Common Medicines Explained: What They Do & When You Should Take Them
Common Medicines: Uses, Dosages & Timing
Medicines are essential for treating illnesses, managing chronic conditions, and relieving pain. In India, people often take common medicines without fully understanding their purpose, proper dosage, or timing, which can reduce effectiveness or cause side effects.
This guide explains commonly used medicines, their uses, dosages, and when they should be taken to ensure safe and effective treatment.
1. Painkillers and Fever Reducers
Paracetamol (Acetaminophen)
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Uses: Fever, headache, body pain
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Dosage: Adults 500–1000 mg every 6–8 hours (max 4 g/day), children 10–15 mg/kg
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When to Take: When experiencing fever or mild to moderate pain
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Notes: Avoid alcohol; overdose can harm the liver
Ibuprofen
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Uses: Pain from inflammation, fever, menstrual cramps
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Dosage: Adults 200–400 mg every 6–8 hours (max 1.2 g/day OTC)
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When to Take: For muscle pain, arthritis, or headache
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Notes: Take with food to reduce stomach irritation
2. Antibiotics
Amoxicillin
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Uses: Throat infections, ear infections, skin infections
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Dosage: Adults 500 mg every 8 hours, children 40 mg/kg/day
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When to Take: Only when prescribed for bacterial infections
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Notes: Complete the full course; do not use for viral infections
Azithromycin
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Uses: Respiratory infections, skin infections
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Dosage: Adults 500 mg on day 1, then 250 mg daily for 4 days
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When to Take: As prescribed by a doctor
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Notes: Take on an empty stomach for better absorption
3. Medicines for Cold, Cough & Allergy
Cetirizine
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Uses: Allergy relief, hay fever, urticaria
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Dosage: Adults 10 mg once daily, children 5–10 mg
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When to Take: During allergy symptoms
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Notes: May cause drowsiness in some individuals
Salbutamol Inhaler
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Uses: Asthma, wheezing, breathing difficulties
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Dosage: 100 mcg per inhalation as prescribed
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When to Take: During asthma attacks or preventive use as advised
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Notes: Follow proper inhalation technique for effectiveness
4. Heart and Blood Pressure Medicines
Amlodipine
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Uses: Hypertension, chest pain
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Dosage: 5–10 mg once daily
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When to Take: Consistently, usually in the morning
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Notes: Monitor blood pressure regularly
Atorvastatin
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Uses: High cholesterol, heart disease prevention
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Dosage: 10–20 mg once daily
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When to Take: Preferably at night for better cholesterol control
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Notes: Maintain healthy diet and exercise
5. Diabetes Medicines
Metformin
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Uses: Type 2 diabetes
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Dosage: 500–1000 mg once or twice daily
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When to Take: With meals to reduce stomach upset
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Notes: Monitor blood sugar levels regularly
Glimepiride
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Uses: Blood sugar control in Type 2 diabetes
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Dosage: 1–2 mg once daily
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When to Take: Before breakfast
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Notes: Monitor for signs of low blood sugar
6. Stomach & Digestive Medicines
Omeprazole
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Uses: Acid reflux, ulcers, gastritis
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Dosage: 20 mg once daily before meals
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When to Take: 30–60 minutes before breakfast
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Notes: Avoid long-term unsupervised use
Domperidone
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Uses: Nausea, vomiting, bloating
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Dosage: 10 mg three times daily before meals
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When to Take: When experiencing digestive discomfort
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Notes: Consult doctor if symptoms persist
7. Vitamins and Supplements
Vitamin D3
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Uses: Bone health, vitamin D deficiency
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Dosage: 1000–2000 IU daily, as prescribed
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When to Take: Can be taken with meals for better absorption
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Notes: Avoid overdosing; follow doctor’s advice
Iron Tablets
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Uses: Treat anemia
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Dosage: 100 mg once daily
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When to Take: Preferably on an empty stomach, or as advised
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Notes: Can cause constipation; pair with vitamin C for absorption
8. Safety Tips for Taking Medicines
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Follow prescriptions exactly – Avoid self-medication.
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Check expiry dates – Never use expired medicines.
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Take the correct dosage – Too much or too little can be harmful.
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Be aware of interactions – Inform your doctor about other medicines.
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Store medicines properly – Cool, dry place away from children.
9. When to Consult a Doctor
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Persistent symptoms despite taking medicines
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Severe allergic reactions or side effects
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High fever or unexplained pain
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New or multiple chronic conditions
Tip: Regular consultations ensure safe and effective use of medicines.
10. Conclusion
Understanding common medicines, their uses, dosages, and timing is essential for safe and effective treatment. From painkillers and antibiotics to heart, diabetes, digestive, and vitamin medicines, each has a specific purpose and timing for optimal results.
By following doctor’s advice, reading labels carefully, and monitoring your health, you can get the maximum benefit from medicines while minimizing risks. Proper medicine use not only treats symptoms but also prevents complications and supports overall well-being.
Key Takeaway: Safe and informed use of medicines ensures better health outcomes and protects you from unnecessary side effects or treatment failure.
Medical Disclaimer:
The information provided on Daksho is for educational and informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions regarding a medical condition. Never ignore professional medical advice because of content you read on this website.
Reviewed by: Daksho Health Editorial Team
Last Updated: 02 Feb, 2026