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Minocycline Hydrochloride



About Minocycline Hydrochloride

Dynacin Minocycline HCI 50 mg is used to treat a wide variety of infections. Minocycline Hydrochloride capsules 100mg may also be used along with other medications to treat severe acne. Dynacin 100mg belongs to a class of drugs known as tetracycline antibiotics. Dynacin generic works by stopping the growth of bacteria.

This antibiotic treats only bacterial infections. It will not work for viral infections (such as common cold, flu). Using any antibiotic when it is not needed can cause it to not work for future infections.

How to use

Read the Patient Information Leaflet if available from your pharmacist before you start taking Dynacin Minocycline HCI 50 mg and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

  • Minocycline Hydrochloride Capsules 100mg is best taken on an empty stomach.
  • Take Dynacin 100mg by mouth as directed by your doctor.
  • Usually every 12 hours, at least 1 hour before or 2 hours after a meal.
  • Take this medication with a full glass of water (8 ounces/240 milliliters) unless your doctor directs you otherwise.
  • If a stomach upset occurs, taking it with food or milk may help.
  • However, minocycline may not work as well if you take it with food or milk, so ask your doctor or pharmacist if you may take it that way.
  • If you are taking the capsules, swallow them whole.
  • Do not lie down for at least 10 minutes after taking Dynacin 100mg.
  • For this reason, do not take it right before bedtime.

Take Dynacin 100mg 2 to 3 hours before or after taking any products containing aluminum, calcium, iron, magnesium, or zinc. Some examples include antacids, didanosine solution, quinapril, vitamins/minerals, dairy products (such as milk, yogurt), and calcium-enriched juice. These products bind with minocycline, preventing your body from fully absorbing the drug.

The dosage and length of treatment are based on your medical condition and response to treatment.

For the best effect, take this antibiotic at evenly spaced times. To help you remember, take Dynacin Minocycline HCI 50 mg at the same time every day.

Continue to take Dynacin generic until the full prescribed amount is finished, even if symptoms disappear after a few days. Stopping the medication too early may result in a return of the infection.

Tell your doctor if your condition lasts or gets worse.

Side effects

  • Nausea
  • vomiting
  • diarrhea
  • lightheadedness
  • dizziness
  • the feeling of spinning

If any of these Dynacin 100mg effects last or get worse, tell your doctor or pharmacist promptly.

Remember that your doctor has prescribed Dynacin Minocycline HCI 50 mg because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using Dynacin generic do not have serious side effects.

Tell your doctor right away if you have any serious Minocycline Hydrochloride capsules 100mg side effects, including: painful/difficult swallowing, hearing changes (such as ringing in the ears, decreased hearing), joint stiffness/pain/swelling, signs of kidney problems (such as a change in the amount of urine, pink urine), signs of liver problems (such as loss of appetite, stomach/abdominal pain, yellowing eyes/skin, dark urine), yellow-gray-brown tooth discoloration, blue-gray skin/tongue/lips/gums.

Some serious and rare side effects

Minocycline may rarely cause a serious increase in pressure inside the skull (intracranial hypertension-IH). The risk of this side effect is greater for women of childbearing age who are overweight or who have had IH in the past. If IH develops, it usually goes away after minocycline is stopped; however, there is a chance of permanent vision loss or blindness. Get medical help right away if you have: severe/lasting headaches, vision changes (such as blurred/double vision, decreased vision, sudden blindness), nausea/vomiting that doesn’t stop.

This medication may rarely cause a severe intestinal condition (Clostridium difficile-associated diarrhea) due to a type of resistant bacteria. This condition may occur during treatment or weeks to months after treatment has stopped. Tell your doctor right away if you develop: diarrhea that doesn’t stop, abdominal or stomach pain/cramping, blood/mucus in your stool.

Do not use anti-diarrhea or opioid medications if you have any of these symptoms because these products may make them worse.

Use of Dynacin Minocycline HCI 50 mg for prolonged or repeated periods may result in oral thrush or a new yeast infection. Contact your doctor if you notice white patches in your mouth, a change in vaginal discharge, or other new symptoms.

A very serious allergic reaction to Dynacin generic is rare. However, get medical help right away.

Warnings & Precautions

  1. Before taking Minocycline Hydrochloride capsules 100mg, tell your doctor or pharmacist if you are allergic to them.
  2. Before using Dynacin generic, tell your doctor or pharmacist your medical history.
  3. o not drive, use machinery, or do anything that needs alertness until you can do it safely.
  4. Limit alcoholic beverages.
  5. Limit your time in the sun.
  6. Avoid tanning booths and sunlamps.
  7. Do not have any immunizations/vaccinations.
  8. Before having surgery, tell your doctor or dentist about all the products you use.

Children younger than 8 years may be more sensitive to the side effects of minocycline, especially tooth discoloration. Tooth discoloration has also occurred in older children and in young adults. Discuss the risks and benefits of Dynacin generic with the doctor.

Tell your doctor if you are pregnant or plan to become pregnant. You should not become pregnant while using minocycline. Minocycline may harm an unborn baby. If you become pregnant, talk to your doctor right away about the risks and benefits of this medication.

 Dynacin 100mg passes into breast milk. Consult your doctor before breastfeeding.


Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Taking expired minocycline can cause serious illness. Consult your pharmacist or local waste disposal company.

Drug interactions

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor’s approval.

Some products that may interact with Minocycline Hydrochloride capsules 100mg are retinoid medications are taken by mouth (such as acitretin, isotretinoin), strontium.

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50 mg, 75 mg, 100 mg



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