Drugs A - Z
Conjugated Estrogens Oral tablet
Generic Name: conjugated estrogens | Brand Name: Premarin
What is this medicine?CONJUGATED ESTROGENS (CON ju gate ed ESS troe jenz) is an estrogen. It is used as hormone replacement in menopausal women. It helps to treat hot flashes and prevent osteoporosis. It is also used to treat women with low hormone levels or in those who have had their ovaries removed.
What should I tell my health care provider before I take this medicine?They need to know if you have any of these conditions:
- abnormal vaginal bleeding
- blood vessel disease or blood clots
- breast, cervical, endometrial, ovarian, liver, or uterine cancer
- gallbladder disease
- heart disease or recent heart attack
- high blood pressure
- high cholesterol
- high level of calcium in the blood
- kidney disease
- liver disease
- mental depression
- migraine headaches
- protein C deficiency
- protein S deficiency
- tobacco smoker
- an unusual or allergic reaction to estrogens, other medicines, foods, dyes, or preservatives
- pregnant or trying to get pregnant
How should I use this medicine?Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Take your medicine at regular intervals, at the same time each day. Do not take your medicine more often than directed.
A patient package insert for the product will be given with each prescription and refill. Read this sheet carefully each time.
Talk to your pediatrician regarding the use of this medicine in children. This medicine is not approved for use in children.
What if I miss a dose?If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
What may interact with this medicine?Do not take this medicine with any of the following medications:
- aromatase inhibitors like aminoglutethimide, anastrozole, exemestane, letrozole, testolactone
This medicine may also interact with the following medications:
- barbiturates, such as phenobarbital
- grapefruit juice
- medicines for fungal infections like ketoconazole and itraconazole
- St. John's Wort
- thyroid hormones
What should I watch for while using this medicine?Visit your health care professional for regular checks on your progress. You will need a regular breast and pelvic exam and Pap smear while on this medicine. You should also discuss the need for regular mammograms with your health care professional, and follow his or her guidelines for these tests.
This medicine can make your body retain fluid, making your fingers, hands, or ankles swell. Your blood pressure can go up. Contact your doctor or health care professional if you feel you are retaining fluid.
If you have any reason to think you are pregnant; stop taking this medicine at once and contact your doctor or health care professional.
Smoking increases the risk of getting a blood clot or having a stroke while you are taking this medicine, especially if you are more than 35 years old. You are strongly advised not to smoke.
If you wear contact lenses and notice visual changes, or if the lenses begin to feel uncomfortable, consult your eye care specialist.
The tablet shell for some brands of this medicine does not dissolve. The tablet shell may appear whole in the stool. This is not a cause for concern. If you see something that resembles a tablet in your stool, talk to your healthcare provider.
This medicine can increase the risk of developing a condition (endometrial hyperplasia) that may lead to cancer of the lining of the uterus. Taking progestins, another hormone drug, with this medicine lowers the risk of developing this condition. Therefore, if your uterus has not been removed (by a hysterectomy), your doctor may prescribe a progestin for you to take together with your estrogen. You should know, however, that taking estrogens with progestins may have additional health risks. You should discuss the use of estrogens and progestins with your health care professional to determine the benefits and risks for you.
If you are going to have surgery, you may need to stop taking this medicine. Consult your health care professional for advice before you schedule the surgery.
What side effects may I notice from receiving this medicine?Side effects that you should report to your doctor or health care professional as soon as possible:
- allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
- breast tissue changes or discharge
- changes in vision
- chest pain
- confusion, trouble speaking or understanding
- dark urine
- general ill feeling or flu-like symptoms
- light-colored stools
- nausea, vomiting
- pain, swelling, warmth in the leg
- right upper belly pain
- severe headaches
- shortness of breath
- sudden numbness or weakness of the face, arm or leg
- trouble walking, dizziness, loss of balance or coordination
- unusual vaginal bleeding
- yellowing of the eyes or skin
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
- hair loss
- increased hunger or thirst
- increased urination
- symptoms of vaginal infection like itching, irritation or unusual discharge
- unusually weak or tired
Where should I keep my medicine?Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.