qsp suspension - Quinine (100mg/5ml) medicine

Qsp Suspension: Complete Guide To Uses, Dosage, And Safety

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🏭 Spire Pharma 📦 Varies by brand 💊 Allopathy 📅 Updated: Oct 27, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for malaria treatment.
Reviewed by
SaathiMed Expert Panel | Oct 27, 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 headache, confusion, or visual disturbances
  • Ringing in the ears or hearing loss
  • Irregular heartbeat or palpitations
  • Signs of low blood sugar (sweating, shakiness, confusion)
  • Unusual bleeding or bruising
  • Dark urine or decreased urine output
  • Difficulty breathing or swelling of face, lips, or throat

If experiencing severe symptoms, call emergency services immediately.

What is qsp suspension used for?

This medicine is an oral suspension containing quinine, used to treat malaria. It works by killing the malaria parasite in the blood. It is not for malaria prevention and should be taken exactly as prescribed.

  • Generic Name: Quinine (100mg/5ml)
  • Manufacturer: Spire Pharma
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 qsp suspension के बारे में (Hindi Summary)

उपयोग: यह दवा मलेरिया के इलाज के लिए इस्तेमाल की जाती है। यह क्विनाइन नामक तत्व से बनी है जो मलेरिया परजीवी को मारती है। यह दवा खासकर उन मरीजों के लिए है जिन्हें मलेरिया के हल्के लक्षण हैं। इसे डॉक्टर के बताए अनुसार ही लेना चाहिए।

साइड इफेक्ट्स: इस दवा के आम दुष्प्रभावों में जी मिचलाना, उल्टी, सिरदर्द, चक्कर आना और कान में घंटी बजना शामिल हैं। गंभीर दुष्प्रभावों में दिल की धड़कन अनियमित होना, कम रक्त शर्करा और दृष्टि संबंधी समस्याएं हो सकती हैं। अगर कोई गंभीर लक्षण दिखे तो तुरंत डॉक्टर से मिलें।

सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें। इसे भोजन के साथ लेने से पेट की परेशानी कम होती है। शराब का सेवन न करें। अगर आपको दिल, किडनी या लीवर की बीमारी है तो डॉक्टर को बताएं। खुराक पूरी करें, बीच में न छोड़ें।

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

💊 qsp suspension Uses & Benefits

[{"condition":"Uncomplicated malaria","description":"Used to treat malaria caused by Plasmodium falciparum, Plasmodium vivax, and other susceptible species when other options are not appropriate.","evidence":"Well-established"},{"condition":"Severe malaria","description":"May be used intravenously for severe malaria, but this oral suspension is for uncomplicated cases.","evidence":"Well-established"},{"condition":"Nocturnal leg cramps","description":"Sometimes prescribed off-label for muscle cramps, but not recommended due to risk of serious side effects.","evidence":"Limited"}]

Off-label uses: [{"condition":"Nocturnal leg cramps","description":"Quinine has been used off-label to prevent night-time leg cramps, but the FDA has warned against this use due to potential for serious hematologic and cardiac adverse effects.","evidence":"Limited"}]

Primary treatment for: Malaria

Also treats: Nocturnal leg cramps (off-label)

📋 Drug Information

Generic Name(s)Quinine (100mg/5ml)
Brand Nameqsp suspension
ManufacturerSpire Pharma
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassANTI MALARIALS
Action ClassAntimalarial- others
Route of AdministrationOral
StorageStore at room temperature (15-30°C) in a dry place, away from direct sunlight. Keep the bottle tightly closed. Do not freeze.
Shelf Life24 months from the date of manufacture.
WHO GuidelineWHO recommends quinine for the treatment of severe malaria in certain situations, but artesunate is preferred. For uncomplicated malaria, artemisinin-based combination therapies are first-line. Quinine may be used when ACTs are not available.
ICMR GuidelineICMR guidelines recommend quinine for the treatment of uncomplicated malaria in specific cases, but ACTs are preferred. Quinine is also recommended for severe malaria when artesunate is not available.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Always prescribe the full course of quinine to prevent relapse and resistance.
2
Monitor blood glucose levels closely, especially in patients with diabetes or those receiving intravenous quinine.
3
Warn patients about the risk of cinchonism and advise them to report tinnitus, visual changes, or severe headache immediately.
4
Avoid concomitant use with drugs that prolong the QT interval.
5
Instruct patients to take the suspension with food to minimize gastrointestinal upset.
6
Consider alternative antimalarials in patients with G6PD deficiency or cardiac disease.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Fever with chills
This medicine is commonly prescribed for malaria.
Likely Use
❌
Leg cramps
This medicine is not recommended for leg cramps due to safety concerns.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionQuinine is well absorbed from the gastrointestinal tract after oral administration, with peak plasma concentrations typically reached in 1 to 3 hours. Bioavailability is approximately 70-80% in healthy individuals.
DistributionQuinine is widely distributed throughout the body, including the cerebrospinal fluid and placenta. It has a volume of distribution of approximately 1-2 L/kg in adults.
Protein BindingApproximately 70-80% bound to plasma proteins, primarily albumin and alpha-1-acid glycoprotein.
MetabolismQuinine is extensively metabolized in the liver, primarily by cytochrome P450 enzymes, including CYP3A4, CYP2C19, and CYP2D6. The major metabolites are 3-hydroxyquinine and 2'-quininone.
Half-LifeThe elimination half-life of quinine is approximately 8-12 hours in healthy adults, but it may be prolonged in patients with hepatic or renal impairment.
ExcretionQuinine and its metabolites are primarily excreted in the urine. About 20% of the drug is excreted unchanged in the urine.
BioavailabilityApproximately 70-80%
Onset of ActionThe onset of antimalarial action is not immediate; clinical improvement typically occurs within 24-48 hours after starting therapy.
Peak Plasma Time1-3 hours
Duration of ActionThe antimalarial effect persists as long as therapeutic plasma levels are maintained, typically requiring dosing every 8 hours.

How It Works

Quinine accumulates in the acidic food vacuole of the malaria parasite, where it inhibits the polymerization of heme into hemozoin. This leads to the accumulation of toxic heme and reactive oxygen species, which damage the parasite's membranes and ultimately cause its death. Additionally, quinine may interfere with the parasite's ability to transport and utilize nutrients.

Mechanism Steps

1
Accumulation in food vacuole: Quinine enters the parasite's food vacuole and becomes protonated in the acidic environment, trapping it inside.
2
Inhibition of heme polymerization: Quinine binds to heme and prevents its conversion to hemozoin, leading to toxic heme accumulation.
3
Parasite death: The buildup of toxic heme and oxidative stress damages the parasite's membranes and organelles, causing cell lysis and death.

💡 How to Take qsp suspension

Strength: Each 5 mL of suspension contains 100 mg of quinine.

1Shake the bottle well before each use.
2Measure the dose accurately using the provided measuring cup or syringe.
3Take with food to reduce stomach upset.
4Swallow the suspension; do not chew.
5Follow the prescribed schedule exactly.
6Complete the full course of treatment.

Dosage Information

Adult DosageThe usual adult dose for uncomplicated malaria is 600 mg (30 mL of this suspension) every 8 hours for 5 to 7 days, depending on the Plasmodium species and clinical response. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. Always follow your doctor's prescription.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician.
Elderly DosageElderly patients may be more sensitive to the effects of quinine, especially cardiac and neurological effects. Dose should be individualized by a clinician, and renal function should be monitored.
Renal ImpairmentIn patients with renal impairment, dose reduction may be necessary. Consult a clinician for individualized dosing.
Hepatic ImpairmentIn patients with hepatic impairment, dose reduction may be necessary. Consult a clinician for individualized dosing.
Maximum Daily DoseThe maximum daily dose is not established from available information. Follow your doctor's prescription.

Dosage Timeline

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

🍽️ Food Timing Guide

With food
Take with meals
Reduces stomach upset.
Grapefruit
Avoid
May increase drug levels.

⏰ 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 qsp suspension

✅ Common Side Effects

Nausea (Common (10-20%))
Take with food to reduce nausea. If it persists, consult your doctor.
Vomiting (Common (5-10%))
Stay hydrated. If vomiting is severe, contact your doctor.
Headache (Common (5-10%))
Rest and stay hydrated. Consult doctor if severe.
Dizziness (Common (5-10%))
Avoid driving or operating machinery until you know how it affects you.
Tinnitus (ringing in ears) (Common (5-10%))
Report to your doctor if persistent or severe.

🚨 Serious Side Effects

Cinchonism (Uncommon (1-5%))
Seek immediate medical attention if you experience severe headache, nausea, vomiting, tinnitus, visual disturbances, or confusion.
Hypoglycemia (Rare (<1%))
Monitor blood sugar if diabetic. Seek emergency care if symptoms of low blood sugar occur.
Cardiac arrhythmias (Rare (<1%))
Seek immediate medical attention if you experience palpitations, chest pain, or fainting.
Thrombocytopenia (Rare (<1%))
Report unusual bleeding or bruising to your doctor immediately.
Hypersensitivity reactions (Rare (<1%))
Seek emergency care if you develop rash, swelling, or difficulty breathing.

⚠️ Rare Side Effects

Blackwater fever
Seek immediate medical attention if you notice dark urine, fever, or jaundice.
Optic neuritis
Report any vision changes immediately.
Agranulocytosis
Seek medical attention if you develop fever, sore throat, or mouth ulcers.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Warfarin Major
Digoxin Major
Mefloquine Major
Artemether/lumefantrine Major
Cimetidine Moderate
Rifampicin Moderate
Antacids Moderate
Grapefruit juice Minor
Urinary alkalinizers Minor
Alcohol Moderate

🚨 Major Interactions

  • Warfarin
  • Digoxin
  • Mefloquine
  • Artemether/lumefantrine

⚡ Moderate Interactions

  • Cimetidine
  • Rifampicin
  • Antacids

🍷 Alcohol Interaction

Alcohol should be avoided while taking this medicine as it can increase the risk of side effects such as dizziness, drowsiness, and gastrointestinal upset. It may also worsen dehydration and hypoglycemia.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Hypersensitivity to quinine or related drugs","History of blackwater fever","Glucose-6-phosphate dehydrogenase (G6PD) deficiency","Optic neuritis","Tinnitus or vertigo","Severe cardiac disease","Pregnancy (relative, use with caution)"]

⚠️ Warnings & Precautions

["May cause hypoglycemia; monitor blood glucose, especially in diabetics.","Can cause cinchonism; discontinue if severe symptoms occur.","May prolong QT interval; use with caution in patients with cardiac disease.","Avoid in patients with G6PD deficiency due to risk of hemolysis.","Use with caution in hepatic or renal impairment; dose adjustment may be needed.","Not for malaria prophylaxis.","May impair ability to drive or operate machinery."]

🤱 Lactation Safety

Quinine is excreted in breast milk in small amounts. It is generally considered safe during breastfeeding, but monitor the infant for signs of toxicity such as irritability or feeding difficulties. Consult your doctor.

💊 Overdose Management

Overdose of quinine can cause severe cinchonism, cardiac arrhythmias, blindness, and death. Treatment is supportive and symptomatic. Activated charcoal may be administered if within 1-2 hours of ingestion. For severe cases, hemodialysis or exchange transfusion may be considered. Seek immediate medical attention.

⏰ 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 double the dose.

Additional Safety Advice

General Safety

Take this medicine exactly as prescribed by your doctor. Do not take more or less than the recommended dose. Swallow the suspension as directed; you may take it with food to reduce stomach upset. Avoid alcohol while taking this medicine as it can increase the risk of side effects. Inform your doctor if you have a history of heart rhythm problems, kidney or liver disease, or blood disorders. Do not use this medicine for malaria prevention unless specifically instructed. If you miss a dose, take it as soon as you remember, but if it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose. Keep this medicine out of reach of children and store it as directed on the label.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are more prone to side effects such as dizziness, hearing loss, and cardiac arrhythmias. Dose adjustment may be necessary based on kidney and liver function. Close monitoring is advised.

🤰 Pregnancy Planning (TTC)

If you are planning pregnancy, consult your doctor before taking this medicine. Quinine is generally avoided in the first trimester unless absolutely necessary. Use effective contraception if you are of childbearing age and taking this medicine.

🏥 Post-Surgery Considerations

Inform your surgeon and anesthesiologist that you are taking this medicine, as it can interact with certain anesthetic agents and affect heart rhythm. It may need to be stopped before surgery.

🦷 Dental Procedures

Inform your dentist that you are taking this medicine, as it may interact with certain dental anesthetics or medications. It is generally safe for dental procedures, but your dentist may take precautions.

💚 Lifestyle Tips for Better Results

🏃
Use mosquito nets and repellents to prevent malaria.
🥗
Stay hydrated, especially if you have fever.
😴
Get plenty of rest to help your body recover.
💧
Eat a balanced diet to support your immune system.
🧘
Avoid alcohol while taking this medicine.

🏋️ Exercise Considerations

Avoid strenuous exercise while you are recovering from malaria, as your body needs rest. Consult your doctor before resuming intense physical activity.

🥗 Diet Recommendations

Include plenty of fluids to prevent dehydration.
Eat light, easily digestible meals if you have nausea.
Avoid grapefruit and grapefruit juice.
Limit caffeine as it may worsen tinnitus.

💼 Impact on Daily Work & Life

This medicine may cause dizziness or visual disturbances, which can affect your ability to drive or operate machinery. Avoid these activities until you know how the medicine affects you. Take time off work if you feel unwell.

🛑 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.

📅 Long-Term Use Effects

Long-term use of quinine is not recommended due to the risk of cumulative toxicity, including cinchonism, cardiac arrhythmias, and hypoglycemia. It should only be used for the duration prescribed by your doctor. Regular monitoring of blood counts, liver and kidney function, and cardiac status may be required if prolonged therapy is necessary.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Artemisinin-based combination therapies (ACTs)

First-line treatment for uncomplicated malaria, with fewer side effects and faster parasite clearance.

Evidence: Well-established
Artesunate injection

Preferred treatment for severe malaria.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

There are no known interactions between this medicine and vaccines. However, if you are due for a vaccine, inform your doctor that you are taking this medicine.

📦 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, carry this medicine in its original packaging with a copy of your prescription. Store it at room temperature and protect it from direct sunlight. If crossing time zones, adjust dosing times gradually under medical advice. Check local customs regulations regarding prescription medicines.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 35-year-old man diagnosed with uncomplicated malaria
He was prescribed this medicine and took it with food as directed. After 2 days, his fever subsided, but he experienced mild nausea and ringing in the ears. He reported these to his doctor, who reassured him that these were common side effects and advised him to complete the course. He recovered fully after 5 days.
💡 Lesson: Mild side effects like nausea and tinnitus are common and usually resolve. It is important to complete the full course and report any concerning symptoms to your doctor.
👤 A 28-year-old pregnant woman with malaria
She was hesitant to take this medicine due to pregnancy. Her doctor explained that untreated malaria poses greater risks to both mother and baby. She took the medicine under supervision and delivered a healthy baby.
💡 Lesson: Quinine can be used in pregnancy when necessary, but only under medical supervision. The benefits usually outweigh the risks.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: You may start feeling better within 24-48 hours, but it is important to complete the full course.

Q: Can I take this medicine with food?

A: Yes, taking it with food can help reduce stomach upset.

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

A: Take it as soon as you remember, but if it is almost time for your next dose, skip the missed dose and continue with your regular schedule.

🤔 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 qsp suspension

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 used to prevent malaria.
    Fact: This medicine is not for malaria prevention. It is used only for treatment.
  • Myth: This medicine is safe for leg cramps.
    Fact: The FDA warns against using this medicine for leg cramps due to serious risks.
  • Myth: You can stop taking this medicine once you feel better.
    Fact: You must complete the full course to ensure the parasite is fully cleared.

🔄 Alternative Options

Generic Alternatives

  • Quinine sulfate
  • Quinine dihydrochloride

Brand Alternatives

  • QSP Suspension

📊 Comparison with Similar Medicines

[{"medicine":"Quinine","class":"Cinchona alkaloid","route":"Oral","use":"Malaria treatment"},{"medicine":"Artemether/lumefantrine","class":"Artemisinin combination","route":"Oral","use":"Malaria treatment"},{"medicine":"Mefloquine","class":"Quinoline","route":"Oral","use":"Malaria treatment and prevention"}]

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