Minocycline 135mg ER Capsules
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. Continue taking your medication as directed, even if your symptoms improve.
To establish a routine, take your medication at the same time every day. You can take it with or without food, but if it causes stomach upset, take it with food to help minimize discomfort. However, do not take your medication at the same time as products that contain iron or antacids that have aluminum, calcium, or magnesium. If you have questions, consult your doctor or pharmacist.
Stay hydrated by drinking plenty of non-caffeinated fluids, unless your doctor advises you to limit your fluid intake. When taking your medication, swallow the tablet whole with a full glass of water. Do not chew, break, or crush the tablet.
Storing and Disposing of Your Medication
Keep your medication at room temperature in a dry place, away from heat and light. Avoid storing it in a bathroom. 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 dose, skip the missed dose and resume your regular schedule. Do not take two doses at the same time or take extra doses to make up for the missed one.
Lifestyle & Tips
- Take exactly as prescribed, usually once daily. Do not crush, chew, or break the capsule.
- Take with a full glass of water to prevent esophageal irritation.
- Avoid lying down for at least 30 minutes after taking the medication.
- Avoid excessive sun exposure and use sunscreen (SPF 30+) and protective clothing, as minocycline can cause severe sunburn (photosensitivity).
- Avoid taking antacids, iron supplements, or dairy products within 2-3 hours before or after 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 (though this is controversial).
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
+ 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 (darkening)
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
Diarrhea (common with antibiotics, but rarely, a severe form called C. diff-associated diarrhea (CDAD) may occur, which can lead to a life-threatening bowel problem)
Liver problems, such as:
+ Dark urine
+ Fatigue
+ Decreased appetite
+ Upset stomach or stomach pain
+ Light-colored stools
+ Vomiting
+ Yellow skin or eyes
Raised pressure in the brain, which may cause:
+ Headache
+ Vision problems (blurred vision, double vision, or loss of vision)
Thyroid cancer (reported with long-term use), which may cause:
+ Lasting hoarseness
+ Neck mass
+ Difficulty breathing or swallowing
Severe skin reactions, such as:
+ Stevens-Johnson syndrome (SJS)
+ Toxic epidermal necrolysis (TEN)
+ Other serious reactions, which may affect body organs and can be life-threatening
+ Signs include:
- 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
Other Possible Side Effects
Most people do not experience side effects or only have mild side effects. However, if you notice any of the following symptoms, contact your doctor or seek medical attention:
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 side effects that bother you or do not go away, 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 (could be signs of pseudotumor cerebri)
- Severe dizziness or vertigo
- Yellowing of skin or eyes (jaundice), dark urine, persistent nausea/vomiting, or severe stomach pain (signs of liver problems)
- Severe skin rash, fever, swollen lymph nodes, or swelling of the face (signs of a severe allergic reaction or DRESS syndrome)
- Unusual bleeding or bruising
- Severe diarrhea that is watery or bloody (could be C. difficile infection)
- New or worsening joint pain or swelling
- Blue-gray discoloration of skin, nails, or gums (long-term use)
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. 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 (prescription, over-the-counter, natural products, and vitamins) and health issues 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. Never 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 you to sunburn more easily. If you experience increased sensitivity to the sun, 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 any concerns 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 rare, 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 any 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, 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 harm the unborn baby.
Overdose Information
Overdose Symptoms:
- Nausea
- Vomiting
- Diarrhea
- Dizziness
What to Do:
Call 1-800-222-1222 (Poison Control) immediately or seek emergency medical attention. Treatment is generally supportive.
Drug Interactions
Major Interactions
- Isotretinoin (increased risk of pseudotumor cerebri)
- Oral Retinoids (e.g., Acitretin, Bexarotene) (increased risk of pseudotumor cerebri)
- Methoxyflurane (increased risk of nephrotoxicity)
Moderate Interactions
- Antacids containing aluminum, calcium, or magnesium (decreased minocycline absorption)
- Iron preparations (decreased minocycline absorption)
- Bismuth subsalicylate (decreased minocycline absorption)
- Oral contraceptives (potential for decreased efficacy of oral contraceptives, though evidence is limited and controversial)
- Warfarin and other anticoagulants (may potentiate anticoagulant effect)
- Penicillins (tetracyclines may interfere with the bactericidal action of penicillin)
Monitoring
Baseline Monitoring
Rationale: To establish baseline and identify pre-existing hepatic impairment, as minocycline can cause hepatotoxicity.
Timing: Prior to initiation, especially in patients with known or suspected hepatic impairment.
Rationale: To establish baseline and identify pre-existing renal impairment, as minocycline is partially renally excreted and can accumulate.
Timing: Prior to initiation, especially in patients with known or suspected renal impairment.
Routine Monitoring
Frequency: Monthly or as clinically indicated
Target: Improvement in lesion count and overall acne severity
Action Threshold: Lack of improvement after 6-8 weeks may warrant re-evaluation of treatment.
Frequency: Routinely during treatment
Target: Absence of symptoms
Action Threshold: If symptoms occur, discontinue minocycline and refer for neurological evaluation.
Frequency: Routinely during treatment
Target: Absence of symptoms
Action Threshold: If symptoms occur, discontinue minocycline and perform LFTs.
Frequency: Routinely during treatment
Target: Absence of symptoms (e.g., fever, rash, lymphadenopathy, organ involvement)
Action Threshold: If suspected, discontinue minocycline immediately and manage symptomatically.
Symptom Monitoring
- Headache
- Blurred vision
- Dizziness
- Vertigo
- Nausea
- Vomiting
- Diarrhea
- Photosensitivity (sunburn-like reaction)
- Skin discoloration (blue-gray pigmentation)
- Tooth discoloration (in children)
- Joint pain/swelling
- Fever
- Rash
- Sore throat
- Unusual bleeding or bruising
Special Patient Groups
Pregnancy
Contraindicated in pregnancy (Category D). Tetracyclines can cause permanent tooth discoloration (yellow-gray-brown) and enamel hypoplasia in the fetus, and reversible inhibition of bone growth. Use only if the potential benefit justifies the potential risk to the fetus.
Trimester-Specific Risks:
Lactation
Use with caution (L3). Minocycline is excreted into breast milk. While absorption by the infant 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. Monitor infant for diarrhea, candidiasis, and tooth discoloration.
Pediatric Use
Contraindicated in children under 8 years of age due to the risk of permanent tooth discoloration and enamel hypoplasia. Use in adolescents (12 years and older) for acne is generally accepted, but careful consideration of risks vs. benefits is necessary.
Geriatric Use
No specific dose adjustment is generally needed based on age alone. However, elderly patients may have age-related decreases in renal or hepatic function, which may warrant dose adjustment or closer monitoring. Increased susceptibility to adverse effects like dizziness/vertigo may occur.
Clinical Information
Clinical Pearls
- Minocycline ER is specifically formulated for once-daily dosing and is primarily indicated for acne vulgaris.
- Counsel patients extensively on photosensitivity and the importance of sun protection.
- Warn patients about potential for dizziness/vertigo, especially at the start of therapy.
- Educate patients about the risk of permanent tooth discoloration if used in children under 8 years.
- Be aware of the rare but serious adverse effects like pseudotumor cerebri, DRESS syndrome, and drug-induced lupus-like syndrome.
- Advise patients to take with plenty of water and remain upright to prevent esophageal irritation/ulceration.
- Monitor for signs of C. difficile-associated diarrhea (CDAD) if severe, persistent diarrhea occurs.
Alternative Therapies
- Other oral tetracyclines (e.g., Doxycycline, Tetracycline) for acne or infections
- Topical retinoids (e.g., Tretinoin, Adapalene, Tazarotene) for acne
- Topical antibiotics (e.g., Clindamycin, Erythromycin) for acne
- Benzoyl peroxide for acne
- Oral isotretinoin for severe nodular acne
- Other systemic antibiotics (e.g., Macrolides, Cephalosporins) for bacterial infections (not typically for acne)