The agnus-castus Vitex, marketed under the Tenag name, is a herbal remedy indicated for the treatment of irregularities in the menstrual cycle, as have large gaps or small between periods, the absence of menstruation, premenstrual syndrome and symptoms such as breast pain and excess production of prolactin.
This medicine is available in tablets and can be purchased in pharmacies for a price of about 80 reais, upon presentation of a prescription.
What is it for
The agnus-castus Vitex is a medicine indicated for the treatment of:
- Oligomenorrhea, which is characterized by very long intervals between periods;
- Polimenorrhea, in which the period between periods is very short;
- Amenorrhea, which is characterized by the absence of menstruation;
- Premenstrual syndrome;
- Breast pain;
- Overproduction of prolactin.
Learn more about the phases of a woman’s menstrual cycle and how it works.
How to use
The recommended dose is 1 40 mg tablet daily, on an empty stomach, before breakfast, for 4 to 6 months. The tablets should be taken whole.
Who should not use
This medication should not be used by people who are hypersensitive to any of the components in the formula, people who are undergoing hormone replacement treatments, or who are taking oral contraceptives or sex hormones and who have metabolic defects in FSH.
In addition, it should also not be used in children under 18, pregnant women or women who are breastfeeding.
The agnus-castus Vitex is lactose in composition and therefore must be administered with caution in individuals with lactose intolerance.
Possible side effects
Some of the most common side effects that may occur during treatment with Vitex agnus-castus are headache, allergic reactions, eczema, hives, acne, hair loss, itching, rashes, nausea, vomiting, diarrhea, stomach pain, and dry mouth.