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What Is Tetracycline?

Tetracycline is an antibiotic medication that can be used to treat a range of infections caused by bacteria. It belongs to a class of antibiotics called tetracyclines, which also includes antibiotics such as doxycycline and minocycline.

Tetracycline is considered a broad-spectrum antibiotic, meaning it can effectively treat a range of different bacterial infections.

It is available under several brand names, the most recognized and available in the U.S. include: Sumycin, Panmycin, Tetracap, and Tetracon

Tetracycline comes in a variety of forms, including capsules and tablets, topical solutions or ointments, and oral suspension.

What Is Tetracycline Used For?

As a broad-spectrum antibiotic, Tetracycline is used to treat infections caused by a wide range of bacteria. Most commonly it is prescribed to treat respiratory infections, acne, and some STIs.

Common bacterial infections that can be treated with Tetracycline include:

• Acne
• Skin infections
• Upper respiratory tract infections
• Lower respiratory tract infections
• Sexually transmitted infections (STIs)

The above list is not exhaustive, and other infections may also be treated with Tetracycline.

How Does Tetracycline Work?

Tetracycline works by inhibiting bacterial proteins, which are essential for the growth and survival of bacteria. Every living cell needs proteins to function. Inside bacterial cells, tiny structures called ribosomes build these proteins. Tetracycline binds to these ribosomes, preventing them from assembling the proteins correctly.

This causes the bacteria to become unable to reproduce and grow, which in turn leads to their death. Allowing the body’s immune system to more easily clear the infection.

What Are the Side Effects of Tetracycline?

The most common side effects of Tetracycline include:

• Nausea
• Vomiting
• Loss of appetite
• Headache
• Diarrhea
• Skin rash or itching
• Sore or irritated throat
• Increased sensitivity of the skin to sunlight

These side effects are generally mild and quite common but if any of these symptoms are severe or do not go away with time, it is important to contact a healthcare professional.

More serious side effects may include:

• Severe headaches
• Chest pain
• Difficulty breathing
• Signs of allergic reaction, including hives and swelling of the face, lips, tongue, or throat
• Yellowing of the skin or eyes (jaundice)
• Bloody stool

If any of these side effects occur, it is important to contact a healthcare professional. If you experience any trouble breathing or chest pain seek medical attention immediately.

How to Take Tetracycline?

As with all prescription medications, it is important to follow your doctor’s instructions on how and when to take the drug.

The dosage will depend on the type and severity of the infection being treated.

When taken orally, it can be taken with both meals and without food, but if taken with food it can help reduce the risk of stomach upset.

Tetracycline should generally be taken for the duration prescribed by a doctor. If symptoms do not improve within a few days or worsen, contact your doctor as soon as possible. And always finish the entire course of antibiotics, even if you start to feel better. Stopping early can lead to antibiotic resistance or recurrence of the infection.

Frequently Asked Questions About Tetracycline

Do You Need a Prescription for Tetracycline?

Yes, you must have a valid prescription from a licensed doctor in order to purchase Tetracycline. As it is an antibiotic, these types of medications are regulated by the United States government and require a prescription in order to purchase them.

How Quickly Does Tetracycline Work?

The speed of Tetracycline’s effectiveness depends on a variety of factors such as the type and severity of the infection, the dosage, and the individual’s health and age.

In general, Tetracycline begins to take effect within a few days. However, it may take several days or even weeks for symptoms to fully resolve. It is important to follow your healthcare professional’s instructions when taking any prescription medication and always finish the entire course of antibiotics, even if you start to feel better.

Is Tetracycline Stronger Than Doxycycline?

As the two are very similar antibiotics, there is no clear answer to this question. Both medications may be used to treat a wide range of bacterial infections, however, they may have different efficacy for different types of infection.

It is important to consult with a healthcare professional when determining the appropriate medication and dosage for your particular condition.

Is Tetracycline Safe?

Tetracycline, like any other medication, has potential side effects and should be taken as directed by a healthcare professional.

It is important to follow the instructions of your doctor or pharmacist regarding the dosage and frequency of taking Tetracycline and seek medical advice if you experience any serious or concerning side effects.

What to Avoid While Taking Tetracycline?

There are several things you should avoid or be cautious about when taking Tetracycline such as:

• Dairy Products
• Antacids
• Iron Supplements
• Excessive Sunlight
• Alcohol

For a full list of potential drugs, food, or activities to avoid when taking Tetracycline, it is important to consult with a doctor or pharmacist.

For more detailed information about Tetracycline, you can refer to the following sources:

• Tetracycline prescription label, Food and Drug Administration (FDA).
• Tetracycline, Drugs.com.
• Tetracycline, MedlinePlus.

The content on this page has been medically reviewed for accuracy and comprehensiveness by Amy Dougherty, FNP-BC, AGAC