Minocycline 80mg ER Tablets
Overview
What is this medicine?
How to Use This Medicine
To get the most benefit from your medication, follow your doctor's instructions carefully. Read all the information provided with your prescription and follow the instructions closely.
Take your medication as directed by your doctor, swallowing the tablets or capsules whole without chewing or crushing them.
Drink a full glass of water with each dose.
If you're unsure whether your medication can be broken in half, consult with your doctor before doing so.
Continue taking your medication as prescribed, even if your symptoms improve.
Establish a routine by taking your medication at the same time every day.
You can take your medication with or without food, but if it causes stomach upset, take it with food.
However, do not take your medication at the same time as products containing iron or antacids with aluminum, calcium, or magnesium. Consult with your doctor or pharmacist for guidance.
Unless your doctor advises you to limit fluid intake, drink plenty of non-caffeinated liquids to stay hydrated.
Storing and Disposing of Your Medication
Store your medication at room temperature in a dry place, avoiding the bathroom.
Protect your medication from heat and light to preserve its effectiveness.
When you no longer need your medication, dispose of it properly.
Missing a Dose
If you miss a dose, take it as soon as you remember.
However, if it's close to the time for your next scheduled dose, skip the missed dose and resume your regular dosing schedule.
Do not take two doses at the same time or take extra doses to make up for a missed dose.
Lifestyle & Tips
- Take the tablet with a full glass of water to prevent esophageal irritation.
- Do not lie down for at least 30-60 minutes after taking the medication.
- Avoid excessive sun exposure and use sunscreen (SPF 30 or higher) and protective clothing, as minocycline can cause photosensitivity (increased sensitivity to sunlight).
- Avoid taking antacids, iron supplements, or calcium-containing products (including dairy) within 2-3 hours of taking minocycline, as they can interfere with absorption.
- If you are taking oral contraceptives, consider using an additional non-hormonal birth control method, as minocycline may reduce their effectiveness.
- Do not skip doses or stop taking the medication early, even if you feel better, to prevent antibiotic resistance.
Available Forms & Alternatives
Available Strengths:
- Minocycline 100mg Capsules
- Minocycline 50mg Capsules
- Minocycline 75mg Capsules
- Minocycline 100mg Capsules
- Minocycline 75mg Capsules
- Minocycline 50mg Capsules
- Minocycline 50mg Tablets
- Minocycline 100mg Tablets
- Minocycline 75mg Tablets
- Minocycline ER 135mg Tablets
- Minocycline ER 90mg Tablets
- Minocycline ER 45mg Tablets
- Minocycline 80mg ER Tablets
- Minocycline 105mg ER Tablets
- Minocycline 65mg ER Tablets
- Minocycline 115mg ER Tablets
- Minocycline 135mg ER Capsules
- Minocycline 55mg ER Tablets
Dosing & Administration
Adult Dosing
Condition-Specific Dosing:
Pediatric Dosing
Dose Adjustments
Renal Impairment:
Hepatic Impairment:
Pharmacology
Mechanism of Action
Pharmacokinetics
Absorption:
Distribution:
Elimination:
Pharmacodynamics
Safety & Warnings
Side Effects
Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you notice any of the following symptoms, contact your doctor immediately or seek emergency medical attention:
Signs of an allergic reaction, such as:
+ Rash or hives
+ Itching or red, swollen, blistered, or peeling skin with or without fever
+ Wheezing or tightness in the chest or throat
+ Difficulty breathing, swallowing, or talking
+ Unusual hoarseness or swelling of the mouth, face, lips, tongue, or throat
Signs of pancreatitis (pancreas problems), such as:
+ Severe stomach pain
+ Severe back pain
+ Severe upset stomach or vomiting
Signs of kidney problems, such as:
+ Inability to urinate
+ Changes in urine output
+ Blood in the urine
+ Sudden weight gain
Signs of lupus, such as:
+ Rash on the cheeks or other body parts
+ Easy sunburning
+ Muscle or joint pain
+ Chest pain or shortness of breath
+ Swelling in the arms or legs
Fever, chills, or sore throat
Unexplained bruising or bleeding
Feeling extremely tired or weak
Changes in hearing
Joint pain or swelling
Muscle pain or weakness
Ringing in the ears
Seizures
Shortness of breath
Chest pain
Abnormal heartbeat
Swelling
Changes in nail, skin, eye, scar, tooth, or gum color to a darker shade
Mouth irritation or sores
Burning, numbness, or tingling sensations
Redness or white patches in the mouth or throat
Rectal or genital irritation
Vaginal itching or discharge
Antibiotic-Related Side Effects
Diarrhea is a common side effect of antibiotics. However, in rare cases, a severe form of diarrhea called C. diff-associated diarrhea (CDAD) may occur, which can lead to life-threatening bowel problems. If you experience stomach pain, cramps, or loose, watery, or bloody stools, contact your doctor immediately.
Other Serious Side Effects
Liver problems: Contact your doctor right away if you notice dark urine, tiredness, decreased appetite, upset stomach or stomach pain, light-colored stools, vomiting, or yellow skin or eyes.
Raised pressure in the brain: This condition may cause headaches or eyesight problems, such as blurred vision, double vision, or loss of vision. If you experience any of these symptoms, contact your doctor immediately.
Thyroid cancer: Long-term use of this medication has been associated with an increased risk of thyroid cancer. If you notice lasting hoarseness, a neck mass, or difficulty breathing or swallowing, contact your doctor right away.
Severe skin reactions: These reactions, including Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN), can be life-threatening. Seek medical help immediately if you experience red, swollen, blistered, or peeling skin; red or irritated eyes; sores in your mouth, throat, nose, eyes, genitals, or skin; fever; chills; body aches; shortness of breath; or swollen glands.
Common Side Effects
Many people taking this medication may experience mild or no side effects. However, if you notice any of the following symptoms, contact your doctor or seek medical attention if they bother you or do not go away:
Diarrhea
Upset stomach or vomiting
Decreased appetite
Dizziness, drowsiness, tiredness, or weakness
Reporting Side Effects
If you have questions about side effects or experience any symptoms that concern you, contact your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
Seek Immediate Medical Attention If You Experience:
- Severe headache, blurred vision, double vision, or vision loss (signs of pseudotumor cerebri/benign intracranial hypertension).
- Severe skin rash, fever, swollen lymph nodes, or swelling of the face (signs of Drug Reaction with Eosinophilia and Systemic Symptoms - DRESS syndrome).
- Yellowing of the skin or eyes, dark urine, severe stomach pain, or persistent nausea/vomiting (signs of liver problems).
- Severe dizziness or vertigo.
- New or worsening joint pain or swelling (signs of drug-induced lupus-like syndrome).
- Unusual bleeding or bruising.
- Severe diarrhea that is watery or bloody (may be a sign of C. difficile infection).
Before Using This Medicine
It is essential to inform your doctor about the following:
Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Be sure to describe the allergic reaction you experienced.
If you are currently taking any of the following medications: Acitretin, isotretinoin, or a penicillin.
If you are pregnant or think you might be pregnant. Do not take this medication if you are pregnant.
If you are trying to conceive or father a child.
* If you are breastfeeding or plan to breastfeed. You may need to avoid breastfeeding while taking this medication.
This list is not exhaustive, and it is crucial to discuss all your medications (including prescription, over-the-counter, natural products, and vitamins) and health issues with your doctor and pharmacist. They will help determine if it is safe to take this medication with your other medications and health conditions. Never start, stop, or change the dosage of any medication without first consulting your doctor.
Precautions & Cautions
Regular blood tests will be necessary, as directed by your doctor. Be sure to discuss any concerns or questions with your doctor. Additionally, this medication may interfere with certain laboratory tests, so it is crucial to notify all healthcare providers and laboratory personnel that you are taking this drug.
Do not exceed the prescribed duration of treatment, as this may increase the risk of a secondary infection. When taking this medication, be cautious when exposed to sunlight, as it may increase your susceptibility to sunburn. If you experience unusual sunburn or sensitivity, inform your doctor promptly.
In children under 8 years old, this medication may cause permanent tooth discoloration, resulting in a yellow-gray-brown color. If this occurs, the discoloration will not resolve. Discuss this risk with your doctor. This medication is not approved for use in children under 12 years old, so it is essential to consult with your doctor. Furthermore, do not administer this medication to children under 8 years of age.
Although less common, tooth discoloration has also been reported in adults, which typically resolves after discontinuing the medication and undergoing dental cleaning. Consult your doctor if you have concerns about tooth discoloration.
When taking this medication, birth control pills and other hormone-based contraceptives may be less effective. To prevent pregnancy, use an additional form of birth control, such as condoms, in conjunction with your regular birth control method.
If you are pregnant or become pregnant while taking this medication, it is crucial to contact your doctor immediately, as this drug may pose a risk to the unborn baby.
Overdose Information
Overdose Symptoms:
- Nausea
- Vomiting
- Diarrhea
- Dizziness
- Lightheadedness
What to Do:
In case of overdose, seek immediate medical attention or call a Poison Control Center (1-800-222-1222). Treatment is generally supportive, including gastric lavage if appropriate, and symptomatic management.
Drug Interactions
Contraindicated Interactions
- Isotretinoin (and other oral retinoids) due to increased risk of pseudotumor cerebri (benign intracranial hypertension).
Major Interactions
- Anticoagulants (e.g., Warfarin): Tetracyclines can depress plasma prothrombin activity, requiring dosage adjustment of anticoagulants.
- Penicillins: Bacteriostatic drugs like minocycline may interfere with the bactericidal action of penicillins; avoid concomitant use.
Moderate Interactions
- Antacids containing aluminum, calcium, or magnesium, and iron preparations, bismuth subsalicylate, zinc salts: Can form insoluble chelates with minocycline, significantly reducing its absorption. Administer minocycline 2-3 hours before or after these agents.
- Oral Contraceptives: May reduce the effectiveness of oral contraceptives, leading to breakthrough bleeding or unintended pregnancy (though evidence is controversial, caution is advised).
- Ergot alkaloids: Theoretical increased risk of ergotism.
- Methoxyflurane: Concurrent use with tetracyclines has been reported to result in fatal renal toxicity.
Monitoring
Baseline Monitoring
Rationale: To establish baseline and identify pre-existing hepatic impairment, especially for long-term therapy.
Timing: Prior to initiating therapy, particularly if prolonged use is anticipated or patient has hepatic impairment.
Rationale: To establish baseline and identify pre-existing renal impairment, though minocycline is primarily non-renally eliminated.
Timing: Prior to initiating therapy, particularly if prolonged use is anticipated or patient has renal impairment.
Routine Monitoring
Frequency: Periodically (e.g., every 3-6 months) for patients on long-term therapy (e.g., for acne).
Target: Within normal limits
Action Threshold: Significant elevation (e.g., >3x ULN) may warrant dose reduction or discontinuation.
Frequency: Periodically for patients on long-term therapy, especially if underlying renal issues.
Target: Within normal limits
Action Threshold: Significant changes may warrant re-evaluation of therapy.
Frequency: Ongoing symptom monitoring
Target: Not applicable
Action Threshold: New or worsening severe headache, blurred vision, diplopia, papilledema, nausea, vomiting; requires immediate medical evaluation and discontinuation.
Symptom Monitoring
- Photosensitivity (severe sunburn-like reaction)
- Dizziness, lightheadedness, vertigo (especially at initiation or with dose changes)
- Gastrointestinal upset (nausea, vomiting, diarrhea)
- Skin discoloration (blue-gray pigmentation, particularly with long-term use)
- Severe headache, blurred vision, diplopia (signs of pseudotumor cerebri)
- Rash, fever, lymphadenopathy, eosinophilia (signs of DRESS syndrome)
- Joint pain, swelling (drug-induced lupus-like syndrome)
- Yellowing of skin or eyes, dark urine (signs of liver problems)
Special Patient Groups
Pregnancy
Minocycline is classified as Pregnancy Category D. It should not be used during pregnancy due to potential harm to the fetus.
Trimester-Specific Risks:
Lactation
Minocycline is excreted into breast milk. Use is generally not recommended during breastfeeding due to the potential for permanent tooth discoloration and inhibition of bone growth in the nursing infant. The American Academy of Pediatrics considers tetracyclines to be compatible with breastfeeding with caution.
Pediatric Use
Contraindicated in children under 8 years of age due to the risk of permanent tooth discoloration (yellow-gray-brown) and inhibition of bone growth. Use in children 8 years and older should be carefully weighed against these risks.
Geriatric Use
No specific dose adjustments are generally required based solely on age. However, elderly patients may have reduced renal or hepatic function, which should be considered. Monitor for adverse effects, particularly dizziness and GI upset.
Clinical Information
Clinical Pearls
- Minocycline is known for causing vestibular side effects (dizziness, vertigo, ataxia), which are more common with higher doses and in females. These usually resolve with continued therapy or dose reduction.
- Long-term use of minocycline can lead to blue-gray skin, nail, and scleral discoloration, which may be permanent.
- Minocycline has anti-inflammatory properties in addition to its antibacterial effects, which contributes to its efficacy in acne treatment.
- Patients should be advised to report any new or worsening severe headache or vision changes immediately, as these can be signs of pseudotumor cerebri.
- Extended-release formulations are designed to reduce the incidence of GI upset and vestibular side effects compared to immediate-release formulations, by providing more consistent drug levels.
Alternative Therapies
- Other oral tetracyclines (e.g., Doxycycline, Sarecycline) for acne or other infections.
- Macrolide antibiotics (e.g., Azithromycin, Erythromycin) for certain bacterial infections.
- Topical antibiotics (e.g., Clindamycin, Erythromycin) for acne.
- Topical retinoids (e.g., Tretinoin, Adapalene, Tazarotene) for acne.
- Oral retinoids (e.g., Isotretinoin) for severe acne (contraindicated with minocycline).
- Benzoyl peroxide for acne.
- Oral contraceptives for hormonal acne.