Antibiotic for Bacterial Infections, Acne, and Respiratory Illness
Doxycycline
(generic Z-Pak™ Substitute for Macrolide Allergy)
What is this medication?
Doxycycline contains doxycycline hyclate, a tetracycline-class antibiotic used to treat a wide range of bacterial infections in the body.
This medication works by stopping the growth and spread of bacteria. It does this by interfering with the bacteria’s ability to produce proteins that are necessary for survival, which helps the body’s immune system eliminate the infection more effectively.
Providers may prescribe doxycycline to treat infections affecting different parts of the body. It is commonly used when a bacterial infection is suspected or confirmed and requires antibiotic treatment.
This medication may be prescribed for conditions such as:
respiratory infections such as bronchitis or pneumonia
sinus infections
skin infections, including acne
certain sexually transmitted infections
tick-borne illnesses such as Lyme disease
other bacterial infections as determined by your provider
Doxycycline works throughout the body to control bacterial infections and reduce symptoms such as inflammation, swelling, and infection-related discomfort.
This medication only treats bacterial infections and will not work for viral illnesses such as the common cold or flu.
This medication should only be used when prescribed by a licensed healthcare provider.
SOLO: 21 Tablets; 100mg
DUO: 42 Tablets; 100mg
QUAD: 84 Tablets; 100mg
Travel Kit Substitutes for Allergies
Macrolide Allergy Adjustment: Z-Pak (azithromycin) excluded. Doxycycline 84 tablets may be substituted as an alternative.
Tetracycline Allergy: Doxycycline excluded. No substitution.
When should this medication be used?
Your provider may recommend doxycycline if you develop symptoms that may indicate a bacterial infection during travel.
Common situations where doxycycline may be used include:
persistent sinus congestion or sinus pressure
worsening cough with thick yellow or green mucus
bacterial respiratory infections
skin infections or infected wounds
certain sexually transmitted infections
acne or inflammatory skin conditions caused by bacteria
tick-borne illnesses such as Lyme disease
certain gastrointestinal infections
prevention of malaria in areas where the infection is common
Antibiotics should only be used when recommended by a healthcare provider or when symptoms strongly suggest a bacterial infection.
Do not use doxycycline to treat viral illnesses unless specifically instructed by your provider.
-
Follow the directions on your prescription label and your provider’s instructions.
General guidance for safe use includes:
Take the medication exactly as prescribed.
Take doses at evenly spaced times each day.
Complete the full course of treatment unless your provider instructs otherwise.
Do not skip doses, even if symptoms begin to improve.
To reduce stomach irritation and throat irritation:
Take the tablet with a full glass of water.
Remain upright for at least 30 minutes after taking the medication.
Avoid lying down immediately after taking the tablet.
Drinking plenty of fluids while taking doxycycline may help reduce the risk of irritation or ulceration of the esophagus.
Doxycycline may be taken with food if stomach upset occurs, although some foods may slightly reduce absorption.
If you miss a dose, take it as soon as you remember unless it is almost time for your next dose. Do not take two doses at the same time.
-
If you miss a dose, take it as soon as you remember unless it is almost time for your next dose.
Do not take two doses at the same time.
Always follow the instructions on the pharmacy label provided with your medication.
-
While taking doxycycline, it is important to follow these precautions to ensure safe and effective use:
Take this medication with a full glass of water and remain upright for at least 30 minutes after taking it to reduce the risk of throat or esophageal irritation
Avoid lying down immediately after taking your dose, as this can increase the risk of irritation or ulceration in the esophagus
Doxycycline can make your skin more sensitive to sunlight. Limit sun exposure, wear protective clothing, and use sunscreen to reduce the risk of severe sunburn
Avoid taking this medication at the same time as antacids, calcium, iron, magnesium, zinc, or bismuth-containing products, as they can reduce how well doxycycline is absorbed
Take this medication exactly as prescribed and complete the full course, even if you start to feel better before finishing it
Do not take more than the prescribed dose or use it for longer than instructed
Drink plenty of fluids while taking this medication unless your provider has advised otherwise
If you develop severe diarrhea, abdominal cramping, or bloody stools, contact your healthcare provider, as this may be a sign of a serious intestinal condition
Hormonal birth control may be less effective while taking doxycycline. Use an additional form of contraception if advised by your provider
Inform your healthcare provider if you experience unusual symptoms such as persistent headache, vision changes, or severe skin reactions
Doxycycline affects how your body responds to bacteria and environmental exposure. Staying consistent with dosing, avoiding interactions, and monitoring for side effects will help reduce risks and improve treatment effectiveness.
-
Avoid taking doxycycline at the same time as:
antacids containing aluminum, magnesium, or calcium
iron supplements
bismuth-containing medications such as bismuth subsalicylate
calcium supplements
These products may interfere with the absorption of doxycycline and reduce its effectiveness.
If you miss a dose, take it as soon as you remember unless it is almost time for your next dose. Do not take two doses at the same time.
-
When traveling with doxycycline:
Store medication in a cool, dry place.
Keep tablets in their original labeled container.
Carry medications in your carry-on bag when flying.
Protect your skin from sunlight by using sunscreen, wearing protective clothing, and limiting prolonged sun exposure.
Follow your provider’s guidance on when to begin treatment if symptoms develop during travel.
Important Safety Information
-
Most serious warnings may include:
severe allergic reactions including rash, swelling, or difficulty breathing
severe diarrhea caused by intestinal infection
liver problems
severe skin reactions
inflammation or ulceration of the esophagus
increased sensitivity to sunlight
Doxycycline can cause photosensitivity, which means your skin may become more sensitive to sunlight and may burn more easily than normal.
Like other antibiotics, doxycycline may occasionally allow overgrowth of non-susceptible organisms such as fungi. If symptoms worsen or new symptoms appear during treatment, contact your provider.
-
Stop taking this medication and seek immediate medical care if you experience:
signs of a severe allergic reaction such as rash, hives, itching, or swelling of the face, lips, tongue, or throat
difficulty breathing or trouble swallowing
severe or unusual drowsiness, confusion, or inability to stay awake
sudden vision changes, including blurred vision that does not resolve
severe dizziness or symptoms that worsen instead of improving
any new or concerning symptoms that feel severe or unexpected
Tell Your Healthcare Provider
Contact your healthcare provider if you experience:
persistent or worsening dizziness or vertigo
ongoing drowsiness that interferes with daily activities
dry mouth, fatigue, or headache that becomes bothersome or does not improve
vomiting or symptoms that do not improve with treatment
side effects that feel unusual, severe, or concerning
any questions about how to safely continue or adjust your medication
-
Do not take doxycycline if you:
have a known allergy to doxycycline or other tetracycline antibiotics (such as tetracycline or minocycline), as this may cause a serious allergic reaction
are pregnant or may become pregnant, as doxycycline can harm an unborn baby and may affect bone and tooth development
are breastfeeding, unless specifically directed by your healthcare provider, as this medication can pass into breast milk and affect a nursing infant
are a child under 8 years old, unless your provider determines it is necessary, as doxycycline can cause permanent tooth discoloration and affect bone growth
have previously experienced severe reactions to tetracycline antibiotics, including serious skin reactions or hypersensitivity
If you are unsure whether this medication is safe for you, speak with your healthcare provider before starting treatment.
-
Tell your provider if you:
are allergic to doxycycline, tetracyclines, or other medications
have liver disease
have difficulty swallowing pills or a history of esophageal irritation
are pregnant or planning to become pregnant
are breastfeeding
take blood thinners or other prescription medications
take supplements containing calcium, magnesium, iron, or zinc
Doxycycline is generally not recommended during pregnancy because tetracycline antibiotics may affect fetal bone and tooth development.
This medication is typically not recommended for children under the age of 8 unless specifically prescribed by a provider.
-
Doxycycline is generally well tolerated, but like all medications, it can cause side effects.
Common side effects may include:
nausea or upset stomach
vomiting
diarrhea
loss of appetite
sensitivity to sunlight (sunburn more easily)
These side effects are usually mild and may improve as your body adjusts to the medication. Taking doxycycline with a full glass of water and following your provider’s instructions may help reduce stomach discomfort.
Serious side effects (seek medical care immediately) may include:
severe allergic reactions such as rash, hives, swelling of the face or throat, or difficulty breathing
severe skin reactions, including blistering, peeling skin, or painful rash
severe or persistent headache, vision changes, or pressure behind the eyes, which may be a sign of increased pressure in the brain (intracranial hypertension)
severe diarrhea, watery stools, or bloody stools, which may indicate a serious intestinal condition (C. difficile-associated diarrhea)
difficulty swallowing or chest pain when swallowing, which may indicate irritation or ulceration of the esophagus
unusual bruising or bleeding, or signs of liver problems such as yellowing of the skin or eyes, dark urine, or severe fatigue
Contact your healthcare provider if you experience side effects that are persistent, worsening, or concerning.
-
Taking more doxycycline than prescribed may increase the risk of side effects and toxicity.
Symptoms of overdose may include:
severe nausea or vomiting
persistent stomach pain
diarrhea
loss of appetite
irritation or ulceration of the throat or esophagus
In some cases, taking too much doxycycline may also increase the risk of liver-related side effects or other serious reactions.
If you think you have taken too much of this medication, contact your healthcare provider, local poison control center, or seek medical care right away.
For immediate help, you can call Poison Control at 1-800-222-1222.
-
It is important to safely dispose of doxycycline when it is no longer needed or has expired.
Do not keep leftover antibiotic medication for future use unless instructed by your healthcare provider
Do not share this medication with others, even if they have similar symptoms
Do not flush doxycycline down the toilet or pour it down the drain unless specifically instructed
Use a local medication take-back program or pharmacy disposal service when available
If a take-back option is not available:
Mix the medication with an undesirable substance such as coffee grounds or cat litter
Place the mixture in a sealed bag or container
Dispose of it in your household trash
Proper disposal helps prevent accidental ingestion, misuse, and environmental contamination.
Disclaimers
-
Some Travel Medical Kits may include prescription antibiotics that have been prescribed by a licensed healthcare provider for emergency use during travel when timely access to medical care may be limited.
These medications are intended to help patients manage certain suspected bacterial infections that may occur during travel when medical evaluation is not immediately available. Antibiotics included in travel kits should only be used according to the instructions provided by your healthcare provider and the guidance outlined in your medication safety guide.
Antibiotics are not effective against viral illnesses, including the common cold, influenza, or most sore throats. Using antibiotics when they are not medically necessary can contribute to antibiotic resistance and may expose patients to unnecessary medication risks.
Patients should only begin an antibiotic when symptoms clearly match the guidance provided in the medication instructions or when directed by a licensed healthcare provider.
If symptoms are severe, worsening, or do not improve within the expected time frame, patients should seek medical care as soon as possible.
Travel kit antibiotics are intended for short-term use during travel and should not be used for routine illnesses or without appropriate medical guidance.
Patients should never share prescription medications with others and should never take antibiotics that were prescribed for another individual.
To help prevent antibiotic overuse, antibiotic stockpiling, and unsafe self-treatment, Superior Health & Wellness’s practices the following stewardship principles:
antibiotics are prescribed only after review by a licensed provider for appropriate travel-related use
quantities are limited to the intended treatment course
refills or replacement requests require clinical review, and may be limited
patients should not save antibiotics for unrelated future illnesses or share them with others
patients should contact a provider if symptoms worsen, do not improve, or appear inconsistent with a bacterial infection
antibiotics in travel kits are intended for appropriate, provider-directed use only
These stewardship principles align with the prescribing information’s warnings to use the medication only for proven or strongly suspected bacterial infections and to counsel patients against misuse that can contribute to drug-resistant bacteria.
-
This prescription may have been issued through a telemedicine consultation with a licensed healthcare provider. If you experience severe symptoms, worsening illness, or any concerning reactions while using this medication, contact your prescribing clinician immediately or seek emergency medical care.
-
This medication guide summarizes important safety information derived from pharmacy labeling, medication manufacturers, and prescribing references. It is intended to help patients understand the safe use of medications included in the Superior Health & Wellness Travel Medical Kit.
This guide does not contain the complete prescribing information for Doxycycline. Always follow the directions provided by your healthcare provider and the instructions on the pharmacy label that accompanies your prescription.
Medications included in travel medical kits are prescribed only after a clinical evaluation by a licensed healthcare provider. Prescriptions are issued based on your medical history, current medications, allergies, and overall health needs. Not all patients will qualify for every medication or kit configuration, and the contents of each kit may vary based on provider discretion and patient suitability.
Some medications included in travel medical kits are commercially manufactured medications dispensed through licensed pharmacies. In certain cases, a medication may be provided as a compounded formulation prepared by a licensed compounding pharmacy when a provider determines that a compounded version is medically appropriate for a patient. Compounded medications are not reviewed or approved by the U.S. Food and Drug Administration (FDA) for safety or effectiveness but are prepared by licensed pharmacies in accordance with applicable pharmacy regulations.
Travel Medical Kits are intended to provide limited medication support during travel when timely access to medical care may be difficult. These kits are not a substitute for routine medical care, primary care services, or emergency medical treatment. Purchasing a Travel Medical Kit does not establish a primary care relationship with Superior Health & Wellness and does not include ongoing medical supervision beyond the initial provider evaluation used to determine eligibility for the kit.
Patients experiencing severe illness, worsening symptoms, medication reactions, or medical emergencies should seek immediate medical care or contact a licensed healthcare professional.
Medical services and prescriptions offered through Superior Health & Wellness are provided by licensed healthcare professionals in accordance with applicable state and federal laws. Prescription medications are dispensed by licensed pharmacies following a valid provider prescription.
Patients are encouraged to report negative side effects of prescription medications to the U.S. Food and Drug Administration (FDA). Visit MedWatch or call 1-800-FDA-1088.