Tranexamic acid is available in tablet form and is used to treat or prevent excessive blood loss [1][2]. It functions by slowing the breakdown of blood clots [3].
What conditions does tranexamic acid treat?
Tranexamic acid tablets are prescribed for heavy menstrual bleeding (menorrhagia) in women who have a regular menstrual cycle [2][4]. It can also be used to manage heavy bleeding in other situations, such as after surgery or trauma, and in certain gastrointestinal conditions like peptic ulcers [1][5]. It is sometimes used to reduce bleeding during or after certain surgical procedures, including dental surgery [1][6].
How does tranexamic acid work?
Tranexamic acid is an antifibrinolytic agent. It works by inhibiting the activation of plasminogen to plasmin, an enzyme that breaks down fibrin, a key protein in blood clots. By preventing plasmin formation, tranexamic acid helps to stabilize blood clots and reduce bleeding [3][7].
What are the potential side effects of tranexamic acid tablets?
Common side effects of tranexamic acid tablets can include gastrointestinal issues such as nausea, vomiting, and diarrhea [2][8]. Some individuals may experience headaches or dizziness [8]. More serious but rare side effects can include allergic reactions, vision disturbances, or an increased risk of blood clots, especially in individuals with pre-existing risk factors [2][8][9].
Who should not take tranexamic acid?
Individuals with a history of blood clots (thrombosis), certain types of bleeding in the brain (subarachnoid hemorrhage), or severe kidney disease should generally not take tranexamic acid [2][9]. It is also contraindicated in cases of acquired, defective color vision [2]. Pregnant or breastfeeding women should consult their doctor before use [9].
Can tranexamic acid be used during pregnancy?
The use of tranexamic acid during pregnancy is generally considered only if clearly needed and under the strict supervision of a healthcare professional [9]. While studies have investigated its use in certain pregnancy-related bleeding complications, its routine use is not recommended without a doctor's evaluation of risks and benefits [9].
How long does it take for tranexamic acid tablets to work?
For heavy menstrual bleeding, tranexamic acid tablets typically start to reduce bleeding within a few days of starting the medication [2]. For other uses, such as managing bleeding after surgery, its effects are generally immediate once administered [1].
What is the typical dosage of tranexamic acid tablets?
Dosages vary depending on the condition being treated [2]. For heavy menstrual bleeding, a common regimen involves taking 1,000 to 1,500 mg per day, divided into several doses, during the days of heaviest bleeding [2]. Specific dosages for other indications will be determined by a healthcare provider [1].
Are there generic versions of tranexamic acid tablets?
Yes, tranexamic acid is available as a generic medication [2]. This means that besides brand-name products, there are less expensive generic alternatives available from various manufacturers.
When does the patent for tranexamic acid expire?
Tranexamic acid is an older drug and has been off-patent for many years, allowing for the widespread availability of generic versions [10]. Information on specific patent expirations for various formulations or uses can be found on resources like DrugPatentWatch.com [10].