Zenatane

Zenatane is a prescription medication used to treat the most severe form of acne called nodular acne. Zenatane belongs to a group of drugs called retinoids. It is thought to work by preventing oil production in glands under the skin.

This medication comes in capsule form and is usually taken twice daily, with food. Zenatane may be taken for four or five months. A longer period of use is not recommended.

Common side effects of Zenatane include dry skin, chapped lips, dry eyes, or dry nose causing nosebleeds. Zenatane can also cause birth defects, miscarriages, or premature births.

Because Zenatane can cause birth defects, patients, doctors, and pharmacies must be registered with a special distribution program called the iPLEDGE program.

Zenatane™ is a prescription medication used to treat severe from of acne (nodular acne) that has not responded to other treatments.

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.

• Dr. Reddys Laboratories Limited

Serious side effects have been reported with Zenatane™. See “Zenatane™ Precautions” section.

Common side effects of Zenatane™ may include the following:

• dry skin
• chapped lips
• dry eyes
• dry nose that may lead to nosebleeds

Call your doctor if you get any side effect that bothers you or that does not go away.

Tell your doctor about all of the medicines you take including prescription and non-prescription medicines, vitamins and herbal supplements. Zenatane™ and certain other medicines can interact with each other, sometimes causing serious side effects. Especially tell your doctor if you take:

• Vitamin A supplements. Vitamin A in high doses has many of the same side effects as Zenatane™. Taking both together may increase your chance of getting side effects.
• tetracycline antibiotics such as doxycycline, tetracycline, or minocycline (Minocin)
• progestin-only birth control pills (mini-pills) such as Camilla, and Norethindrone
• Dilantin (phenytoin)
• corticosteroids such as dexamethasone, hydrocortisone, or fludrocortisone (Florinef)
• St. John’s wort

These medicines should not be used with Zenatane™ unless your doctor tells you it is okay.

Know the medicines you take. Keep a list of them to show to your doctor and pharmacist. Do not take any new medicine without talking with your doctor.

• Because Zenatane™ can cause birth defects, Zenatane is only for patients who can understand and agree to carry out all of the instructions in the iPLEDGE program.
• Zenatane™ may cause serious mental health problems.

Zenatane™ can cause serious side effects:

1) Birth defects (deformed babies), loss of a baby before birth (miscarriage), death of the baby and early (premature) births. Female patients who are pregnant or who plan to become pregnant must not take Zenatane™. Female patients must not get pregnant:

• for 1 month before starting Zenatane™
• while taking Zenatane™
• for 1 month after stopping Zenatane™

If you get pregnant while taking Zenatane™, stop taking it right away and call your doctor. Doctors and patients should report all cases of pregnancy to:

• FDA MedWatch at 1-800-FDA-1088, and
• the iPLEDGE pregnancy registry at 1-866-495-0654

2) Serious mental health problems. Zenatane™ may cause:

• depression
• psychosis (seeing or hearing things that are not real)
• suicide. Some patients taking Zenatane™ have had thoughts about hurting themselves or putting an end to their own lives (suicidal thoughts). Some people tried to end their own lives. And some people have ended their own lives.

Stop Zenatane™ and call your doctor right away if you or a family member notices that you have any of the following signs and symptoms of depression or psychosis:

• start to feel sad or have crying spells
• lose interest in activities you once enjoyed
• sleep too much or have trouble sleeping
• become more irritable, angry, or aggressive than usual (for example, temper outbursts, thoughts of violence)
• have a change in your appetite or body weight
• have trouble concentrating
• withdraw from your friends or family
• feel like you have no energy
• have feelings of worthlessness or guilt
• start having thoughts about hurting yourself or taking your own life (suicidal thoughts)
• start acting on dangerous impulses
• start seeing or hearing things that are not real

Other serious side effects:

• Serious brain problems: Zenatane™ can increase the pressure in your brain. This can lead to permanent loss of eyesight and, in rare cases, death. Stop taking Zenatane™ and call your doctor right away if you get any of these signs of increased brain pressure:
  • bad headache
  • blurred vision
  • dizziness
  • nausea or vomiting
  • seizures (convulsions)
  • stroke
• Skin problems: Skin rash can occur in patients taking Zenatane™. In some patients a rash can be serious. Stop using Zenatane™ and call your doctor right away if you develop conjunctivitis (red or inflamed eyes, like “pink eye”), a rash with a fever, blisters on legs, arms or face and/or sores in your mouth, throat, nose, eyes, or if your skin begins to peel.
• Stomach area (abdomen) problems: Certain symptoms may mean that your internal organs are being damaged. These organs include the liver, pancreas, bowel (intestines) and esophagus (connection between mouth and stomach). If your organs are damaged, they may not get better even after you stop taking Zenatane™. Stop taking Zenatane™ and call your doctor if you get:
  • severe stomach, chest or bowel pain.
  • trouble swallowing or painful swallowing.
  • new or worsening heartburn.
  • diarrhea.
  • rectal bleeding.
  • yellowing of your skin or eyes.
  • dark urine.
• Bone and muscle problems: Zenatane™ may affect bones, muscles, and ligaments and cause pain in your joints or muscles. Tell your doctor if you plan hard physical activity during treatment with Zenatane™. Tell your doctor if you get:
  • back pain.
  • joint pain.
  • broken bone. Tell all healthcare providers that you take Zenatane™ if you break a bone.

  Stop Zenatane™ and call your doctor right away if you have muscle weakness. Muscle weakness with or without pain can be a sign of serious muscle damage.

  Zenatane™ may stop long bone growth in teenagers who are still growing.

• Hearing problems: Stop using Zenatane™ and call your doctor if your hearing gets worse or if you have ringing in your ears. Your hearing loss may be permanent.
• Vision problems: Zenatane™ may affect your ability to see in the dark. This condition usually clears up after you stop taking isotretinoin, but it may be permanent. Other serious eye effects can occur. Stop taking Zenatane™ and call your doctor right away if you have any problems with your vision or dryness of the eyes that is painful or constant. If you wear contact lenses, you may have trouble wearing them while taking Zenatane™ and after treatment.
• Lipid (fats and cholesterol in blood) problems: Zenatane™ can raise the level of fats and cholesterol in your blood. This can be a serious problem. Return to your doctor for blood tests to check your lipids and to get any needed treatment. These problems usually go away when Zenatane™ treatment is finished.
• Serious allergic reactions: Stop taking Zenatane™ and get emergency care right away if you develop hives, a swollen face or mouth or have trouble breathing. Stop taking Zenatane™ and call your doctor if you get a fever, rash or red patches or bruises on your legs.
• Blood sugar problems: Zenatane™ may cause blood sugar problems including diabetes. Tell your doctor if you are very thirsty or urinate a lot.
• Decreased red and white blood cells: Call your doctor if you have trouble breathing, faint or feel weak.

After stopping Zenatane™, you may also need follow-up mental health care if you had any of these symptoms.

• Do not take Zenatane™ if you are pregnant, plan to become pregnant or become pregnant during Zenatane™ treatment. Zenatane™ causes severe birth defects.
• Do not take Zenatane™ if you are allergic to anything in it.

Medicines can interact with certain foods. In some cases, this may be harmful and your doctor may advise you to avoid certain foods. In the case of Zenatane there are no specific foods that you must exclude from your diet when receiving Zenatane.

Tell your doctor if you have any of the following health conditions:

• mental problems
• asthma
• liver disease
• diabetes
• heart disease
• bone loss (osteoporosis) or weak bones
• an eating problem called anorexia nervosa (where people eat too little)
• food or medicine allergies

Tell your doctor if you are pregnant or breastfeeding. Zenatane must not be used by women who are pregnant or breastfeeding.

Tell your doctor about all of the medicines you take including prescription and non-prescription medicines, vitamins and herbal supplements. Zenatane and certain other medicines can interact with each other, sometimes causing serious side effects.

Tell your doctor if you are pregnant or plan to become pregnant.

The FDA categorizes medications based on safety for use during pregnancy. Five categories - A, B, C, D, and X, are used to classify the possible risks to an unborn baby when a medication is taken during pregnancy.

Zenatane falls into category X. Zenatane must not be taken by patients who are pregnant or who may become pregnant. There is a high risk that Zenatane will cause birth defects (deformed babies), loss of a baby before birth (miscarriage), death of the baby and early (premature) births. See "Drug Precautions" section.

A program called iPLEDGE has been set up to make sure that pregnant women do not take Zenatane and that women do not become pregnant while taking Zenatane. All patients, including women who cannot become pregnant and men, can get Zenatane only if they are registered with iPLEDGE, have a prescription from a doctor who is registered with iPLEDGE and fill the prescription at a pharmacy that is registered with iPLEDGE. Before prescribing Zenatane, your doctor will:

• explain the iPLEDGE program to you
• have you sign the Patient Information/Informed Consent form (for all patients). Female patients who can get pregnant must also sign another consent form.

You will not be prescribed Zenatane if you cannot agree to or follow all the instructions of the iPLEDGE program. Female patients must not get pregnant:

• for 1 month before starting Zenatane
• while taking Zenatane
• for 1 month after stopping Zenatane

• FDA MedWatch at 1-800-FDA-1088, and
• the iPLEDGE pregnancy registry at 1-866-495-0654

Do not breastfeed while taking Zenatane and for one month after stopping Zenatane. It is not known if Zenatane is excreted in human breast milk or if it will harm your nursing baby. Tell your doctor if you are breastfeeding before you receive Zenatane.

Take Zenatane exactly as prescribed. You must also follow all the instructions of the iPLEDGE program. Before prescribing Zenatane, your doctor will:

• explain the iPLEDGE program to you
• have you sign the Patient Information/Informed Consent form (for all patients). Female patients who can get pregnant must also sign another consent form.

You will not be prescribed Zenatane if you cannot agree to or follow all the instructions of the iPLEDGE program.

• You will get no more than a 30 day supply of Zenatane at a time. This is to make sure you are following the iPLEDGE program. You should talk with your doctor each month about side effects.
• The amount of Zenatane you take has been specially chosen for you. It is based on your body weight, and may change during treatment.
• Take Zenatane 2 times a day with a meal, unless your doctor tells you otherwise. Swallow your Zenatane capsules whole with a full glass of liquid. Do not chew or suck on the capsule. Zenatane can hurt the tube that connects your mouth to your stomach (esophagus) if it is not swallowed whole.
• If you miss a dose, just skip that dose. Do not take two doses at the same time.
• If you take too much Zenatane or overdose, call your doctor or poison control center right away.
• Your acne may get worse when you first start taking Zenatane. This should last only a short while. Talk with your doctor if this is a problem for you.
• You must return to your doctor as directed to make sure you don’t have signs of serious side effects. Your doctor may do blood tests to check for serious side effects from Zenatane. Female patients who can get pregnant will get a pregnancy test each month.
• Female patients who can get pregnant must agree to use two separate forms of effective birth control at the same time one month before, while taking and for one month after taking Zenatane. You must access the iPLEDGE system to answer questions about the program requirements and to enter your two chosen forms of birth control. To access the iPLEDGE system, go to www.ipledgeprogram.com or call 1-866-495-0654.

You must talk about effective birth control methods with your doctor or go for a free visit to talk about birth control with another doctor or family planning expert. Your doctor can arrange this free visit, which will be paid for by the company that makes Zenatane.

If you have sex at any time without using two forms of effective birth control, get pregnant or miss your expected period, stop using Zenatane and call your doctor right away.

What you should avoid while taking Zenatane:

• Do not get pregnant while taking Zenatane and for one month after stopping Zenatane. See “Zenatane Precautions" section.
• Do not breastfeed while taking Zenatane and for one month after stopping Zenatane. It is not known if Zenatane can pass through your milk and harm the baby.
• Do not give blood while you take Zenatane and for one month after stopping Zenatane. If someone who is pregnant gets your donated blood, her baby may be exposed to Zenatane and may be born with birth defects.
• Do not take other medicines or herbal products with Zenatane unless you talk to your doctor.
• Do not drive at night until you know if Zenatane has affected your vision. Zenatane may decrease your ability to see in the dark.
• Do not have cosmetic procedures to smooth your skin, including waxing, dermabrasion, or laser procedures, while you are using Zenatane and for at least 6 months after you stop. Zenatane can increase your chance of scarring from these procedures. Check with your doctor for advice about when you can have cosmetic procedures.
• Avoid sunlight and ultraviolet lights as much as possible. Tanning machines use ultraviolet lights. Zenatane may make your skin more sensitive to light.
• Do not share Zenatane with other people. It can cause birth defects and other serious health problems.

Take this medication exactly as prescribed by your doctor. Follow the directions on your prescription label carefully.

The dose your doctor recommends may be based on your weight.

The recommended dosage range for Zenatane (isotretinoin) is 0.5 to 1 mg/kg/day given in two divided doses.

Some patients may require dose adjustments up to 2 mg/kg/day.

If you take too much this medication, call your healthcare provider or local Poison Control Center, or seek emergency medical attention right away.

If this medication is administered by a healthcare provider in a medical setting, it is unlikely that an overdose will occur. However, if an overdose is suspected, seek emergency medical attention.

• Store at 68° to 77°F (20° to 25°C).
• Protect from light.
• Keep Zenatane and all medicines out of the reach of children.

CONTRAINDICATIONS AND WARNINGS

Zenatane™ must not be used by female patients who are or may become pregnant. There is an extremely high risk that severe birth defects will result if pregnancy occurs while taking Zenatane™ in any amount, even for short periods of time. Potentially any fetus exposed during pregnancy can be affected. There are no accurate means of determining whether an exposed fetus has been affected.

Birth defects which have been documented following Zenatane™ exposure include abnormalities of the face, eyes, ears, skull, central nervous system, cardiovascular system, and thymus and parathyroid glands. Cases of IQ scores less than 85 with or without other abnormalities have been reported. There is an increased risk of spontaneous abortion, and premature births have been reported.

Documented external abnormalities include: skull abnormality; ear abnormalities (including anotia, micropinna, small or absent external auditory canals); eye abnormalities (including microphthalmia); facial dysmorphia; cleft palate. Documented internal abnormalities include: CNS abnormalities (including cerebral abnormalities, cerebellar malformation, hydrocephalus, microcephaly, cranial nerve deficit); cardiovascular abnormalities; thymus gland abnormality; parathyroid hormone deficiency. In some cases death has occurred with certain of the abnormalities previously noted.

If pregnancy does occur during treatment of a female patient who is taking Zenatane™ , Zenatane™must be discontinued immediately and she should be referred to an Obstetrician-Gynecologist experienced in reproductive toxicity for further evaluation and counseling. 

Special Prescribing Requirements 

Because of Zenatane™ teratogenicity and to minimize fetal exposure, Zenatane™ is approved for marketing only under a special restricted distribution program approved by the Food and Drug Administration. This program is called iPLEDGE™. Zenatane™ must only be prescribed by prescribers who are registered and activated with the iPLEDGE program. Zenatane™ must only be dispensed by a pharmacy registered and activated with iPLEDGE, and must only be dispensed to patients who are registered and meet all the requirements of iPLEDGE.