Commonly Used Brand Name(s)Osphena
Therapeutic ClassificationsEndocrine-Metabolic Agent
Pharmacologic ClassificationsSelective Estrogen Receptor Modulator
Ospemifene is an estrogen agonist/antagonist that has tissue selective effects and estrogen agonistic effects in the endometrium. Risk of endometrial cancer is increased in women with a uterus who use unopposed estrogens. Risk of endometrial hyperplasia is reduced with the addition of a progestin to estrogen therapy. Therapy with estrogen-alone increases the risk of stroke and DVT. DVT and cerebral thromboembolic and hemorrhagic stroke have been reported with ospemifene use .
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Ospemifene is used to treat women with moderate to severe dyspareunia (painful intercourse) that is due to menopause. Low estrogen levels may cause changes in the vulvar and vaginal areas that lead to atrophy (a shrinking of tissues) and dryness. Ospemifene works like natural estrogen in the body.
This medicine is available only with your doctor's prescription.
It is very important that you use this medicine exactly as directed by your doctor. Do not use more of it, do not use it more often, and do not use it for a longer time than your doctor ordered. To do so may cause unwanted side effects.
This medicine comes with a patient information leaflet. Read and follow the instructions in the leaflet carefully. Ask your doctor if you have any questions.
Take this medicine with food.
The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
- For oral dosage form (tablets):
- For dyspareunia:
- Adults—60 milligrams (mg) once a day.
- Children—Use is not recommended.
- For dyspareunia:
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Use & StorageTOP
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Ospemifene is not indicated for use in the pediatric population.
Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of ospemifene in the elderly.
|All Trimesters||X||Studies in animals or pregnant women have demonstrated positive evidence of fetal abnormalities. This drug should not be used in women who are or may become pregnant because the risk clearly outweighs any possible benefit.|
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Eslicarbazepine Acetate
Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- St John's Wort
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Other Medical ProblemsTOP
The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:
- Abnormal or unusual vaginal bleeding or
- Blood clots, active or history of or
- Breast cancer, known or suspected, or a history of or
- Deep vein thrombosis (blood clot in the leg), active or history of or
- Heart attack, history of or
- Liver disease, severe or
- Pulmonary embolism (blood clot in the lung), active or history of or
- Stroke, history of or
- Tumors (estrogen-dependent), known or suspected—Should not be used in patients with these conditions.
It is very important that your doctor check your progress at regular visits. This will allow your doctor to see if the medicine is working properly and to decide if you should continue to take it.
It is unlikely that a postmenopausal woman may become pregnant. But you should know that using this medicine while you are pregnant could harm your unborn baby. If you think you have become pregnant while using the medicine, tell your doctor right away.
Using this medicine may increase your risk for blood clots, strokes, or heart attacks. Your risk for these serious problems is even greater if you have high blood pressure, high cholesterol, or diabetes, or are overweight or smoke tobacco. Talk to your doctor about this risk. Contact your doctor right away if you have chest pain, confusion, difficulty speaking, double vision, headaches, an inability to move the arms, legs or facial muscle, or an inability to speak.
Make sure any doctor who treats you knows that you are using this medicine. You may need to stop using this medicine before you have surgery or if you need to stay in bed for a long time.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.