Minocycline 115mg 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 are unsure whether your medication can be broken in half, consult with your doctor before doing so. Some products may be broken in half, but it's essential to check first.
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. However, if it causes stomach upset, take it with food to help minimize this side effect.
Avoid taking products that contain iron or antacids with aluminum, calcium, or magnesium at the same time as your medication. If you have questions, consult with your doctor or pharmacist.
Unless your doctor advises you to limit your 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, away from the bathroom.
Protect your medication from heat and light to preserve its effectiveness.
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'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 with a full glass of water to prevent esophageal irritation.
- Do not lie down for at least 30 minutes after taking to prevent esophageal irritation.
- Avoid excessive sun exposure and use sunscreen/protective clothing, as minocycline can cause photosensitivity (severe sunburn).
- Avoid taking antacids, iron supplements, calcium supplements, or laxatives containing magnesium within 2-3 hours of taking minocycline, as they can reduce its absorption.
- If you are taking oral contraceptives, use an additional non-hormonal birth control method while on minocycline and for 7 days after, as it may reduce the effectiveness of birth control pills.
- Do not share this medication with others, even if they have similar symptoms.
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
+ Hives
+ Itching
+ Red, swollen, blistered, or peeling skin (with or without fever)
+ Wheezing
+ Tightness in the chest or throat
+ Trouble breathing, swallowing, or talking
+ Unusual hoarseness
+ Swelling of the mouth, face, lips, tongue, or throat
Signs of pancreatitis (pancreas problem), such as:
+ Severe stomach pain
+ Severe back pain
+ Severe upset stomach or vomiting
Signs of kidney problems, such as:
+ Inability to pass urine
+ 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 sunburn
+ 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 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-Related Side Effects
Diarrhea is a common side effect of antibiotics. However, a severe form called C. diff-associated diarrhea (CDAD) may occur, which can lead to life-threatening bowel problems. If you experience:
Stomach pain
Cramps
Loose, watery, or bloody stools
Contact your doctor immediately. Do not treat diarrhea without consulting your doctor.
Other Serious Side Effects
Liver problems: Contact your doctor if you notice dark urine, tiredness, decreased appetite, upset stomach, stomach pain, light-colored stools, vomiting, or yellow skin and eyes.
Raised pressure in the brain: If you experience headaches or eyesight problems, such as blurred vision, double vision, or loss of vision, seek medical attention immediately.
Thyroid cancer: If you notice lasting hoarseness, a neck mass, or trouble breathing or swallowing, contact your doctor.
Severe skin reactions: Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and other serious reactions can occur. Seek medical help if you experience:
+ 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
+ Swollen glands
Common Side Effects
Many people experience no side effects or only minor side effects. However, if you notice any of the following, contact your doctor:
Diarrhea
Upset stomach or vomiting
Decreased appetite
Dizziness
Drowsiness
Fatigue
Weakness
Reporting Side Effects
If you have questions about side effects or experience any unusual symptoms, 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, or vision changes (signs of pseudotumor cerebri)
- Severe dizziness or vertigo
- Yellowing of the skin or eyes, dark urine, pale stools, persistent nausea/vomiting (signs of liver problems)
- Severe skin rash, blistering, peeling skin, or swelling of the face/throat (signs of severe allergic reaction)
- Unusual bleeding or bruising
- Persistent diarrhea, especially if watery or bloody (signs of C. difficile infection)
- Joint pain, swelling, or stiffness (signs of drug-induced lupus-like syndrome)
- Blue-gray discoloration of 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 signs and symptoms 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. Note that this medication should not be taken during pregnancy.
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. 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 increase your susceptibility to sunburn. If you experience easy sunburning while taking this drug, inform your doctor.
In children under 8 years old, this medication may cause a permanent change in tooth color, resulting in a yellow-gray-brown discoloration. If this occurs, the change will be irreversible. 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.
Children under 8 years old should not be given this medication. Although less common, tooth discoloration has also been reported in adults, which typically resolves after stopping the medication and undergoing dental cleaning. Consult your doctor if you have concerns.
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, while taking this drug.
If you are pregnant or become pregnant while taking this medication, it is crucial to contact your doctor immediately, as this drug 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 symptomatic and supportive. Gastric lavage may be indicated if ingestion is recent. Hemodialysis is not effective in removing minocycline.
Drug Interactions
Contraindicated Interactions
- Isotretinoin (increased risk of pseudotumor cerebri)
- Other retinoids (e.g., acitretin, tretinoin, adapalene, tazarotene) (increased risk of pseudotumor cerebri)
Major Interactions
- Anticoagulants (e.g., warfarin) - may potentiate anticoagulant effect
- Penicillins - may interfere with bactericidal action of penicillin
- Ergot alkaloids - theoretical increased risk of ergotism
Moderate Interactions
- Antacids (containing aluminum, calcium, magnesium) - decreased minocycline absorption (separate administration by 2-3 hours)
- Iron preparations - decreased minocycline absorption (separate administration by 2-3 hours)
- Oral contraceptives - may decrease efficacy of oral contraceptives (advise backup method)
- Bismuth subsalicylate - decreased minocycline absorption
- Zinc supplements - decreased minocycline absorption (separate administration by 2-3 hours)
Monitoring
Baseline Monitoring
Rationale: To establish baseline and identify pre-existing hepatic impairment, especially if long-term therapy is anticipated.
Timing: Prior to initiation of therapy, particularly for prolonged use.
Rationale: To establish baseline and identify pre-existing renal impairment, as minocycline is partially renally excreted.
Timing: Prior to initiation of therapy, particularly for prolonged use.
Routine Monitoring
Frequency: Periodically, especially during prolonged therapy (e.g., >6 months)
Target: Within normal limits
Action Threshold: Significant elevation (e.g., >3x ULN) warrants discontinuation and investigation.
Frequency: Periodically, especially during prolonged therapy or in patients with pre-existing renal impairment
Target: Within normal limits
Action Threshold: Significant elevation warrants dose adjustment or discontinuation.
Frequency: Periodically, especially during prolonged therapy
Target: Within normal limits
Action Threshold: Significant abnormalities (e.g., neutropenia, thrombocytopenia) warrant investigation and potential discontinuation.
Symptom Monitoring
- Headache (especially severe, persistent, or worsening)
- Blurred vision or vision changes
- Dizziness or lightheadedness
- Nausea, vomiting, diarrhea
- Photosensitivity (severe sunburn-like reaction)
- Skin discoloration (blue-gray pigmentation)
- Tooth discoloration (in developing teeth)
- Joint pain or swelling
- Signs of allergic reaction (rash, itching, swelling, difficulty breathing)
- Signs of liver injury (yellowing of skin/eyes, dark urine, persistent nausea/vomiting)
Special Patient Groups
Pregnancy
Contraindicated during pregnancy. Minocycline can cause permanent tooth discoloration (yellow-gray-brown) and enamel hypoplasia in the fetus if used during tooth development (second and third trimesters). It can also cause reversible inhibition of bone growth.
Trimester-Specific Risks:
Lactation
Minocycline is excreted into breast milk. Due to the potential for serious adverse reactions in the breastfed infant, including permanent tooth discoloration and inhibition of bone growth, use is generally not recommended during breastfeeding. A decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
Pediatric Use
Contraindicated in children under 8 years of age due to the risk of permanent tooth discoloration (yellow-gray-brown) and enamel hypoplasia. Use in older children and adolescents for approved indications (e.g., acne) should be carefully considered, weighing benefits against risks.
Geriatric Use
No specific dose adjustment is generally required based on age alone. However, elderly patients are more likely to have decreased renal or hepatic function, which may necessitate dose adjustments or closer monitoring. Monitor for adverse effects, particularly dizziness and gastrointestinal upset.
Clinical Information
Clinical Pearls
- Minocycline ER is often preferred for acne due to its once-daily dosing and potentially lower incidence of vestibular side effects compared to immediate-release minocycline.
- Counsel patients extensively on photosensitivity and the importance of sun protection.
- Warn patients about potential for dizziness, especially when initiating therapy or changing positions.
- Educate patients about the rare but serious side effects like pseudotumor cerebri and drug-induced lupus-like syndrome.
- Advise patients that skin, nail, and tooth discoloration can occur with long-term use, which may be permanent.
- Ensure patients understand the importance of separating minocycline from antacids, iron, and calcium supplements.
Alternative Therapies
- Other oral tetracyclines (e.g., doxycycline, tetracycline)
- Other oral antibiotics for acne (e.g., azithromycin, trimethoprim/sulfamethoxazole, clindamycin)
- Topical antibiotics (e.g., clindamycin, erythromycin)
- Topical retinoids (e.g., tretinoin, adapalene, tazarotene)
- Benzoyl peroxide
- Oral isotretinoin (for severe recalcitrant nodular acne)
- Hormonal therapies (e.g., spironolactone, oral contraceptives for acne in females)