Minocycline 105mg 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 whole without chewing or crushing them.
Drink a full glass of water with each dose.
If you have been instructed to break your tablets in half, make sure you are using a product that can be broken in half. If you are unsure, consult your doctor.
Continue taking your medication as prescribed, even if your symptoms improve.
Take your medication at the same time every day to establish a routine.
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 your doctor or pharmacist for guidance.
Drink plenty of non-caffeinated fluids, unless your doctor advises you to limit your fluid intake.
Storing and Disposing of Your Medication
Store your medication at room temperature in a dry place, away from the bathroom.
Protect your medication from heat and light.
When you no longer need your medication, dispose of it properly.
What to Do If You Miss a Dose
If you miss a dose, take it as soon as you remember.
However, if it is close to the time for your next 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 whole with a full glass of water. Do not crush, chew, or break it.
- You can take it with or without food, but always take it the same way each day.
- Avoid lying down for at least 30 minutes after taking the dose to prevent irritation of the esophagus.
- Avoid excessive sun exposure or artificial UV light (tanning beds) while taking this medication, as it can cause severe sunburn (photosensitivity). Use sunscreen and wear protective clothing.
- Do not take antacids, iron supplements, calcium supplements, or laxatives containing magnesium within 2 hours before or after taking minocycline, as they can interfere with its absorption.
- If you are taking oral contraceptives, use an additional non-hormonal method of birth control (e.g., condoms) while on minocycline and for at least 7 days after stopping, as minocycline may reduce the effectiveness of birth control pills.
- Do not give this medication to children under 8 years of age due to the risk of permanent tooth discoloration and effects on bone growth.
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: rash, hives, itching, red, swollen, blistered, or peeling skin (with or without fever), wheezing, tightness in the chest or throat, difficulty breathing, swallowing, or talking, unusual hoarseness, or swelling of the mouth, face, lips, tongue, or throat.
Pancreatitis symptoms: severe stomach pain, severe back pain, or severe nausea and vomiting.
Kidney problems: inability to urinate, changes in urine output, blood in the urine, or sudden weight gain.
Lupus symptoms: rash on the cheeks or other body parts, easy sunburn, muscle or joint pain, chest pain or shortness of breath, or swelling in the arms or legs.
Fever, chills, or sore throat.
Unexplained bruising or bleeding, or 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.
Darkening of the color of nails, skin, eyes, scars, teeth, or gums.
Mouth irritation or mouth sores.
Burning, numbness, or tingling sensations.
Redness or white patches in the mouth or throat.
Rectal or genital irritation.
Vaginal itching or discharge.
Antibiotic-Associated Diarrhea
Diarrhea is a common side effect of antibiotics. However, in rare cases, a severe form of diarrhea called Clostridioides difficile-associated diarrhea (CDAD) may occur. This condition can lead to life-threatening bowel problems. If you experience stomach pain, cramps, or loose, watery, or bloody stools, contact your doctor immediately. Do not treat diarrhea without consulting your doctor first.
Liver Problems
Liver damage has been reported with this medication, and in some cases, it has been fatal. If you notice any signs of liver problems, such as dark urine, fatigue, decreased appetite, nausea, stomach pain, light-colored stools, vomiting, or yellow skin and eyes, contact your doctor right away.
Raised Brain Pressure
This medication can cause increased pressure in the brain, which usually resolves after stopping the medication. However, in some cases, vision loss may occur and may be permanent. If you experience headaches or vision problems, such as blurred vision, double vision, or loss of vision, contact your doctor immediately.
Thyroid Cancer
There have been reports of thyroid cancer associated with long-term use of this medication. If you notice persistent hoarseness, a neck mass, or difficulty breathing or swallowing, contact your doctor right away.
Severe Skin Reactions
This medication can cause severe skin reactions, including Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and other serious conditions. These reactions can be life-threatening and may affect other organs. If you experience any of the following symptoms, seek medical help immediately: red, swollen, blistered, or peeling skin; red or irritated eyes; sores in the mouth, throat, nose, eyes, genitals, or skin; fever; chills; body aches; shortness of breath; or swollen glands.
Other Side Effects
Most people do not experience severe side effects, and many have only minor or no side effects at all. However, if you notice any of the following side effects, contact your doctor or seek medical attention if they bother you or do not go away:
Diarrhea, nausea, or vomiting.
Decreased appetite.
Dizziness, drowsiness, fatigue, or weakness.
Reporting Side Effects
If you have questions about side effects or want to report any side effects, contact your doctor or the FDA at 1-800-332-1088 or https://www.fda.gov/medwatch.
Seek Immediate Medical Attention If You Experience:
- Severe headache, especially if accompanied by blurred vision, double vision, or vision loss (signs of pseudotumor cerebri)
- Yellowing of the skin or eyes (jaundice), dark urine, or severe stomach pain (signs of liver problems)
- Unusual tiredness or weakness, easy bruising or bleeding (signs of blood problems)
- Severe skin rash, blistering, peeling skin, or swelling of the face/throat (signs of severe allergic reaction)
- Joint pain, muscle aches, or fever (signs of drug-induced lupus-like syndrome)
- Dizziness or lightheadedness, especially when standing up
- Blue-gray discoloration of the skin, nails, or gums
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 or have taken any of the following medications: Acitretin, isotretinoin, or a penicillin.
If you are pregnant or think you may be pregnant. Note that this medication is not recommended during pregnancy.
If you are planning to become pregnant 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 and over-the-counter drugs, natural products, and vitamins, with your doctor and pharmacist. They will help you determine if it is safe to take this medication with your other medications and health conditions. Do not start, stop, or change the dose 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 second infection. When taking this medication, be cautious when exposed to sunlight, as it may cause increased sensitivity to sunburn. If you experience easy sunburning while on this medication, inform your doctor.
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 fade. Discuss this risk with your doctor. This medication is not approved for use in children under 12 years old, so consult with your doctor to determine the best course of treatment.
Children under 8 years old should not be given this medication. Although rare, tooth discoloration has also been reported in adults, which typically reverses after stopping 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 a condom. If you are pregnant or become pregnant while taking this medication, contact your doctor immediately, as it may harm 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 supportive and symptomatic. Gastric lavage may be indicated.
Drug Interactions
Contraindicated Interactions
- Isotretinoin (increased risk of pseudotumor cerebri)
- Methoxyflurane (fatal renal toxicity)
Major Interactions
- Anticoagulants (e.g., warfarin - potentiates anticoagulant effect)
- Penicillins (may interfere with bactericidal action of penicillin)
- Oral contraceptives (may reduce efficacy of oral contraceptives, leading to breakthrough bleeding or pregnancy)
- Antacids containing aluminum, calcium, or magnesium (decreased minocycline absorption)
- Iron preparations (decreased minocycline absorption)
- Bismuth subsalicylate (decreased minocycline absorption)
Moderate Interactions
- Ergot alkaloids (theoretical increased risk of ergotism)
- Digoxin (may increase digoxin levels)
- Typhoid vaccine, live (tetracyclines may inactivate the vaccine)
Minor Interactions
- Sucralfate (decreased minocycline absorption)
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, as minocycline is partially renally excreted.
Timing: Prior to initiating therapy, particularly if prolonged use is anticipated or patient has renal impairment.
Routine Monitoring
Frequency: Periodically for long-term therapy (e.g., >6 months)
Target: Within normal limits
Action Threshold: Significant elevation (e.g., >3x ULN) warrants discontinuation or dose adjustment.
Frequency: Periodically for long-term therapy or in patients with renal impairment
Target: Within normal limits or stable for patient
Action Threshold: Significant decline in function warrants dose adjustment or discontinuation.
Frequency: Ongoing symptom monitoring
Target: N/A
Action Threshold: New or worsening headache, blurred vision, diplopia, papilledema require immediate evaluation and discontinuation.
Frequency: Ongoing visual inspection
Target: N/A
Action Threshold: Development of blue-gray skin, nail, or mucosal discoloration warrants consideration of discontinuation.
Symptom Monitoring
- Headache (especially severe or persistent)
- Blurred vision or other visual disturbances (e.g., diplopia, loss of vision)
- Dizziness or lightheadedness
- Nausea, vomiting, diarrhea
- Photosensitivity (severe sunburn-like reaction)
- Skin rash or hives
- Yellowing of skin or eyes (jaundice)
- Darkening of skin, nails, or gums (hyperpigmentation)
- Joint pain or swelling (drug-induced lupus-like syndrome)
Special Patient Groups
Pregnancy
Contraindicated during pregnancy. Minocycline can cause permanent discoloration of teeth (yellow-gray-brown) and reversible inhibition of bone growth in the fetus. It should only be used if the potential benefit justifies the potential risk to the fetus.
Trimester-Specific Risks:
Lactation
Use with caution. Minocycline is excreted into breast milk. While the amount is generally low, there is a theoretical risk of tooth discoloration and inhibition of bone growth in the nursing infant. The American Academy of Pediatrics considers tetracyclines 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 reversible inhibition of bone growth. Use in children 8 years and older for acne should be carefully considered and dosed appropriately.
Geriatric Use
No specific dose adjustment is generally required based on age alone. However, elderly patients are more likely to have age-related decreases in renal or hepatic function, which may necessitate dose adjustments or closer monitoring for adverse effects.
Clinical Information
Clinical Pearls
- Minocycline ER is specifically formulated for once-daily dosing and is often preferred for acne due to its anti-inflammatory properties in addition to its antibacterial action.
- Counsel patients extensively on photosensitivity and the importance of sun protection.
- Warn patients about potential dizziness, especially at the start of therapy, and advise caution with driving or operating machinery.
- Educate patients about the rare but serious risk of pseudotumor cerebri (benign intracranial hypertension) and to report any severe headaches or vision changes immediately.
- Advise patients that skin, nail, and gum discoloration can occur with long-term use, which may be permanent.
- Ensure patients understand the interaction with antacids, iron, and calcium, and the need to separate administration times.
Alternative Therapies
- Other oral tetracyclines (e.g., doxycycline, sarecycline)
- Other oral antibiotics for acne (e.g., azithromycin, erythromycin, trimethoprim/sulfamethoxazole)
- Topical retinoids (e.g., tretinoin, adapalene, tazarotene)
- Topical antibiotics (e.g., clindamycin, erythromycin)
- Benzoyl peroxide
- Oral retinoids (e.g., isotretinoin for severe acne)
- Hormonal therapies (e.g., oral contraceptives, spironolactone for hormonal acne)