ConZip

Name: ConZip

Pregnancy & Lactation

Pregnancy: Prolonged use of opioid analgesics during pregnancy for medical or nonmedical purposes can result in physical dependence in the neonate and neonatal opioid withdrawal syndrome shortly after birth; observe newborns for symptoms of neonatal opioid withdrawal syndrome and manage accordingly

Neonatal seizures, neonatal withdrawal syndrome, fetal death and still birth have been reported with tramadol during post-approval use of tramadol immediate-release products

Pregnancy

Prolonged use of opioid analgesics during pregnancy may cause neonatal opioid withdrawal syndrome; available data in pregnant women are insufficient to inform a drug-associated risk for major birth defects and miscarriage; observe newborns for symptoms of neonatal opioid withdrawal syndrome and manage accordingly  

Labor and delivery

  • Use of tramadol during labor may lead to respiratory depression in the neonate
  • Opioids cross the placenta and may produce respiratory depression and psycho-physiologic effects in neonates; an opioid antagonist, such as naloxone, must be available for reversal of opioid-induced respiratory depression in the neonate; use is not recommended in pregnant women during or immediately prior to labor, when other analgesic techniques are more appropriate; opioid analgesics, can prolong labor through actions which temporarily reduce the strength, duration, and frequency of uterine contractions; however, this effect is not consistent and may be offset by increased rate of cervical dilation, which tends to shorten labor; monitor neonates exposed to opioid analgesics during labor for signs of excess sedation and respiratory depression

Lactation

Tramadol and its active metabolite, O-desmethyltramadol (M1), are present in human milk; there are published studies and cases that have reported excessive sedation, respiratory depression, and death in infants exposed to codeine via breast milk; women who are ultra-rapid metabolizers of tramadol achieve higher than expected serum levels of opioids, potentially leading to higher levels of M1 in breast milk that can be dangerous in their breastfed infants; in women with normal tramadol metabolism (normal CYP2D6 activity), the amount of tramadol secreted into human milk is low and dose-dependent

Because of potential for serious adverse reactions, including excess sedation, respiratory depression, and death in a breastfed infant, breastfeeding is not recommended during treatment

Pregnancy Categories

A:Generally acceptable. Controlled studies in pregnant women show no evidence of fetal risk.

B:May be acceptable. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies done and showed no risk.

C:Use with caution if benefits outweigh risks. Animal studies show risk and human studies not available or neither animal nor human studies done.

D:Use in LIFE-THREATENING emergencies when no safer drug available. Positive evidence of human fetal risk.

X:Do not use in pregnancy. Risks involved outweigh potential benefits. Safer alternatives exist.

NA:Information not available.

ConZip Overview

ConZip is a prescription medication used to treat moderate to moderately severe chronic pain in adults. ConZip belongs to a group of drugs called opioid analgesics, which work by blocking pain signals in the body.

ConZip comes in extended-release capsule form and is taken once a day, with liquid. Do not chew, divide, or break ConZip capsules. Swallow the capsules whole.

Common side effects of ConZip include nausea, constipation, dry mouth, and fatigue. ConZip can also cause dizziness or drowsiness. Do not drive or operate heavy machinery until you know how ConZip affects you.

ConZip Dosage

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

The ConZip dose your doctor recommends will be based on the following:

  • the severity of your pain
  • other medical conditions you have
  • other medications you are taking
  • how you respond to this medication
  • your age

The recommended dose range of ConZip (tramadol) extended-release capsules is 100 to 300 mg once every day.

ConZip Overdose

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

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

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. A tramadol overdose can be fatal, especially in a child or other person using the medicine without a prescription. Overdose symptoms may include slow breathing and heart rate, severe drowsiness, cold and clammy skin, and fainting.

What other drugs will affect ConZip (tramadol)?

Narcotic (opioid) medication can interact with many other drugs and cause dangerous side effects or death. Be sure your doctor knows if you also use:

  • other narcotic medications--opioid pain medicine or prescription cough medicine;

  • drugs that make you sleepy or slow your breathing--a sleeping pill, muscle relaxer, sedative, tranquilizer, or antipsychotic medicine; or

  • drugs that affect serotonin levels in your body--medicine for depression, Parkinson's disease, migraine headaches, serious infections, or prevention of nausea and vomiting.

This list is not complete. Other drugs may interact with tramadol, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide.

Precautions While Using ConZip

It is very important that your doctor check your progress at regular visits to make sure the medicine is working properly and to check for any unwanted effects.

Do not use this medicine if you are using or have used an MAO inhibitor (eg, Eldepryl®, Marplan®, Nardil®, or Parnate®) within the past 14 days.

Check with your doctor before using this medicine with alcohol or other medicines that affect the central nervous system (CNS). The use of alcohol or other medicines that affect the CNS with (drug) may worsen the side effects of this medicine, such as dizziness, poor concentration, drowsiness, unusual dreams, and trouble with sleeping. Some examples of medicines that affect the CNS are antihistamines or medicine for allergies or colds, sedatives, tranquilizers, or sleeping medicines, medicine for depression, medicine for anxiety, prescription pain medicine or narcotics, medicine for attention deficit and hyperactivity disorder, medicine for seizures or barbiturates, muscle relaxants, or anesthetics, including some dental anesthetics.

Using this medicine while you are pregnant may cause neonatal withdrawal syndrome in your newborn babies. Tell your doctor right away if your baby has an abnormal sleep pattern, diarrhea, a high-pitched cry, irritability, shakiness or tremors, weight loss, vomiting, or fails to gain weight.

Check with your doctor right away if you have anxiety, restlessness, a fast heartbeat, fever, sweating, muscle spasms, twitching, nausea, vomiting, diarrhea, or see or hear things that are not there. These may be symptoms of a serious condition called serotonin syndrome. Your risk may be higher if you also take certain other medicines that affect serotonin levels in your body.

This medicine can increase thoughts of suicide. Tell your doctor right away if you start to feel more depressed or have thoughts about hurting yourself. Report any unusual thoughts or behaviors that trouble you, especially if they are new or get worse quickly. Make sure your caregiver knows if you have trouble sleeping, get upset easily, have a big increase in energy, or start to act reckless. Tell your doctor if you have any sudden or strong feelings, such as feeling nervous, angry, restless, violent, or scared. Let your doctor know if you or anyone in your family has bipolar disorder (manic-depressive disorder) or has tried to commit suicide.

This medicine may cause serious allergic reactions, including anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Call your doctor right away if you have a rash, itching, hoarseness, trouble breathing, trouble swallowing, swelling of your hands, face, or mouth, or chest pain while you are using this medicine.

This medicine may cause some people to become drowsy, dizzy, lightheaded, or less alert than they are normally. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are dizzy or not alert.

Make sure your doctor knows if you are pregnant, may be pregnant, or planning to become pregnant.

Dizziness, lightheadedness, or fainting may occur, especially when you get up suddenly from a lying or sitting position. Getting up slowly may help lessen this problem.

Before having any kind of surgery (including dental surgery) or emergency treatment, tell the doctor or dentist in charge that you are taking this medicine. Taking tramadol together with medicines that are used during surgery or dental or emergency treatments may cause increased side effects.

If you think you or someone else may have taken an overdose of tramadol, get emergency help at once. Signs of an overdose include convulsions (seizures), difficult or troubled breathing, irregular, fast or slow, or shallow breathing, pale or blue lips, fingernails, or skin, pinpoint pupils of the eyes, or trouble breathing.

Do not stop suddenly taking this medicine without first checking with your doctor. Your doctor may want you to gradually reduce the amount you are using before stopping it completely. This may help prevent a possible worsening of your condition and reduce the possibility of withdrawal symptoms such as anxiety, diarrhea, headache, nausea, shivering, sweating, tremors, or trouble with sleeping.

Using too much of this medicine may cause infertility (unable to have children). Talk with your doctor before using this medicine if you plan to have children.

What are some things I need to know or do while I take ConZip?

  • Tell all of your health care providers that you take ConZip (tramadol extended-release capsules). This includes your doctors, nurses, pharmacists, and dentists.
  • Avoid driving and doing other tasks or actions that call for you to be alert until you see how this medicine affects you.
  • To lower the chance of feeling dizzy or passing out, rise slowly if you have been sitting or lying down. Be careful going up and down stairs.
  • Very bad and sometimes deadly allergic side effects have rarely happened. Talk with your doctor.
  • Do not take ConZip with other strong pain drugs or if you are using a pain patch without talking to your doctor first.
  • This medicine may raise the chance of seizures. The chance may be higher in people who have certain health problems, use certain other drugs, or drink a lot of alcohol. Talk to your doctor to see if you have a greater chance of seizures while taking this medicine.
  • If you have been taking ConZip for a long time or at high doses, it may not work as well and you may need higher doses to get the same effect. This is known as tolerance. Call your doctor if this medicine stops working well. Do not take more than ordered.
  • Do not stop taking ConZip all of a sudden without calling your doctor. You may have a greater risk of signs of withdrawal. If you need to stop this medicine, you will want to slowly stop it as ordered by your doctor.
  • This medicine may affect how much of some other drugs are in your body. If you are taking other drugs, talk with your doctor. You may need to have your blood work checked more closely while taking ConZip with your other drugs.
  • Long-term use of an opioid drug like this medicine may lead to lower sex hormone levels. This may lead to signs like change in sex ability in men, no menstrual period in women, lowered interest in sex, or fertility problems. Call your doctor if you have any of these signs.
  • Taking an opioid drug like ConZip may lead to a rare but very bad adrenal gland problem. Call your doctor right away if you have very bad dizziness or passing out, very bad upset stomach or throwing up, or if you feel less hungry, very tired, or very weak.
  • If you are 65 or older, use this medicine with care. You could have more side effects.
  • This medicine may cause harm to the unborn baby if you take it while you are pregnant. If you are pregnant or you get pregnant while taking ConZip, call your doctor right away.

Drug Interactions

Table 2 includes clinically significant drug interactions with ConZip.

Table 2: Clinically Significant Drug Interactions with ConZip
Inhibitors of CYP2D6
Clinical Impact: The concomitant use of ConZip and CYP2D6 inhibitors may result in an increase in the plasma concentration of tramadol and a decrease in the plasma concentration of M1, particularly when an inhibitor is added after a stable dose of ConZip is achieved. Since M1 is a more potent μ-opioid agonist, decreased M1 exposure could result in decreased therapeutic effects, and may result in signs and symptoms of opioid withdrawal in patients who had developed physical dependence to tramadol. Increased tramadol exposure can result in increased or prolonged therapeutic effects and increased risk for serious adverse events including seizures and serotonin syndrome.

After stopping a CYP2D6 inhibitor, as the effects of the inhibitor decline, the tramadol plasma concentration will decrease and the M1 plasma concentration will increase which could increase or prolong therapeutic effects but also increase adverse reactions related to opioid toxicity, and may cause potentially fatal respiratory depression [see Clinical Pharmacology (12.3)].
Intervention: If concomitant use of a CYP2D6 inhibitor is necessary, follow patients closely for adverse reactions including opioid withdrawal, seizures, and serotonin syndrome.

If a CYP2D6 inhibitor is discontinued, consider lowering ConZip dosage until stable drug effects are achieved. Follow patients closely for adverse events including respiratory depression and sedation.
Examples Quinidine, fluoxetine, paroxetine and bupropion
Inhibitors of CYP3A4
Clinical Impact: The concomitant use of ConZip and CYP3A4 inhibitors can increase the plasma concentration of tramadol and may result in a greater amount of metabolism via CYP2D6 and greater levels of M1. Follow patients closely for increased risk of serious adverse events including seizures and serotonin syndrome, and adverse reactions related to opioid toxicity including potentially fatal respiratory depression, particularly when an inhibitor is added after a stable dose of ConZip is achieved.

After stopping a CYP3A4 inhibitor, as the effects of the inhibitor decline, the tramadol plasma concentration will decrease [see Clinical Pharmacology (12.3)], resulting in decreased opioid efficacy and possibly signs and symptoms of opioid withdrawal in patients who had developed physical dependence to tramadol.
Intervention: If concomitant use is necessary, consider dosage reduction of ConZip until stable drug effects are achieved. Follow patients closely for seizures and serotonin syndrome, and signs of respiratory depression and sedation at frequent intervals.
If a CYP3A4 inhibitor is discontinued, consider increasing the ConZip dosage until stable drug effects are achieved and follow patients for signs and symptoms of opioid withdrawal.
Examples Macrolide antibiotics (e.g., erythromycin), azole-antifungal agents (e.g. ketoconazole), protease inhibitors (e.g., ritonavir)
CYP3A4 Inducers
Clinical Impact: The concomitant use of ConZip and CYP3A4 inducers can decrease the plasma concentration of tramadol, [see Clinical Pharmacology (12.3)], resulting in decreased efficacy or onset of a withdrawal syndrome in patients who have developed physical dependence to tramadol, [see Warnings and Precautions (5.5)].

After stopping a CYP3A4 inducer, as the effects of the inducer decline, the tramadol plasma concentration will increase [see Clinical Pharmacology (12.3)], which could increase or prolong both the therapeutic effects and adverse reactions, and may cause seizures and serotonin syndrome, and potentially fatal respiratory depression.
Intervention: If concomitant use is necessary, consider increasing the ConZip dosage until stable drug effects are achieved. Follow patients for signs of opioid withdrawal.
If a CYP3A4 inducer is discontinued, consider ConZip dosage reduction and monitor for seizures and serotonin syndrome, and signs of sedation and respiratory depression.

Patients taking carbamazepine, a CYP3A4 inducer, may have a significantly reduced analgesic effect of tramadol. Because carbamazepine increases tramadol metabolism and because of the seizure risk associated with tramadol, concomitant administration of ConZip and carbamazepine is not recommended.
Examples: Rifampin, carbamazepine, phenytoin
Benzodiazepines and Other Central Nervous System (CNS) Depressants
Clinical Impact: Due to additive pharmacologic effect, the concomitant use of benzodiazepines or other CNS depressants, including alcohol, can increase the risk of hypotension, respiratory depression, profound sedation, coma, and death.
Intervention: Reserve concomitant prescribing of these drugs for use in patients for whom alternative treatment options are inadequate. Limit dosages and durations to the minimum required. Follow patients closely for signs of respiratory depression and sedation [see Warnings and Precautions (5.6)].
Examples: Benzodiazepines and other sedatives/hypnotics, anxiolytics, tranquilizers, muscle relaxants, general anesthetics, antipsychotics, other opioids, alcohol.
Serotonergic Drugs
Clinical Impact: The concomitant use of opioids with other drugs that affect the serotonergic neurotransmitter system has resulted in serotonin syndrome.
Intervention: If concomitant use is warranted, carefully observe the patient, particularly during treatment initiation and dose adjustment. Discontinue ConZip if serotonin syndrome is suspected.
Examples: Selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants (TCAs), triptans, 5-HT3 receptor antagonists, drugs that affect the serotonin neurotransmitter system (e.g., mirtazapine, trazodone, tramadol), monoamine oxidase (MAO) inhibitors (those intended to treat psychiatric disorders and also others, such as linezolid and intravenous methylene blue).
Monoamine Oxidase Inhibitors (MAOIs)
Clinical Impact: MAOI interactions with opioids may manifest as serotonin syndrome [see Warnings and Precautions (5.8)] or opioid toxicity (e.g., respiratory depression, coma) [see Warnings and Precautions (5.2)].
Intervention: Do not use ConZip in patients taking MAOIs or within 14 days of stopping such treatment.
Examples: phenelzine, tranylcypromine, linezolid
Mixed Agonist/Antagonist and Partial Agonist Opioid Analgesics
Clinical Impact: May reduce the analgesic effect of ConZip and/or precipitate withdrawal symptoms.
Intervention: Avoid concomitant use.
Examples: butorphanol, nalbuphine, pentazocine, buprenorphine
Muscle Relaxants
Clinical Impact: Tramadol may enhance the neuromuscular blocking action of skeletal muscle relaxants and produce an increased degree of respiratory depression.
Intervention: Monitor patients for signs of respiratory depression that may be greater than otherwise expected and decrease the dosage of ConZip and/or the muscle relaxant as necessary.
Diuretics
Clinical Impact: Opioids can reduce the efficacy of diuretics by inducing the release of antidiuretic hormone.
Intervention: Monitor patients for signs of diminished diuresis and/or effects on blood pressure and increase the dosage of the diuretic as needed.
Anticholinergic Drugs
Clinical Impact: The concomitant use of anticholinergic drugs may increase risk of urinary retention and/or severe constipation, which may lead to paralytic ileus.
Intervention: Monitor patients for signs of urinary retention or reduced gastric motility when ConZip is used concomitantly with anticholinergic drugs.
Digoxin
Clinical Impact: Post-marketing surveillance of tramadol has revealed rare reports of digoxin toxicity.
Intervention: Follow patients for signs of digoxin toxicity and adjust dosage of digoxin as needed.
Warfarin
Clinical Impact: Post-marketing surveillance of tramadol has revealed rare reports of alteration of warfarin effect, including elevation of prothrombin times.
Intervention: Monitor the prothrombin time of patients on warfarin for signs of an interaction and adjust the dosage of warfarin as needed.

Overdosage

Clinical Presentation

Acute overdosage with ConZip can be manifested by respiratory depression, somnolence progressing to stupor or coma, skeletal muscle flaccidity, cold and clammy skin, constricted pupils, and, in some cases, pulmonary edema, bradycardia, QT prolongation, hypotension, partial or complete airway obstruction, atypical snoring, and death. Marked mydriasis rather than miosis may be seen with hypoxia in overdose situations. [see Clinical Pharmacology (12.2)]

Treatment of Overdose

In case of overdosage, priorities are the reestablishment of a patent and protected airway and institution of assisted or controlled ventilation, if needed. Employ other supportive measures (including oxygen and vasopressors) in the management of circulatory shock and pulmonary edema as indicated. Cardiac arrest or arrhythmias will require advanced life-support techniques.

The opioid antagonists, naloxone or nalmefene, are specific antidotes to respiratory depression resulting from opioid overdose. For clinically significant respiratory or circulatory depression secondary to tramadol overdose, administer an opioid antagonist. Opioid antagonists should not be administered in the absence of clinically significant respiratory or circulatory depression secondary to tramadol overdose.

While naloxone will reverse some, but not all, symptoms caused by overdosage with tramadol, the risk of seizures is also increased with naloxone administration. In animals, convulsions following the administration of toxic doses of ConZip could be suppressed with barbiturates or benzodiazepines but were increased with naloxone. Naloxone administration did not change the lethality of an overdose in mice. Hemodialysis is not expected to be helpful in an overdose because it removes less than 7% of the administered dose in a 4-hour dialysis period.

Because the duration of opioid reversal is expected to be less than the duration of action of tramadol in ConZip, carefully monitor the patient until spontaneous respiration is reliably reestablished. ConZip will continue to release tramadol and add to the tramadol load for 24 to 48 hours or longer following ingestion, necessitating prolonged monitoring. If the response to an opioid antagonist is suboptimal or only brief in nature, administer additional antagonist as directed by the product's prescribing information.

In an individual physically dependent on opioids, administration of the recommended usual dosage of the antagonist will precipitate an acute withdrawal syndrome. The severity of the withdrawal symptoms experienced will depend on the degree of physical dependence and the dose of the antagonist administered. If a decision is made to treat serious respiratory depression in the physically dependent patient, administration of the antagonist should be begun with care and by titration with smaller than usual doses of the antagonist.

ConZip Description

ConZip (tramadol hydrochloride) is an opioid agonist in an extended-release oral formulation. The chemical name for tramadol hydrochloride USP is (±)cis-2-[(dimethylamino)methyl]-1-(3-methoxyphenyl) cyclohexanol hydrochloride. Its structural formula is:

The molecular weight of tramadol hydrochloride USP is 299.8. It is a white, bitter, crystalline and odorless powder that is readily soluble in water and ethanol and has a pKa of 9.41. The n-octanol/water log partition coefficient (logP) is 1.35 at pH 7.

ConZip capsules contain a total dose of tramadol hydrochloride 100, 200, and 300 mg in a combination of immediate-release and extended-release components.

Dosage Immediate-release Extended-release
100 mg 25 mg 75 mg
200 mg 50 mg 150 mg
300 mg 50 mg 250 mg

ConZip capsules are white in color. Inactive ingredients include gelatin, titanium dioxide, shellac, FD & C Blue #2 aluminum lake (E132), D & C Red #7 calcium lake (E180), D & C Yellow #10 aluminum lake, lactose monohydrate 200 mesh, microcrystalline cellulose, povidone K30, corn starch, sodium starch glycolate, magnesium stearate, sucrose stearate, hypromellose, talc, polysorbate 80, Eudragit NE 30D, and simethicone emulsion.

How Supplied/Storage and Handling

ConZip (tramadol hydrochloride) capsules are supplied as opaque white hard gelatin capsules, imprinted as follows.

100 mg Capsules: White capsule imprinted with blue ink “G 252” on cap and “100” between lines on the body

Bottle of 30 capsules: NDC 68025-071-30

200 mg Capsules: White capsule imprinted with violet ink “G 253” on cap and “200” between lines on the body

Bottle of 30 capsules: NDC 68025-072-30

300 mg Capsules: White capsule imprinted with red ink “G 254” on cap and “300” between lines on the body

Bottle of 30 capsules: NDC 68025-073-30

Dispense in a tight container. Store at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature]. Keep out of reach of children.

Administrative Information

LactMed Record Number

391

Last Revision Date

20170905

Disclaimer

Information presented in this database is not meant as a substitute for professional judgment. You should consult your healthcare provider for breastfeeding advice related to your particular situation. The U.S. government does not warrant or assume any liability or responsibility for the accuracy or completeness of the information on this Site.

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