sk dox tablet - Doxycycline (NA) medicine

Adox Tablet: Complete Guide to Uses, Side Effects, and Safety

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🏭 SKN Organics 📦 Varies by brand 💊 Allopathy 📅 Updated: Oct 24, 2026
⚠️ Hepatotoxicity Risk ⚠️ Nephrotoxicity Risk 🤰 Pregnancy Category This medicine is not recommended during pregnancy. It crosses the placenta and can cause permanent discoloration of the baby's teeth and affect bone growth. It should only be used if the potential benefit justifies the potential risk, as determined by a doctor. 📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established
Reviewed by
SaathiMed Expert Panel | Oct 24, 2026
🩺
Medically Fact-Checked & Clinically Verified by SaathiMed Clinical Review Board
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026

When to Call Your Doctor IMMEDIATELY

  • Severe or bloody diarrhea
  • Rash, itching, or swelling of the face, lips, or throat
  • Difficulty breathing or swallowing
  • Severe headache with blurred vision or ringing in the ears
  • Yellowing of the skin or eyes
  • Dark urine or severe abdominal pain
  • Unusual bruising or bleeding
  • Chest pain or irregular heartbeat

If experiencing severe symptoms, call emergency services immediately.

What is sk dox tablet used for?

This medicine is an antibiotic containing doxycycline, used to treat a wide range of bacterial infections including respiratory, urinary, skin, and sexually transmitted infections, as well as acne and malaria prevention. It works by stopping bacterial protein synthesis.

  • Generic Name: Doxycycline (NA)
  • Manufacturer: SKN Organics
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 sk dox tablet के बारे में (Hindi Summary)

उपयोग: यह दवा डॉक्सीसाइक्लिन नामक एंटीबायोटिक है, जिसका उपयोग कई प्रकार के बैक्टीरियल संक्रमणों के इलाज के लिए किया जाता है। इसमें श्वसन तंत्र के संक्रमण, मूत्र मार्ग के संक्रमण, त्वचा के संक्रमण, यौन संचारित रोग जैसे क्लैमाइडिया, और मुँहासे शामिल हैं। यह मलेरिया की रोकथाम के लिए भी इस्तेमाल की जाती है। यह दवा बैक्टीरिया के प्रोटीन संश्लेषण को रोककर उन्हें मारती है या बढ़ने से रोकती है।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में मतली, उल्टी, दस्त, पेट दर्द और भूख में कमी शामिल हैं। कुछ लोगों को धूप से एलर्जी हो सकती है, इसलिए बाहर निकलते समय सनस्क्रीन का उपयोग करें। गंभीर दुष्प्रभावों में गंभीर दस्त, एलर्जी प्रतिक्रिया, सिरदर्द के साथ दृष्टि में बदलाव, और यकृत की समस्या शामिल हो सकती है। यदि कोई असामान्य लक्षण दिखे तो तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा को डॉक्टर के निर्देशानुसार ही लें। इसे एक गिलास पानी के साथ निगलें और 30 मिनट तक सीधे बैठे या खड़े रहें। दूध, दही, चीज़, एंटासिड, आयरन या कैल्शियम सप्लीमेंट के साथ न लें, क्योंकि ये दवा के अवशोषण को कम कर सकते हैं। धूप में अधिक देर तक न रहें और सनस्क्रीन का प्रयोग करें। गर्भवती और स्तनपान कराने वाली महिलाएं यह दवा न लें। 8 वर्ष से कम उम्र के बच्चों को यह दवा न दें। शराब का सेवन न करें। पूरा कोर्स पूरा करें, भले ही आप बेहतर महसूस करें।

💡 Did You Know? The first generic medicine was introduced in India in 1970 after the Patents Act was amended.

💊 sk dox tablet Uses & Benefits

[{"condition":"Respiratory tract infections","description":"Used to treat community-acquired pneumonia, bronchitis, and other respiratory infections caused by susceptible bacteria.","evidence":"Well-established"},{"condition":"Urinary tract infections","description":"Effective against certain urinary tract infections, especially those caused by susceptible organisms.","evidence":"Well-established"},{"condition":"Skin and soft tissue infections","description":"Used for cellulitis, abscesses, and other skin infections caused by susceptible bacteria.","evidence":"Well-established"},{"condition":"Sexually transmitted infections","description":"First-line treatment for chlamydia and used as an alternative for gonorrhea and syphilis in certain cases.","evidence":"Well-established"},{"condition":"Acne vulgaris","description":"Used for moderate to severe inflammatory acne due to its antibacterial and anti-inflammatory effects.","evidence":"Well-established"},{"condition":"Tick-borne illnesses","description":"Treatment of choice for Rocky Mountain spotted fever, ehrlichiosis, and Lyme disease in certain stages.","evidence":"Well-established"},{"condition":"Malaria prevention","description":"Used for prophylaxis against malaria in travelers to endemic areas when other options are unsuitable.","evidence":"Well-established"}]

Off-label uses: [{"condition":"Rosacea","description":"Sometimes prescribed off-label for inflammatory rosacea due to its anti-inflammatory properties.","evidence":"Limited"},{"condition":"Periodontal disease","description":"Used off-label as an adjunct in the treatment of aggressive periodontitis.","evidence":"Moderate"},{"condition":"Travelers' diarrhea","description":"May be used off-label for prevention or treatment of travelers' diarrhea in selected cases.","evidence":"Limited"}]

Primary treatment for: Bacterial infections

Also treats: Acne, Malaria, Lyme disease, Chlamydia

📋 Drug Information

Generic Name(s)Doxycycline (NA)
Brand Namesk dox tablet
ManufacturerSKN Organics
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassANTI INFECTIVES
Action ClassTetracyclines
Route of AdministrationOral
StorageStore at room temperature between 15°C and 30°C (59°F to 86°F). Keep away from moisture, heat, and direct sunlight. Keep in the original container.
Shelf Life24 months from the date of manufacture.
WHO GuidelineDoxycycline is included in the WHO Model List of Essential Medicines for the treatment of several bacterial infections, including cholera, chlamydia, and rickettsial diseases.
ICMR GuidelineThe Indian Council of Medical Research recommends doxycycline for the treatment of scrub typhus, community-acquired pneumonia, and other susceptible infections as per national guidelines.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Take this medicine with a full glass of water and stay upright for 30 minutes to prevent esophageal irritation.
2
Avoid taking this medicine with dairy products, antacids, or iron supplements as they reduce its absorption.
3
Use sunscreen and protective clothing when outdoors because this medicine can make your skin more sensitive to sunlight.
4
Complete the full course of treatment even if you feel better after a few days to prevent recurrence and resistance.
5
Avoid alcohol while taking this medicine to reduce stomach upset and maintain effectiveness.
6
Inform your doctor if you are pregnant, planning pregnancy, or breastfeeding before taking this medicine.
7
Do not share this medicine with others, even if they have similar symptoms.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Bacterial respiratory infection
This medicine is commonly prescribed for this.
Likely Use
✅
Acne
This medicine is used for moderate to severe acne.
Likely Use
❌
Viral cold or flu
This medicine is not effective against viral infections.
Not Primary
❌
Fungal infection
This medicine is not an antifungal.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionThis medicine is well absorbed from the gastrointestinal tract after oral administration. Absorption is rapid and nearly complete, with a bioavailability of approximately 90-100%. Food and dairy products can reduce absorption by up to 20%, so it is best taken on an empty stomach with water. However, if stomach upset occurs, it may be taken with food, but not with dairy products or antacids.
DistributionThis medicine is highly lipophilic and distributes widely into body tissues and fluids, including the liver, kidneys, lungs, spleen, bone, and synovial fluid. It also penetrates the cerebrospinal fluid and eye tissues. It crosses the placenta and is excreted in breast milk. Its volume of distribution is approximately 0.7 L/kg.
Protein BindingThis medicine is approximately 80-90% bound to plasma proteins, primarily albumin.
MetabolismThis medicine is not extensively metabolized in the liver. It undergoes some metabolism, but the exact pathways are not fully established. It does not induce or inhibit hepatic enzymes significantly.
Half-LifeThe elimination half-life of this medicine is approximately 18-22 hours, which allows for once or twice daily dosing.
ExcretionThis medicine is primarily excreted unchanged in the feces and urine. About 40% of an oral dose is excreted in the urine within 72 hours, and a significant portion is excreted in the bile and feces. Renal impairment does not significantly affect elimination, but hepatic impairment may prolong the half-life.
BioavailabilityThe oral bioavailability of this medicine is approximately 90-100%.
Onset of ActionThe onset of action depends on the indication and the susceptibility of the organism. Improvement in symptoms may be seen within 24-48 hours, but full therapeutic effect may take several days.
Peak Plasma TimePeak plasma concentrations are reached approximately 2-3 hours after oral administration.
Duration of ActionThe duration of action is typically 24 hours or more due to its long half-life, allowing for once or twice daily dosing.

How It Works

This medicine works by binding to the 30S ribosomal subunit of susceptible bacteria, blocking the attachment of aminoacyl-tRNA to the messenger RNA-ribosome complex. This prevents the addition of new amino acids to the growing peptide chain, thereby inhibiting bacterial protein synthesis. Without proteins, bacteria cannot build cell walls, enzymes, or other essential components, which stops their growth and multiplication. This medicine is bacteriostatic, meaning it primarily stops bacterial growth rather than directly killing the bacteria, allowing the body's immune system to eliminate the infection. It is effective against a wide range of gram-positive and gram-negative bacteria, as well as atypical organisms such as Chlamydia, Mycoplasma, and Rickettsia.

Mechanism Steps

1
Entry into bacterial cell: This medicine enters the bacterial cell through porin channels in the outer membrane and via energy-dependent active transport.
2
Binding to 30S ribosomal subunit: Once inside, it binds reversibly to the 30S ribosomal subunit, specifically to the A site.
3
Blocking aminoacyl-tRNA attachment: This binding prevents the attachment of aminoacyl-tRNA to the mRNA-ribosome complex, halting the addition of new amino acids.
4
Inhibition of protein synthesis: As a result, the elongation of the peptide chain is stopped, and bacterial protein synthesis is inhibited.
5
Bacteriostatic effect: The bacteria cannot grow or multiply, and the body's immune system can clear the infection.

💡 How to Take sk dox tablet

Strength: Immediate-release tablet. Strength not specified in the available information.

1Take this medicine exactly as prescribed by your doctor.
2Swallow the tablet whole with a full glass of water.
3Do not crush, chew, or break the tablet.
4Take it while sitting or standing, and remain upright for at least 30 minutes.
5Take it on an empty stomach, at least 1 hour before or 2 hours after meals, unless your doctor advises otherwise.
6If it upsets your stomach, you may take it with food, but avoid dairy products.
7Do not take it with antacids, iron supplements, or calcium supplements.
8Complete the full course of treatment even if you feel better.

Dosage Information

Adult DosageThe usual adult dose of this medicine for most infections is 100 mg every 12 hours on the first day, followed by 100 mg once daily or 50 mg every 12 hours, depending on the severity of the infection. For severe infections, 100 mg every 12 hours may be used. For acne, the dose is typically 50-100 mg once daily. For malaria prophylaxis, 100 mg once daily starting 1-2 days before travel and continuing for 4 weeks after leaving the area. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician. This medicine is generally not recommended for children under 8 years of age.
Elderly DosageElderly patients may be more susceptible to side effects. Dose adjustment is not usually required, but caution is advised. Dose must be individualized by a qualified clinician.
Renal ImpairmentDose adjustment is not usually required for mild to moderate renal impairment. For severe renal impairment, consult your doctor.
Hepatic ImpairmentUse with caution in patients with hepatic impairment. Dose adjustment may be necessary. Consult your doctor.
Maximum Daily Dose200 mg per day for adults.

Dosage Timeline

🌅 Morning ❌ ☀️ Afternoon ❌ 🌆 Evening ❌ 🌙 Night ❌

🍽️ Food Timing Guide

With water
Take with a full glass of water
Prevents esophageal irritation.
With food
May take with food if stomach upset occurs
Reduces nausea and stomach pain.
Dairy products
Avoid taking together
Calcium reduces absorption.
Iron-rich foods
Separate by 2 hours
Iron reduces absorption.

⏰ What to Do If You Miss a Dose

📌 Less than half the dosing interval has passed
→ Take the missed dose as soon as you remember.
💡 Continue with the regular schedule.
📌 More than half the dosing interval has passed
→ Skip the missed dose.
💡 Do not double dose to catch up.

⚠️ Side Effects of sk dox tablet

✅ Common Side Effects

Nausea (Common (5-10%))
Take with food or a full glass of water. If persistent, consult your doctor.
Diarrhea (Common (5-10%))
Stay hydrated. If severe or bloody, seek medical attention.
Vomiting (Common (5-10%))
Take with food. If persistent, consult your doctor.
Stomach pain (Common (5-10%))
Take with food. If severe, contact your doctor.
Photosensitivity (Common (5-10%))
Use sunscreen and protective clothing. Avoid prolonged sun exposure.

🚨 Serious Side Effects

Clostridium difficile-associated diarrhea (Rare (<0.1%))
Seek immediate medical attention if you develop severe, persistent, or bloody diarrhea.
Severe allergic reaction (anaphylaxis) (Rare (<0.1%))
Seek emergency help if you experience rash, swelling, or difficulty breathing.
Intracranial hypertension (Rare (<0.1%))
Report severe headaches, blurred vision, or ringing in the ears immediately.
Hepatotoxicity (Rare (<0.1%))
Report yellowing of skin or eyes, dark urine, or severe abdominal pain.
Esophageal ulceration (Rare (<0.1%))
Take with a full glass of water and stay upright for 30 minutes. Report severe chest pain or difficulty swallowing.

⚠️ Rare Side Effects

Blood dyscrasias
Report unusual bruising or bleeding.
Pancreatitis
Seek medical attention for severe abdominal pain.
Tooth discoloration
Avoid in children under 8 years and pregnant women.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Warfarin Major
Isotretinoin Major
Antacids Major
Iron supplements Major
Phenytoin Moderate
Carbamazepine Moderate
Methotrexate Moderate
Oral contraceptives Minor
Penicillins Minor
Alcohol Moderate

🚨 Major Interactions

  • Warfarin
  • Isotretinoin
  • Antacids containing aluminum, calcium, or magnesium
  • Iron supplements
  • Retinoids (e.g., acitretin)

⚡ Moderate Interactions

  • Phenytoin
  • Carbamazepine
  • Barbiturates
  • Methotrexate

🍷 Alcohol Interaction

Alcohol may worsen stomach side effects such as nausea and vomiting, and it can reduce the effectiveness of this medicine by affecting liver metabolism. It is best to avoid alcohol while taking this medicine.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Known hypersensitivity to doxycycline or other tetracyclines","Pregnancy","Breastfeeding","Children under 8 years of age"]

⚠️ Warnings & Precautions

["Take with a full glass of water and remain upright for 30 minutes to prevent esophageal irritation.","Avoid sun exposure and use sunscreen due to photosensitivity risk.","Do not take with dairy products, antacids, or iron supplements.","May cause dizziness; avoid driving or operating machinery until you know how it affects you.","May reduce the efficacy of oral contraceptives; use backup contraception.","Prolonged use may lead to superinfection with resistant organisms.","Use with caution in patients with liver disease."]

🤱 Lactation Safety

This medicine is excreted in breast milk. It is generally not recommended during breastfeeding because it can cause tooth discoloration and affect bone growth in the infant. Consult your doctor to discuss alternatives.

💊 Overdose Management

Overdose of this medicine may cause nausea, vomiting, and diarrhea. There is no specific antidote. Treatment is supportive and symptomatic. In case of overdose, seek immediate medical attention or contact a poison control center.

⏰ Missed Dose

If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not take two doses at the same time to make up for a missed dose.

Additional Safety Advice

General Safety

Take this medicine exactly as prescribed by your doctor. Swallow the tablet whole with a full glass of water while sitting or standing, and remain upright for at least thirty minutes to prevent irritation of the food pipe. Do not take this medicine with milk, antacids, calcium supplements, iron supplements, or multivitamins containing iron, as these can reduce its absorption. If you need to take any of these products, separate them by at least two hours before or after taking this medicine. Avoid prolonged exposure to sunlight and use sunscreen, protective clothing, and sunglasses when outdoors. Do not take this medicine if you are pregnant, planning to become pregnant, or breastfeeding, as it can harm the developing baby. Do not give this medicine to children under eight years of age. Avoid alcohol while taking this medicine, as it may worsen stomach side effects and reduce the effectiveness of treatment. Complete the full course even if you feel better after a few days. Do not share this medicine with others. Store it at room temperature away from moisture and heat. Keep all medicines out of reach of children.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients may be more susceptible to the side effects of this medicine, especially gastrointestinal and photosensitivity reactions. Use with caution and monitor closely.

🤰 Pregnancy Planning (TTC)

This medicine is not recommended if you are planning to become pregnant. Consult your doctor to discuss alternative treatments before conception.

🏥 Post-Surgery Considerations

This medicine may be prescribed after surgery to prevent or treat infection. Follow your surgeon's instructions carefully. Inform your surgeon if you are taking this medicine before any surgery.

🦷 Dental Procedures

Inform your dentist if you are taking this medicine before any dental procedure. It may interact with certain medications used in dentistry and can affect oral health.

💚 Lifestyle Tips for Better Results

🏃
Maintain a healthy diet rich in fruits and vegetables to support your immune system.
🥗
Stay well hydrated by drinking plenty of water throughout the day.
😴
Get adequate rest to help your body fight the infection.
💧
Avoid sharing personal items like towels or razors if you have a skin infection.
🧘
Practice good hygiene, including regular handwashing.
🌞
Use sunscreen and protective clothing when outdoors.

🏋️ Exercise Considerations

This medicine may cause dizziness in some people. Avoid strenuous exercise or activities that require alertness until you know how it affects you. If you experience joint pain or swelling, consult your doctor.

🥗 Diet Recommendations

Drink plenty of water to stay hydrated.
Avoid dairy products, antacids, and iron supplements close to the time of taking this medicine.
Include probiotic-rich foods like yogurt (but separate by 2 hours) to maintain gut health.
Eat a balanced diet to support recovery.

💼 Impact on Daily Work & Life

This medicine may cause dizziness or lightheadedness in some people. Avoid driving or operating heavy machinery until you know how it affects you. It is generally safe to continue your daily activities, but take precautions against sun exposure.

🛑 When to Stop This Medicine

Do not stop taking this medicine without consulting your doctor. Complete the full course as prescribed, even if you feel better. If you experience severe side effects, contact your doctor immediately for advice.

📅 Long-Term Use Effects

Long-term use of this medicine may lead to antibiotic resistance, superinfection with resistant organisms, and rarely, liver or blood abnormalities. It is important to use it only when prescribed and for the recommended duration. Regular monitoring may be required if used for prolonged periods.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Other antibiotics

Depending on the infection, other antibiotics such as azithromycin or amoxicillin may be used.

Evidence: Well-established
Topical treatments

For acne, topical retinoids or benzoyl peroxide may be used as alternatives.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

This medicine may reduce the efficacy of live bacterial vaccines such as the typhoid vaccine. Consult your doctor about vaccination timing.

📦 Storage Guide

✅ DO

Store at room temperature (15-30°C)

❌ DON'T

Do not refrigerate unless specified

✅ DO

Keep in original container

❌ DON'T

Do not transfer to unmarked containers

✅ DO

Keep away from direct sunlight

❌ DON'T

Do not store in bathroom cabinet

✈️ Traveling with This Medicine

When traveling with this medicine, carry it in its original packaging along with a copy of your prescription. Store it at room temperature and protect it from extreme heat or moisture. If you are traveling across time zones, adjust your dosing schedule to maintain even intervals, but consult your doctor for specific advice. If you are taking it for malaria prevention, start it 1-2 days before travel and continue for 4 weeks after leaving the endemic area. Check customs regulations for carrying prescription medicines.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 28-year-old woman with chlamydia infection
She was prescribed this medicine twice daily for 7 days. She experienced mild nausea initially but it subsided after taking it with food. She completed the full course and her infection cleared. She was advised to avoid dairy products and to use backup contraception.
💡 Lesson: Taking this medicine with food can reduce nausea, but dairy should be avoided. Completing the full course is essential.
👤 A 45-year-old man with acne vulgaris
He was prescribed this medicine 100 mg once daily for 3 months. He noticed significant improvement in his acne after 4 weeks. He experienced mild sun sensitivity and was advised to use sunscreen. He completed the course without any serious side effects.
💡 Lesson: This medicine is effective for acne but requires patience and sun protection. Regular follow-up with a dermatologist is important.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: You may start feeling better within 24-48 hours, but it may take several days for the full effect. Complete the full course as prescribed.

Q: Can I take this medicine with milk?

A: No, milk and dairy products reduce the absorption of this medicine. Take it with water instead.

Q: Is this medicine safe during pregnancy?

A: No, this medicine is not recommended during pregnancy as it can harm the developing baby. Consult your doctor for alternatives.

Q: Can I drink alcohol while taking this medicine?

A: It is best to avoid alcohol as it may worsen side effects and reduce effectiveness.

Q: What should I do if I miss a dose?

A: If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double dose.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I take this medicine long-term?
  • Will it affect my kidney function?
  • Can I drive after taking this medicine?
  • Does it interact with my blood pressure medicine?
  • What if I miss a dose?
  • Can I drink alcohol while taking this?

🔄 Substitutes for sk dox tablet

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: This medicine can be taken with milk to reduce stomach upset.
    Fact: Milk and dairy products reduce the absorption of this medicine. Take it with water instead.
  • Myth: This medicine is safe for children of all ages.
    Fact: This medicine is not recommended for children under 8 years due to the risk of tooth discoloration.
  • Myth: You can stop taking this medicine once you feel better.
    Fact: You must complete the full course to prevent the infection from returning and to avoid antibiotic resistance.

🔄 Alternative Options

Generic Alternatives

  • Doxycycline 100 mg tablet
  • Doxycycline 50 mg tablet

Brand Alternatives

  • Doxt
  • Doxy-1
  • Microdox
  • Vibramycin

📊 Comparison with Similar Medicines

[{"medicine":"Doxycycline","class":"Tetracycline","route":"Oral","common_use":"Broad-spectrum antibiotic"},{"medicine":"Azithromycin","class":"Macrolide","route":"Oral","common_use":"Respiratory and STI infections"},{"medicine":"Amoxicillin","class":"Penicillin","route":"Oral","common_use":"Ear, nose, throat, and chest infections"}]

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