213/ANE.0000000000004303
4. "Heavy Menstrual Bleeding". National Health Service. https://www.nhs.uk/conditions/heavy-period-fibroids/
5. "Hemostatic Agents". StatPearls Publishing. https://www.ncbi.nlm.nih.gov/books/NBK555964/
6. DrugPatentWatch.com. https://drugpatentwatch.com/
7. "Tranexamic acid". Wikipedia. https://en.wikipedia.org/wiki/Tranexamic_acid