subamycin 500mg capsule - Tetracycline (500mg) medicine

Resteclin 500 Capsule (Tetracycline 500 mg): Complete Medicine Guide

No reviews yet
🏭 Deys Medical 📦 Varies by brand 💊 Allopathy 📅 Updated: Oct 24, 2026
⚠️ Hepatotoxicity Risk 🤰 Pregnancy Category This medicine is contraindicated during pregnancy. Tetracyclines cross the placenta and can cause permanent discoloration of the baby's teeth, affect bone growth, and, in rare cases, cause liver toxicity in the mother. Alternative antibiotics should be used during pregnancy. 📋 Prescription Required 💊 Generic Available
Medically Reviewed
12 min read
Evidence: Well-established for approved indications.
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, watery, or bloody diarrhea that does not improve
  • Yellowing of the skin or eyes, dark urine, or severe abdominal pain
  • Severe headache with blurred vision or visual disturbances
  • Swelling of the face, lips, tongue, or throat, or difficulty breathing
  • Chest pain, palpitations, or irregular heartbeat
  • Unusual bruising or bleeding
  • Decreased urine output or swelling in the legs
  • High fever with rash or joint pain

If experiencing severe symptoms, call emergency services immediately.

What is subamycin 500mg capsule used for?

This medicine is a tetracycline antibiotic used to treat a variety of bacterial infections, including acne, chlamydia, and atypical pneumonia. It works by stopping bacteria from making proteins. It should be taken on an empty stomach with water, and avoided in pregnancy and children under 8 years.

  • Generic Name: Tetracycline (500mg)
  • Manufacturer: Deys Medical
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 subamycin 500mg capsule के बारे में (Hindi Summary)

उपयोग: यह दवा टेट्रासाइक्लिन वर्ग की एक एंटीबायोटिक है, जिसका उपयोग विभिन्न प्रकार के बैक्टीरियल संक्रमणों के इलाज के लिए किया जाता है। इसमें मुँहासे (एक्ने), क्लैमाइडिया, माइकोप्लाज्मा निमोनिया, रिकेट्सियल संक्रमण, ब्रुसेलोसिस, हैजा, लाइम रोग और कुछ मसूड़ों की बीमारियाँ शामिल हैं। यह दवा बैक्टीरिया के प्रोटीन संश्लेषण को रोककर उनकी वृद्धि को रोकती है। इसे खाली पेट, पानी के साथ लेना चाहिए और दूध, दही, चीज़, एंटासिड, आयरन या कैल्शियम सप्लीमेंट के साथ नहीं लेना चाहिए। गर्भवती महिलाओं, स्तनपान कराने वाली माताओं और 8 वर्ष से कम उम्र के बच्चों को यह दवा नहीं दी जानी चाहिए।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में मतली, उल्टी, दस्त, पेट दर्द, भूख न लगना और मुँह या जीभ में छाले शामिल हैं। कुछ लोगों को धूप के प्रति संवेदनशीलता, चक्कर आना या सिरदर्द भी हो सकता है। गंभीर दुष्प्रभावों में खूनी दस्त, यकृत की क्षति (पीलिया, गहरे रंग का पेशाब), गंभीर सिरदर्द के साथ दृष्टि में बदलाव, और एलर्जी प्रतिक्रियाएँ जैसे चेहरे या गले में सूजन शामिल हैं। यदि कोई भी गंभीर लक्षण दिखे तो तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा को डॉक्टर के निर्देशानुसार ही लें। इसे एक गिलास पानी के साथ लें और लेने के बाद 30 मिनट तक लेटें नहीं। दूध, दही, चीज़, एंटासिड, आयरन या कैल्शियम सप्लीमेंट के साथ न लें, क्योंकि ये दवा के अवशोषण को कम कर सकते हैं। यदि एंटासिड लेना आवश्यक हो तो इस दवा से 2 घंटे पहले या बाद में लें। गर्भावस्था, स्तनपान और 8 वर्ष से कम उम्र के बच्चों में इस दवा का उपयोग न करें। धूप में बाहर निकलते समय सनस्क्रीन और सुरक्षात्मक कपड़े पहनें। शराब का सेवन न करें। पूरा कोर्स पूरा करें, भले ही आप बेहतर महसूस करें।

💡 Did You Know? India has the highest number of USFDA-compliant plants outside the USA.

💊 subamycin 500mg capsule Uses & Benefits

[{"condition":"Acne vulgaris","description":"This medicine is used to treat moderate to severe inflammatory acne by reducing the bacteria that contribute to acne and decreasing inflammation in the skin.","evidence":"Well-established"},{"condition":"Chlamydia trachomatis infection","description":"This medicine is an effective treatment for uncomplicated genital chlamydia infection when other first-line options are not suitable.","evidence":"Well-established"},{"condition":"Mycoplasma pneumoniae pneumonia","description":"This medicine is used to treat respiratory tract infections caused by Mycoplasma pneumoniae, a common cause of atypical pneumonia.","evidence":"Well-established"},{"condition":"Rickettsial infections","description":"This medicine is the treatment of choice for Rocky Mountain spotted fever and other rickettsial diseases such as scrub typhus.","evidence":"Well-established"},{"condition":"Brucellosis","description":"This medicine is used in combination with other antibiotics such as rifampin or streptomycin to treat brucellosis, a bacterial infection acquired from animals.","evidence":"Well-established"},{"condition":"Cholera","description":"This medicine is used as an adjunct to fluid replacement to shorten the duration of diarrhea and reduce fluid loss in cholera.","evidence":"Well-established"},{"condition":"Lyme disease","description":"This medicine is an alternative treatment for early Lyme disease in patients who cannot take first-line antibiotics.","evidence":"Well-established"},{"condition":"Periodontitis","description":"This medicine is sometimes used as an adjunct to scaling and root planing in aggressive periodontitis to reduce periodontal pathogens.","evidence":"Moderate"}]

Off-label uses: [{"condition":"Rosacea","description":"Sometimes prescribed off-label for inflammatory rosacea due to its anti-inflammatory and antibacterial effects.","evidence":"Limited"},{"condition":"Malaria prophylaxis","description":"This medicine has been used off-label for malaria prevention in travelers who cannot take standard antimalarials, but resistance is common.","evidence":"Limited"},{"condition":"Sclerosing cholangitis","description":"Rarely used off-label in some liver conditions, but evidence is weak and not recommended routinely.","evidence":"Insufficient"}]

Primary treatment for: Bacterial infections

Also treats: Acne vulgaris, Chlamydia infection, Mycoplasma pneumonia, Rickettsial infections, Brucellosis, Cholera, Lyme disease, Periodontitis

📋 Drug Information

Generic Name(s)Tetracycline (500mg)
Brand Namesubamycin 500mg capsule
ManufacturerDeys Medical
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) in a dry place. Keep the capsules in their original container, tightly closed, away from direct sunlight and moisture. Do not refrigerate unless specifically instructed.
Shelf LifeThe shelf life of this medicine is typically 24 months from the date of manufacture. Check the expiry date on the package before use.
WHO GuidelineNot established from the available information.
ICMR GuidelineNot established from the available information.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Take this medicine on an empty stomach with a full glass of water, at least 1 hour before or 2 hours after meals.
2
Avoid taking this medicine with milk, yogurt, cheese, antacids, or iron/calcium supplements as they reduce absorption.
3
Remain upright for 30 minutes after taking the capsule to prevent esophageal irritation.
4
Use sunscreen and protective clothing because this medicine can make your skin more sensitive to sunlight.
5
Complete the full prescribed course even if you feel better after a few days to prevent antibiotic resistance.
6
Report any severe diarrhea, which may be a sign of Clostridium difficile infection.
7
Inform your doctor if you are pregnant, planning pregnancy, or breastfeeding, as this medicine is contraindicated.
8
Avoid alcohol while taking this medicine to reduce stomach upset and dizziness.
9
Do not share this medicine with others, even if they have similar symptoms.
10
If you miss a dose, take it as soon as you remember unless it is almost time for the next dose; do not double dose.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Acne
This medicine is commonly prescribed for moderate to severe acne.
Likely Use
✅
Genital discharge
This medicine is used for chlamydia and other sexually transmitted infections.
Likely Use
✅
Fever with cough
This medicine may be used for atypical pneumonia caused by Mycoplasma.
Likely Use
❌
Common cold
This medicine is not effective against viral infections.
Not Primary
❌
Fungal infection
This medicine is an antibiotic and does not treat fungal infections.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionThis medicine is absorbed from the gastrointestinal tract, but absorption is significantly reduced by food, milk, dairy products, antacids, and iron or calcium supplements. Oral bioavailability is approximately 60-80% in the fasting state but can drop by more than 50% when taken with food or dairy. To maximize absorption, it should be taken on an empty stomach, at least one hour before or two hours after meals.
DistributionThis medicine is widely distributed throughout the body, including into urine, bile, saliva, tears, and cerebrospinal fluid, although cerebrospinal fluid levels are low. It crosses the placenta and is excreted in breast milk. It tends to accumulate in tissues with high calcium content, such as bones and teeth, which is why it is contraindicated in pregnancy and young children.
Protein BindingThis medicine is approximately 55-65% bound to plasma proteins, primarily albumin.
MetabolismThis medicine is not extensively metabolized by the liver. It is primarily excreted unchanged in urine and bile. A small amount may undergo enterohepatic circulation.
Half-LifeThe elimination half-life of this medicine is approximately 6 to 12 hours in patients with normal kidney function. It is prolonged in patients with renal impairment.
ExcretionThis medicine is excreted mainly unchanged in the urine and feces. Renal excretion is the primary route, and dosage adjustment may be necessary in patients with severe kidney disease.
BioavailabilityThe oral bioavailability of this medicine is approximately 60-80% when taken on an empty stomach. It is significantly reduced when taken with food, milk, or antacids.
Onset of ActionThe onset of action for this medicine depends on the infection being treated. Improvement in symptoms may be noticed within 24 to 48 hours, but full therapeutic effect may take several days.
Peak Plasma TimePeak plasma concentrations of this medicine are reached approximately 2 to 4 hours after oral administration in the fasting state.
Duration of ActionThe duration of action of this medicine is not precisely defined, but its effects last for several hours after each dose. It is usually taken multiple times daily to maintain therapeutic levels.

How It Works

This medicine works by binding reversibly 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. Because protein synthesis is essential for bacterial growth and multiplication, this medicine stops bacteria from reproducing and allows the body's immune system to clear the infection. It is bacteriostatic, meaning it does not directly kill bacteria but inhibits their growth. This medicine is effective against a wide range of gram-positive and gram-negative bacteria, as well as atypical organisms such as Mycoplasma, Chlamydia, Rickettsia, and spirochetes. Resistance can develop through efflux pumps, ribosomal protection proteins, or enzymatic inactivation of the drug.

Mechanism Steps

1
Entry into bacterial cell: This medicine enters susceptible bacteria through porin channels and energy-dependent transport systems.
2
Binding to 30S subunit: Once inside, it binds reversibly to the 30S ribosomal subunit, specifically to the A site.
3
Blocking aminoacyl-tRNA: This binding prevents aminoacyl-tRNA from delivering new amino acids to the growing peptide chain.
4
Inhibition of protein synthesis: As a result, the bacteria cannot synthesize essential proteins needed for growth and division.
5
Bacterial stasis and immune clearance: The bacteria become static and are eventually cleared by the host immune system.

💡 How to Take subamycin 500mg capsule

Strength: This medicine is available as a 500 mg immediate-release capsule for oral administration.

1Take this medicine on an empty stomach, at least 1 hour before or 2 hours after meals, unless your doctor advises otherwise.
2Swallow the capsule whole with a full glass of water (8 ounces). Do not crush or chew.
3Remain upright for at least 30 minutes after taking to prevent irritation of the food pipe.
4Avoid taking with milk, dairy products, antacids, or iron/calcium supplements within 2 hours of the dose.
5Take at evenly spaced intervals as prescribed to maintain consistent blood levels.
6Complete the entire course even if you feel better after a few days.

Dosage Information

Adult DosageThe usual adult dose of this medicine is 500 mg taken orally every 6 to 12 hours, depending on the type and severity of the infection. For acne, a lower dose such as 500 mg once or twice daily may be used. For severe infections, higher doses may be prescribed. The dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. Always follow your doctor's prescription exactly and complete the full course.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician. This medicine is generally contraindicated in children under 8 years of age due to the risk of permanent tooth discoloration and effects on bone growth.
Elderly DosageElderly patients may be more sensitive to the side effects of this medicine, especially nausea, diarrhea, and photosensitivity. Renal function should be assessed before and during treatment, and dosage may need adjustment if kidney function is impaired. The dose must be individualized by a qualified clinician.
Renal ImpairmentIn patients with mild to moderate renal impairment, no dosage adjustment is usually necessary. In severe renal impairment (creatinine clearance less than 30 mL/min), the dose should be reduced or the dosing interval extended. The dose must be individualized by a qualified clinician based on renal function.
Hepatic ImpairmentIn patients with hepatic impairment, this medicine should be used with caution. Dosage reduction may be necessary, and liver function should be monitored. The dose must be individualized by a qualified clinician.
Maximum Daily DoseThe maximum recommended daily dose of this medicine is 2 grams (2000 mg) per day in divided doses for adults. Higher doses should only be used under close medical supervision.

Dosage Timeline

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

🍽️ Food Timing Guide

With food
Take on an empty stomach
Food reduces absorption of this medicine.
Milk and dairy
Avoid within 2 hours
Calcium binds to the medicine and reduces its effectiveness.
Antacids
Separate by 2 hours
Aluminum, calcium, and magnesium reduce absorption.
Iron supplements
Separate by 2 hours
Iron forms insoluble complexes with the medicine.

⏰ 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 subamycin 500mg capsule

✅ Common Side Effects

Nausea (Common (up to 10%))
Take with a full glass of water and a light snack if allowed. If nausea persists, consult your doctor.
Diarrhea (Common (up to 10%))
Stay hydrated. If diarrhea is severe or contains blood, contact your doctor immediately.
Stomach pain or discomfort (Common (5-10%))
Take with water and avoid lying down for 30 minutes. If pain is severe, seek medical advice.
Loss of appetite (Common (5-10%))
Eat small, frequent meals. Consult your doctor if it persists.
Sore mouth or tongue (Uncommon (1-5%))
Maintain oral hygiene. If severe, consult your doctor.
Photosensitivity (Uncommon (1-5%))
Use sunscreen and protective clothing. Avoid prolonged sun exposure.

🚨 Serious Side Effects

Clostridium difficile-associated diarrhea (Rare (<1%))
Seek immediate medical attention if you develop severe, watery, or bloody diarrhea, or abdominal cramps.
Liver toxicity (Rare (<1%))
Report yellowing of skin or eyes, dark urine, or severe nausea to your doctor immediately.
Intracranial hypertension (Rare (<1%))
Seek urgent care if you experience severe headaches, blurred vision, or visual disturbances.
Severe allergic reaction (anaphylaxis) (Very rare (<0.1%))
Call emergency services if you have swelling of face, lips, throat, difficulty breathing, or widespread rash.
Blood disorders (Very rare (<0.1%))
Report unusual bruising, bleeding, or signs of infection to your doctor.

⚠️ Rare Side Effects

Lupus-like syndrome
Consult doctor if you develop joint pain, rash, or fever.
Pancreatitis
Seek immediate care for severe abdominal pain radiating to the back.
Esophageal ulceration
Take with plenty of water and remain upright for 30 minutes. Report chest pain or difficulty swallowing.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Antacids Major
Iron supplements Major
Calcium supplements Major
Isotretinoin Major
Warfarin Major
Methotrexate Major
Penicillins Moderate
Oral contraceptives Moderate
Digoxin Moderate
Lithium Moderate

🚨 Major Interactions

  • Antacids containing aluminum, calcium, or magnesium
  • Iron supplements
  • Calcium supplements
  • Isotretinoin
  • Warfarin
  • Methotrexate

⚡ Moderate Interactions

  • Penicillins
  • Oral contraceptives
  • Digoxin
  • Lithium
  • Diuretics

🍷 Alcohol Interaction

Alcohol may worsen stomach upset, dizziness, and nausea caused by this medicine. It is advisable to avoid alcohol while taking this medicine, especially if you have an underlying liver condition.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Known hypersensitivity to tetracyclines","Pregnancy","Breastfeeding","Children under 8 years of age","Severe renal impairment","Severe hepatic impairment","Concurrent use with isotretinoin"]

⚠️ Warnings & Precautions

["Take with a full glass of water and remain upright for 30 minutes to prevent esophageal irritation.","Avoid taking with dairy products, antacids, or iron supplements.","Use sunscreen and protective clothing due to photosensitivity risk.","May cause dizziness; avoid driving or operating machinery until you know how it affects you.","Do not use in pregnancy or breastfeeding.","Complete the full course as prescribed to prevent resistance.","Report severe diarrhea, which may indicate C. difficile infection.","Monitor for signs of liver injury such as jaundice or dark urine.","Use with caution in patients with renal or hepatic impairment.","May reduce the effectiveness of oral contraceptives; use backup contraception."]

🤱 Lactation Safety

This medicine is excreted in breast milk and may cause dental staining and bone effects in the nursing infant. It is generally not recommended during breastfeeding unless the benefit outweighs the risk. Consult your doctor for alternative options.

💊 Overdose Management

Overdose of this medicine may cause nausea, vomiting, diarrhea, and abdominal pain. There is no specific antidote. Treatment is supportive and symptomatic. If a large amount has been ingested, seek immediate medical attention. Gastric lavage may be considered if ingestion occurred within 1-2 hours. Monitor electrolytes and hydration status.

⏰ Missed Dose

If you miss a dose of this medicine, 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, with a full glass of water, and do not lie down for at least 30 minutes after swallowing the capsule to prevent irritation of the food pipe. Avoid taking this medicine with milk, yogurt, cheese, antacids, iron supplements, or calcium supplements because these can bind to the medicine and reduce its absorption. If you need an antacid, take it at least two hours before or after this medicine. Do not take this medicine if you are pregnant, planning to become pregnant, or breastfeeding, as it can harm the developing baby's teeth and bones. Children under eight years of age should not take this medicine unless specifically directed by a pediatrician for a serious infection. Use effective sunscreen and protective clothing while taking this medicine because your skin may become more sensitive to sunlight. Avoid alcohol while taking this medicine, as it can worsen stomach upset and dizziness. Do not share this medicine with anyone else, even if they have similar symptoms, and do not save leftover capsules for future use. Complete the entire prescribed course even if you feel better, and contact your doctor if symptoms do not improve within a few days or if they worsen.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are more likely to have reduced kidney function and may be more susceptible to the side effects of this medicine. Dose adjustment may be necessary based on renal function. Monitor for signs of dehydration, dizziness, and photosensitivity. Regular monitoring of kidney and liver function is advised.

🤰 Pregnancy Planning (TTC)

This medicine is contraindicated during pregnancy and in women planning to become pregnant. If you are trying to conceive, inform your doctor so that an alternative antibiotic can be prescribed. Use effective contraception while taking this medicine and for at least 7 days after completing the course.

🏥 Post-Surgery Considerations

If you are scheduled for surgery, inform your surgeon and anesthesiologist that you are taking this medicine. It may interact with certain medications used during surgery. Your doctor may advise you to stop the medicine temporarily before surgery. Follow your surgeon's instructions.

🦷 Dental Procedures

Inform your dentist that you are taking this medicine before any dental procedure. This medicine may affect the outcome of certain dental treatments and can interact with medications used in dentistry. It may also cause tooth discoloration in children, so it is contraindicated in children under 8 years.

💚 Lifestyle Tips for Better Results

🏃
Maintain good hydration by drinking plenty of water throughout the day.
🥗
Use sunscreen with SPF 30 or higher and wear protective clothing when outdoors.
😴
Practice good oral hygiene to prevent mouth sores and fungal infections.
💧
Eat a balanced diet rich in probiotics (like yogurt) after completing the course to restore healthy gut bacteria.
🧘
Avoid alcohol and recreational drugs while on this medicine.
🌞
Get adequate rest to support your immune system during infection.

🏋️ Exercise Considerations

This medicine may cause dizziness or photosensitivity. Avoid strenuous outdoor exercise during peak sun hours. If you feel dizzy, avoid exercising until the effect wears off. Stay hydrated during exercise.

🥗 Diet Recommendations

Take the medicine on an empty stomach with water.
Avoid dairy products, antacids, and iron supplements within 2 hours of dosing.
Include probiotic-rich foods like yogurt after finishing the course to restore gut flora.
Eat a balanced diet with plenty of fruits and vegetables to support recovery.
Stay well hydrated.

💼 Impact on Daily Work & Life

This medicine may cause dizziness, nausea, or photosensitivity, which can affect your ability to drive or operate machinery. Avoid driving until you know how it affects you. If your work involves prolonged sun exposure, take extra precautions. Otherwise, most people can continue their normal daily activities while taking this medicine.

🛑 When to Stop This Medicine

Do not stop taking this medicine before completing the full prescribed course, even if you feel better, as this can lead to relapse and antibiotic resistance. If you experience severe side effects such as bloody diarrhea, signs of liver injury, or severe allergic reactions, stop the medicine and seek immediate medical attention. Always consult your doctor before stopping this medicine for any reason.

📅 Long-Term Use Effects

Long-term use of this medicine can lead to antibiotic resistance, fungal overgrowth (such as oral thrush or vaginal yeast infections), and rarely, liver toxicity or blood disorders. Prolonged use may also cause photosensitivity and gastrointestinal disturbances. Regular monitoring of liver and kidney function is recommended if used for more than a few weeks. This medicine should only be used for as long as prescribed by your doctor.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Doxycycline

Another tetracycline antibiotic with better absorption and fewer gastrointestinal side effects.

Evidence: Well-established
Minocycline

A tetracycline antibiotic often used for acne, with a longer half-life.

Evidence: Well-established
Topical antibiotics

For acne, topical clindamycin or erythromycin may be used instead of oral antibiotics.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

This medicine may reduce the effectiveness of live bacterial vaccines such as the typhoid vaccine. Avoid receiving live bacterial vaccines while taking this medicine. Inactivated vaccines are generally safe. Consult your doctor for specific vaccine 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

✅ DO

Keep out of reach of children

❌ DON'T

Do not use after expiry date

✈️ Traveling with This Medicine

When traveling with this medicine, carry it in its original packaging with the prescription label clearly visible. Bring a copy of your prescription or a letter from your doctor, especially for international travel, as some countries have strict rules about antibiotics. Store the capsules in a cool, dry place away from direct sunlight. If crossing time zones, continue taking the medicine at the same intervals as prescribed; you may need to adjust the timing gradually. Do not pack it in checked luggage; keep it in your carry-on bag. Check customs regulations for your destination regarding prescription medicines.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 28-year-old woman with moderate acne
She was prescribed this medicine for her acne. She initially took it with milk to avoid stomach upset, but her acne did not improve. After her doctor explained that milk reduces absorption, she switched to taking it with water on an empty stomach. Within 6 weeks, her acne significantly improved. She also used sunscreen daily to prevent photosensitivity.
💡 Lesson: Taking this medicine with water on an empty stomach is essential for effectiveness. Avoid dairy products around the time of dosing.
👤 A 35-year-old man with chlamydia infection
He was diagnosed with chlamydia and prescribed this medicine for 7 days. He felt better after 3 days and stopped taking it. Two weeks later, his symptoms returned. His doctor explained that stopping early can lead to relapse and resistance. He completed the full course the second time and was cured.
💡 Lesson: Always complete the full course of antibiotics, even if symptoms improve, to ensure the infection is fully eradicated.
👤 A 62-year-old man with a urinary tract infection
He had mild kidney impairment and was prescribed this medicine. His doctor adjusted the dose and monitored his kidney function. He experienced mild nausea but completed the course successfully without any kidney complications.
💡 Lesson: Dose adjustment and monitoring are important in elderly patients with kidney disease.

💬 Questions Patients Often Ask

Q: How long does it take to work?

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

Q: Can I take this medicine with food?

A: It is best taken on an empty stomach, at least 1 hour before or 2 hours after meals, because food reduces its absorption.

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

A: 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.

Q: Is this medicine safe during pregnancy?

A: No, this medicine is contraindicated during pregnancy as it can harm the developing baby's teeth and bones. Consult your doctor for alternatives.

Q: Can I drink alcohol while taking this medicine?

A: It is advisable to avoid alcohol as it can worsen stomach upset and dizziness.

🤔 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?
  • Can I take it with milk?
  • Is it safe during pregnancy?

🔄 Substitutes for subamycin 500mg capsule

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 bind to this medicine and reduce its absorption, making it less effective. Take it with water instead.
  • Myth: You can stop taking this medicine once you feel better.
    Fact: You must complete the full prescribed course to ensure the infection is fully treated and to prevent antibiotic resistance.
  • Myth: This medicine is safe for children and pregnant women.
    Fact: This medicine is contraindicated in pregnancy and children under 8 years due to risks of tooth discoloration and bone effects.
  • Myth: This medicine works for viral infections like the common cold.
    Fact: This medicine is an antibiotic and is only effective against bacterial infections, not viruses.

🔄 Alternative Options

Generic Alternatives

  • Tetracycline hydrochloride 500 mg capsules

Brand Alternatives

  • Resteclin 500 capsule

📊 Comparison with Similar Medicines

[{"medicine":"Tetracycline","class":"Tetracycline antibiotic","half_life":"6-12 hours","typical_dose":"500 mg every 6-12 hours","notes":"Take on empty stomach; avoid dairy."},{"medicine":"Doxycycline","class":"Tetracycline antibiotic","half_life":"12-22 hours","typical_dose":"100 mg every 12 hours","notes":"Better absorption with food; fewer GI side effects."},{"medicine":"Minocycline","class":"Tetracycline antibiotic","half_life":"11-17 hours","typical_dose":"100 mg every 12 hours","notes":"Higher risk of vestibular side effects."}]

😊 Was this information helpful?

Browse Medicines A-Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Back to Medicines Directory