Things you need to know about Demeclocycline tablets

Things you need to know about Demeclocycline tablets

There are times when a doctor prescribes an antibiotic for an infection, right? In such a case, knowing how to use that medicine correctly is very important to speed up your recovery. Today we are going to talk about one such antibiotic, Demeclocycline. We will talk in detail about this medicine, its action, side effects, and things to be careful about while using it.

What is Demeclocycline?

Simply put, demeclocycline is a drug that belongs to the tetracycline class of antibiotics. Its main function is to kill certain types of bacteria in our body and cure infections caused by them.

A mistake many people make is to ask for antibiotics for viral infections like the common cold and flu. These medications do not work at all for viral infections. Therefore, it is very important to use them only if prescribed by a doctor, and as directed.

Things you need to tell your doctor before taking medicine

Before your doctor prescribes demeclocycline for you, he or she will need to have a complete picture of your health. So, be sure to tell them if you have any of the following conditions:

  • If you have kidney disease.
  • If you have liver disease.
  • If you have had an allergic reaction to demeclocycline, other tetracycline drugs, or any other food or medicine.
  • If you are pregnant or trying to get pregnant.
  • If you are a breastfeeding mother.

Based on this information, your doctor will decide whether this medication is right for you or whether the dosage needs to be changed.

How to use the medicine correctly?

To get the most out of a medication, you need to take it exactly as prescribed.

  • Drink plenty of water: Drink a full glass of water when taking this pill. If you find it difficult to swallow the pill, take a sip of water first, then take the pill and drink water again.
  • Take on an empty stomach: This is very important. Take this medicine either one hour before or two hours after a meal. Taking it with food, especially milk and dairy products (which contain calcium), can reduce the absorption of the medicine into the body.
  • Be mindful of your posture: Sit or stand while taking the medicine. If you are taking it at night before bed, take it at least 10 minutes before going to bed.Take the medicine. This is to prevent discomfort that may occur if the pill gets stuck in the throat or esophagus .
  • Complete the course: This is the most important thing. Even if you feel better, take the full course of medication prescribed by your doctor for the full duration. If you stop taking it, your infection may come back, and the bacteria may become resistant to the medication and stop working.
  • If given to children: This medicine is generally not recommended for children under 8 years of age, as it may affect the development of teeth. However, in some special cases, a doctor may prescribe it for a child over 8 years of age. The decision about this is entirely up to the doctor.

What to do if you take too much medicine (overdose)?

If you think you have taken too much of this medicine, do not panic and immediately go to the nearest hospital Emergency Department (ETU) . Or call the National Poisons Information Centre at the Colombo National Hospital.

What if I miss a dose of medication?

Take the missed dose as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and take your next dose at the scheduled time. Never take a double dose.

Other things that may interact with this medicine (Interactions)

Demeclocycline can interact with some other medications you are taking, so it is important to tell your doctor about all the medications you are taking.

  • Antacids
  • Birth control pills
  • Other antibiotics like penicillin
  • Some vitamins (especially those containing iron and calcium)
  • Blood thinners like Warfarin

This list is not complete, so please inform your doctor about all medications, vitamins, and traditional medicines you are taking.

Things to keep in mind when taking medication

  • Be careful of the sun: Your skin may be very sensitive to the sun while taking this medicine. Therefore, avoid strong sunlight as much as possible. If you go out, wear clothes that cover your body well and use a good sunscreen.
  • Dizziness/drowsiness: Some people may experience drowsiness or dizziness when taking this medication. Therefore, avoid activities that require alertness, such as driving or operating machinery, until you know how this medication affects your body.
  • Birth control pills: If you are taking birth control pills, their effectiveness may be reduced while taking this medication. Therefore, talk to your doctor about using an additional form of birth control (e.g., condoms).
  • Iron and calcium: Do not take iron or calcium-containing vitamins, antacids, or other supplements within 2 hours before or after taking this medication.

What are the possible side effects?

Like any medicine, demeclocycline can cause side effects. Some of these are serious, while others are common. It is important to be aware of these.

Side effects that should be reported to the doctor immediately Side effects that are usually not serious, but should be reported to the doctor if they persist

  • Allergic reactions such as skin rash, itching, swelling of the lips/tongue/face
  • Difficulty breathing
  • Changes in eyesight or hearing
  • Dark urine
  • Severe dizziness
  • Increased frequency or amount of urination, extreme thirst
  • Pain when swallowing
  • Redness, blistering, peeling skin inside the mouth or on the skin
  • Tooth discoloration (especially in children)
  • Unusual bruising or bleeding
  • Yellowing of the eyes or skin (jaundice)

  • Black tongue
  • Diarrhea
  • Headache
  • Appetite
  • Nausea, vomiting

Take-Home Message

  • Demeclocycline is an antibiotic given for bacterial infections. It does not work against viruses.
  • Take the full amount of medicine prescribed by the doctor for the full duration. Do not stop taking it just because you feel better.
  • The best time to take the medicine is on an empty stomach. Do not take it with dairy foods.
  • Be sure to tell your doctor about any other medications you are taking and any other illnesses you have.
  • Be careful of the sun while taking the medication. If you experience any serious side effects, seek medical advice immediately.
  • If you have any questions or concerns about this medication, talk to your doctor about it.

Demeclocycline, Demeclocycline, tetracycline, antibiotic, bacterial infections, medication side effects, Sri Lanka

👩🏽‍⚕️ Additional questions (FAQs)

💬 What diseases is Demeclocycline / Declomycin a pill used for?

Although this is a powerful antibiotic pill from the Tetracycline family, it is used much less often for 'killing germs' these days (it has Doxycycline). The specialty is that doctors use this pill as the only medicine (off-label) to treat 'SIADH', a condition in which the salt/sodium level in the blood becomes dangerously low/dilute (Hyponatremia).

💬 How does this antibiotic pill (Demeclocycline) help with dehydration?

This is a benefit discovered through a side effect! When you have SIADH (Syndrome of Inappropriate Antidiuretic Hormone), the brain releases too much water-retaining hormone (ADH), causing salt to be lost from the blood. What this pill does is 100% block the action of ADH on the kidneys. The kidneys then release the excess water as urine, bringing the salt level back up to normal.

💬 Why do you say not to drink milk/not to go out in the sun while taking this pill? Are there any other risks?

Yes! This is a tetracycline, so if you eat milk/yogurt within 2 hours of taking this pill, the calcium will react with the pill and the pill will not be absorbed by the body. The other most dangerous side effect is the risk of 'Extreme Photosensitivity' when taking this! Also, this can cause 'permanent yellow/brown teeth' (Tooth discoloration) in children under 8 years of age.

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