Most birth control pills contain the two hormones estrogen and progesterone. This helps block the release of eggs from the ovary, or ovulation.
Some birth control pills, such as the minipill, help thicken cervical mucus to make it more difficult for sperm to reach an unfertilized egg. To date, the only antibiotic proven to impact birth control pills is rifampin.
This drug is used to treat tuberculosis and other bacterial infections. If you take this medication while using birth control pills, it decreases the hormone levels in your birth control pills. This decrease in hormone levels can affect whether ovulation is prevented. In other words, your birth control becomes less effective.
Rifampin also decreases hormone levels in the birth control patch and vaginal ring. A study published in the Journal of the American Academy of Dermatology concluded that hormone levels remain unchanged when the following commonly prescribed antibiotics are taken with birth control pills:. Birth control pills may make other drugs less effective, such as analgesics and blood pressure medications. The effects of antidepressants, bronchodilators, and tranquilizers may be increased when you use them with birth control pills.
In theory, similar side effects of both drugs may worsen when both types of drugs are taken together. These side effects may include:. Side effects vary depending on the person and the class of antibiotic taken. Not everyone who takes birth control pills and antibiotics experiences negative side effects.
Despite anecdotal evidence that antibiotics lessen the effectiveness of birth control pills, there may be other factors at play that lead to birth control failure. While it may seem that antibiotics are to blame, it may be a coincidence. When used as directed, birth control pills are up to 99 percent effective in preventing pregnancy. Most birth control pills are taken daily for 21 days on and seven days off. Some pills are taken for 28 straight days and others for 91 straight days.
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.
Appropriate studies on the relationship of age to the effects of norgestrel, ethinyl estradiol, and ferrous fumarate combination have not been performed in the pediatric population. However, pediatric-specific problems that would limit the usefulness of this medicine in teenagers are not expected.
This medicine may be used for birth control in teenage females but should not be used before the start of menstruation. Appropriate studies on the relationship of age to the effects of norgestrel, ethinyl estradiol, and ferrous fumarate combination have not been performed in the geriatric population.
This medicine is not indicated for use in elderly women. 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 not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.
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. 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.
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. Using this medicine with any of the following may cause an increased risk of certain side effects but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions about the use of food, alcohol, or tobacco.
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:. 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.
This medicine comes with patient instructions. Read and follow these instructions carefully. Ask your doctor or pharmacist if you have any questions. This medicine is available in blister packs. Each blister pack contains 28 tablets with different colors that need to be taken in the same order as directed on the blister pack. When you begin using this medicine, your body will require at least 7 days to adjust before a pregnancy will be prevented.
Use a second form of contraception eg, condom, spermicide, or diaphragm for the first 7 days of your first cycle of pills. Take this medicine at the same time each day. Birth control pills work best when no more than 24 hours pass between doses. Do not skip or delay taking your pill by more than 24 hours. Oral contraceptives may cause other side effects.
Call your doctor if you have any unusual problems while taking this medication. Keep this medication in the packet it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture not in the bathroom. Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. However, you should not flush this medication down the toilet.
Instead, the best way to dispose of your medication is through a medicine take-back program. It is important to keep all medication out of sight and reach of children as many containers such as weekly pill minders and those for eye drops, creams, patches, and inhalers are not child-resistant and young children can open them easily.
To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location — one that is up and away and out of their sight and reach. In case of overdose, call the poison control helpline at If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at Keep all appointments with your doctor and the laboratory. You should have a complete physical examination every year, including blood pressure measurements, breast and pelvic exams, and a Pap test.
Follow your doctor's directions for examining your breasts; report any lumps immediately. Before you have any laboratory tests, tell the laboratory personnel that you take oral contraceptives. If you wish to stop taking oral contraceptives and become pregnant, your doctor may tell you to use another method of birth control until you begin to menstruate regularly again. It may take a long time for you to become pregnant after you stop taking oral contraceptives, especially if you have never had a baby or if you had irregular, infrequent, or complete absence of menstrual periods before taking oral contraceptives.
However, it is possible to become pregnant within days of stopping certain oral contraceptives. If you want to stop taking oral contraceptives but do not want to become pregnant, you should begin using another type of birth control as soon as you stop taking oral contraceptives.
Discuss any questions that you may have with your doctor. Oral contraceptives may decrease the amount of folate in your body. Folate is important for the development of a healthy baby, so you should talk to your doctor if you want to become pregnant soon after you stop taking oral contraceptives.
Your doctor may recommend that you take a folate supplement or an oral contraceptive that contains a folate supplement Beyaz, Safyral. Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription. It is important for you to keep a written list of all of the prescription and nonprescription over-the-counter medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements.
You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies. Estrogen and Progestin Oral Contraceptives pronounced as ess' troe jen proe jes tin.
Why is this medication prescribed? How should this medicine be used? Other uses for this medicine What special precautions should I follow?
What special dietary instructions should I follow? What should I do if I forget a dose? What side effects can this medication cause? What should I know about storage and disposal of this medication? Brand names of combination products Other names.
Other uses for this medicine. What special precautions should I follow? Before taking oral contraceptives, tell your doctor and pharmacist if you are allergic to estrogen, progestin, or any other medications. Be sure to mention any of the following: acetaminophen APAP, Tylenol ; antibiotics such as ampicillin Principen , clarithromycin Biaxin ,erythromycin E. Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
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