What is Twirla: Uses, Warnings & Interactions

Updated May 14, 2025  •  Published Dec 31, 2020

Twirla overview

BRAND NAMES:

  • Twirla

Generic Names:

  • Twirla

Uses:

  • Prevents pregnancy in patients with a BMI less than 30 kilograms (kg) per square meter (m2).

Therapeutic Classes:

  • Endocrine-Metabolic Agent

Forms:

  • Patch

How it’s taken:

  • Absorbed through the skin

What is Twirla used for?

What form(s) does Twirla come in

  • Patch

What are common Twirla doses?

  • Patch Weekly 120-30MCG/24HR

Common Twirla prescriptions

  • Twirla
    1 box (3 patches), 120-30mcg/24 hr box

How to take Twirla

  • Carefully follow your doctor's instructions about when to start using your medicine. You may begin using the patch during the first 24 hours of your menstrual period. This will be your Patch Change Day every week.

  • If you forget to remove your patch for the patch free week: Past Day 22: Take the patch off as soon as you remember. Start your next patch cycle on the usual Patch Change Day.If you go more than 7 days without a patch, use another form of birth control to keep from getting pregnant. The patch should never be off more than 7 days in a row.

  • Transdermal routeYour doctor will tell you how many patches to use, where to apply them, and how often to apply them. Do not use more patches or apply them more often than your doctor tells you to. Use only 1 patch at a time.

  • If you want to change your Patch Change Day, complete your current patch cycle first, removing the third patch on the correct day. Apply a new patch on your chosen day during the patch free week.

  • If you forget to change your patch in the middle of the cycle (Day 8 or 15), apply a new patch during the first 48 hours. The next patch should be applied on your usual Patch Change Day. An additional form of birth control is not needed.

  • Read and follow the patient instructions that come with this medicine. Talk to your doctor or pharmacist if you have any questions.

  • To use the patch:Transdermal routeWash your hands with soap and water before and after applying a patch. Transdermal routeLeave the patch in its sealed wrapper until you are ready to put it on. Tear the wrapper open carefully. NEVER CUT the wrapper or the patch with scissors. Do not use any patch that has been cut by accident. Transdermal routeThe patient instructions will show the body areas where you can wear the patch. When putting on each new patch, choose a different place within these areas. Do not put the new patch on the same place you wore the last one. Be sure to remove the old patch before applying a new one. You may apply the patch on the lower stomach area, buttocks, or upper part of the body. Make sure the application site is clean and dry before you use the patch. Do not put the patch on the waistline, near clothing, or undergarment seams, on the breasts, or cut or irritated skin.Avoid using make up, creams, lotions, oils, powders, or any other products on the skin where you plan to apply the patch.The patch should be flat and smooth without wrinkles or folds when you apply it on the skin.Check the path everyday and after any water exposure, including bathing. showering, or swimming, to make sure it is in the right place.Transdermal routePut on a new patch if the old one has fallen off and cannot be reapplied. If the patch starts to lift or completely falls off for less than 24 hours, try to put it on again or replace with a new patch right away. An additional form of birth control is not needed.If the patch starts to lift or completely falls off for more than 24 hours, you may not be protected from pregnancy. Start over on a new patch cycle right away. The day you apply a new patch is now your new Day 1 and new Patch Change Day. You must use another form of birth control (including condoms, spermicide, diaphragm) during the first week of the new patch cycle.

  • Transdermal routeStore the patches at room temperature in a closed container, away from heat, moisture, and direct light.

  • Missed dose: This medicine has specific patient instructions on what to do if you miss a dose. Read and follow these instructions carefully, and call your doctor if you have any questions.

  • If you forget to change your patch for more than 48 hours, start over a new 4-week patch cycle right away. The day you apply a new patch is now your new Day 1 and new Patch Change Day. You must use another form of birth control during the first week of the new patch cycle.

  • If you forget to change your patch at the start of any cycle (Day 1), apply a new patch as soon as you remember. This is now your new Day 1 and new Patch Change Day. You must use another form of birth control (including condoms, spermicide, diaphragm) during the first week of the new patch cycle.

  • Carefully follow your doctor's instructions about when to start using your medicine. You may begin using the patch during the first 24 hours of your menstrual period. This will be your Patch Change Day every week.

  • Missed dose: This medicine has specific patient instructions on what to do if you miss a dose. Read and follow these instructions carefully, and call your doctor if you have any questions.

  • Transdermal routeYour doctor will tell you how many patches to use, where to apply them, and how often to apply them. Do not use more patches or apply them more often than your doctor tells you to. Use only 1 patch at a time.

  • If you forget to remove your patch for the patch free week: Past Day 22: Take the patch off as soon as you remember. Start your next patch cycle on the usual Patch Change Day.If you go more than 7 days without a patch, use another form of birth control to keep from getting pregnant. The patch should never be off more than 7 days in a row.

  • If you want to change your Patch Change Day, complete your current patch cycle first, removing the third patch on the correct day. Apply a new patch on your chosen day during the patch free week.

  • If you forget to change your patch at the start of any cycle (Day 1), apply a new patch as soon as you remember. This is now your new Day 1 and new Patch Change Day. You must use another form of birth control (including condoms, spermicide, diaphragm) during the first week of the new patch cycle.

  • Transdermal routeStore the patches at room temperature in a closed container, away from heat, moisture, and direct light.

  • To use the patch:Transdermal routeWash your hands with soap and water before and after applying a patch. Transdermal routeLeave the patch in its sealed wrapper until you are ready to put it on. Tear the wrapper open carefully. NEVER CUT the wrapper or the patch with scissors. Do not use any patch that has been cut by accident. Transdermal routeThe patient instructions will show the body areas where you can wear the patch. When putting on each new patch, choose a different place within these areas. Do not put the new patch on the same place you wore the last one. Be sure to remove the old patch before applying a new one. You may apply the patch on the lower stomach area, buttocks, or upper part of the body. Make sure the application site is clean and dry before you use the patch. Do not put the patch on the waistline, near clothing, or undergarment seams, on the breasts, or cut or irritated skin.Avoid using make up, creams, lotions, oils, powders, or any other products on the skin where you plan to apply the patch.The patch should be flat and smooth without wrinkles or folds when you apply it on the skin.Check the path everyday and after any water exposure, including bathing. showering, or swimming, to make sure it is in the right place.Transdermal routePut on a new patch if the old one has fallen off and cannot be reapplied. If the patch starts to lift or completely falls off for less than 24 hours, try to put it on again or replace with a new patch right away. An additional form of birth control is not needed.If the patch starts to lift or completely falls off for more than 24 hours, you may not be protected from pregnancy. Start over on a new patch cycle right away. The day you apply a new patch is now your new Day 1 and new Patch Change Day. You must use another form of birth control (including condoms, spermicide, diaphragm) during the first week of the new patch cycle.

  • If you forget to change your patch in the middle of the cycle (Day 8 or 15), apply a new patch during the first 48 hours. The next patch should be applied on your usual Patch Change Day. An additional form of birth control is not needed.

  • If you forget to change your patch for more than 48 hours, start over a new 4-week patch cycle right away. The day you apply a new patch is now your new Day 1 and new Patch Change Day. You must use another form of birth control during the first week of the new patch cycle.

  • Read and follow the patient instructions that come with this medicine. Talk to your doctor or pharmacist if you have any questions.

What to do if you miss a dose of Twirla

Twirla contraindications

  • This medicine is not right for everyone. Do not use this medicine if you had an allergic reaction to levonorgestrel or ethinyl estradiol, or if you are pregnant. Do not use this medicine if you have active liver disease or liver cancer, breast cancer, a blood vessel disorder, heart disease, high blood pressure that is not controlled, diabetes, or a history of blood clots, heart attack, or stroke. Do not use this medicine if you have unusual vaginal bleeding that has not been checked by a doctor, BMI of 30 kg/m2 or more, or if you ever had jaundice (yellow skin or eyes) caused by pregnancy or birth control pills.

Twirla warnings

  • It is not safe to take this medicine during pregnancy. It could harm an unborn baby. Tell your doctor right away if you become pregnant.

  • You might have some light bleeding or spotting, especially during the first 3 months of using this medicine. This is usually normal and should not last long. However, if you have heavy bleeding or the bleeding lasts more than seven days in a row, call your doctor€™s office.

  • Transdermal routeFold the used patch in half with the sticky sides together. Throw any used patch away so that children or pets cannot get to it. You will also need to throw away old patches after the expiration date has passed.

  • Tell your doctor if you are breastfeeding, or if you have recently been pregnant. Tell your doctor if you have gallbladder disease, uncontrolled high cholesterol, or a history of depression, hereditary angioedema, or dark patches in the face during pregnancy (chloasma gravidarum). Tell your doctor if you smoke, have a BMI greater than 25 kg/m2 but less than 30 kg/m2, or if you are having surgery that requires inactivity for a long time.

  • This medicine may cause the following problems:Increased risk of heart attack, stroke, or blood clotsLiver problems (including liver tumor or cancer)High blood pressureGallbladder diseaseHigh cholesterol in the blood, which can lead to swelling of the pancreas (pancreatitis)Changes in mood or behaviorIncreased risk of cancer (including cancer of the cervix)

  • Tell any doctor or dentist who treats you that you are using this medicine. You may need to stop using this medicine several days before you have surgery or medical tests. Do not use this medicine at least 4 weeks before and 2 weeks after a surgical procedure.

  • Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.

  • This medicine will not protect you from getting HIV/AIDS or other sexually transmitted diseases.

  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.

Twirla interactions

  • Do not use this medicine together with medicine to treat hepatitis C virus infection, including ombitasvir/paritaprevir/ritonavir, with or without dasabuvir. You may restart treatment with this medicine at least 2 weeks after completing treatment for hepatitis C infection.

  • Do not eat grapefruit or drink grapefruit juice while you are using this medicine.

  • Some medicines can affect how levonorgestrel/ethinyl estradiol works. Tell your doctor if you are using any of the following:Acetaminophen, aprepitant, ascorbic acid, atorvastatin, bosentan, cyclosporine, lamotrigine, morphine, prednisolone, rosuvastatin, salicylic acid, St John's wort, theophylline, tizanidineMedicine to treat HIV/AIDS (including amprenavir/ritonavir, atazanavir/ritonavir, boceprevir, darunavir/ritonavir, efavirenz, etravirine, fosamprenavir/ritonavir, indinavir, lopinavir/ritonavir, nelfinavir, nevirapine, telaprevir, tipranavir/ritonavir)Medicine to treat infection (including fluconazole, griseofulvin, itraconazole, ketoconazole, rifabutin, rifampin, rufinamide, voriconazole)Medicine to treat seizures (including carbamazepine, felbamate, oxcarbazepine, phenytoin, topiramate)Thyroid medicine

  • If you are using colesevelam, take it 4 or more hours before using levonorgestrel/ethinyl estradiol.

Twirla side effects

Serious Side Effects

  • Unusual changes in mood or behavior

  • Chest pain or tightness, trouble breathing, coughing up blood

  • Irregular, late, or missed menstrual periods

  • Numbness or weakness in your arm or leg, or on one side of your body

  • Sudden or severe headache, problems with vision, speech, or walking

  • Dark urine, pale stools, loss of appetite, yellow skin or eyes

  • Rapid weight gain, swelling in your hands, ankles, or feet

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

  • Heavy vaginal bleeding

  • Pain in your lower leg (calf)

  • Change in how much or how often you urinate

  • Sudden and severe stomach pain, nausea, vomiting, lightheadedness

Less Serious Side Effects

  • Pain, itching, burning, swelling, or a lump under your skin where the patch is placed

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