a lith 300mg tablet - Lithium carbonate (300mg) medicine

A-Lith 300mg Tablet (Lithium Carbonate): Complete Guide

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🏭 Pifer Pharmaceuticals Pvt Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 23, 2026
⚠️ Nephrotoxicity Risk 📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established
Reviewed by
SaathiMed Expert Panel | Sep 23, 2026

When to Call Your Doctor IMMEDIATELY

  • Severe hand tremor or muscle twitching
  • Confusion, slurred speech, or dizziness
  • Severe nausea, vomiting, or diarrhea
  • Blurred vision or visual disturbances
  • Irregular heartbeat or palpitations
  • Decreased urine output or swelling in legs
  • Fever with severe headache or stiff neck

If experiencing severe symptoms, call emergency services immediately.

What is a lith 300mg tablet used for?

This medicine is a mood stabilizer used to treat bipolar disorder. It helps reduce manic episodes and prevents mood swings. It requires regular blood tests to monitor levels and ensure safety.

  • Generic Name: Lithium carbonate (300mg)
  • Manufacturer: Pifer Pharmaceuticals Pvt Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 a lith 300mg tablet के बारे में (Hindi Summary)

उपयोग: यह दवा लिथियम कार्बोनेट से बनी है और मूड स्टेबलाइज़र के रूप में काम करती है। इसका उपयोग बाइपोलर डिसऑर्डर (मानसिक विकार) के इलाज में किया जाता है, जिसमें मूड में अत्यधिक उतार-चढ़ाव होता है। यह मेनिया (उन्माद) के दौरों को कम करने और भविष्य में होने वाले मूड स्विंग्स को रोकने में मदद करती है। यह दवा मस्तिष्क में रसायनों को संतुलित करके मूड को स्थिर करती है। इसका सेवन डॉक्टर की सलाह के अनुसार ही करें। नियमित रक्त परीक्षण आवश्यक है।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में हाथ कांपना, अत्यधिक प्यास लगना, बार-बार पेशाब आना, जी मिचलाना और वजन बढ़ना शामिल हैं। गंभीर दुष्प्रभावों में लिथियम विषाक्तता हो सकती है, जिसमें तेज कंपन, भ्रम, उल्टी, दस्त, धुंधली दृष्टि और अनियमित दिल की धड़कन हो सकती है। अगर ऐसे लक्षण दिखें तो तुरंत डॉक्टर से मिलें।

सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें। अपनी मर्जी से दवा की मात्रा न बदलें। पर्याप्त पानी पिएं, खासकर गर्म मौसम में। शराब और अत्यधिक कैफीन से बचें। नमक का सेवन संतुलित रखें। नियमित रूप से लिथियम स्तर, गुर्दे और थायरॉइड की जांच कराएं। गर्भवती होने या गर्भधारण की योजना बनाने से पहले डॉक्टर से सलाह लें।

💡 Did You Know? India is the largest provider of generic medicines globally, supplying over 50% of global vaccine demand.

💊 a lith 300mg tablet Uses & Benefits

[{"condition":"Bipolar disorder (manic episodes)","description":"This medicine is used to treat acute manic episodes in bipolar disorder, helping to reduce symptoms such as elevated mood, hyperactivity, and decreased need for sleep.","evidence":"Well-established"},{"condition":"Bipolar disorder (maintenance)","description":"This medicine is used for long-term maintenance therapy to prevent relapse of manic and depressive episodes in bipolar disorder.","evidence":"Well-established"},{"condition":"Treatment-resistant depression","description":"Sometimes used as an add-on treatment for major depressive disorder that has not responded to other antidepressants.","evidence":"Moderate"}]

Off-label uses: [{"condition":"Cluster headaches","description":"This medicine may be prescribed off-label for the prevention of cluster headaches.","evidence":"Limited"},{"condition":"Schizoaffective disorder","description":"Occasionally used off-label as an adjunct in schizoaffective disorder.","evidence":"Limited"}]

Primary treatment for: Bipolar disorder

Also treats: Treatment-resistant depression, Cluster headaches, Schizoaffective disorder

📋 Drug Information

Generic Name(s)Lithium carbonate (300mg)
Brand Namea lith 300mg tablet
ManufacturerPifer Pharmaceuticals Pvt Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassNEURO CNS
Action ClassMood stabilizers
Route of AdministrationOral
StorageStore at room temperature between 15°C and 30°C (59°F to 86°F). Keep in a dry place away from direct sunlight. Keep the container tightly closed.
Shelf Life24 months from the date of manufacture.
WHO GuidelineThe World Health Organization (WHO) includes lithium in its Model List of Essential Medicines for the treatment of bipolar disorder. It is recommended as a first-line mood stabilizer for acute mania and maintenance therapy.
ICMR GuidelineThe Indian Council of Medical Research (ICMR) guidelines recommend lithium as a first-line treatment for bipolar disorder, with regular monitoring of serum levels and renal function.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Monitor serum lithium levels regularly, especially after any dose change or when starting interacting medications.
2
Advise patients to maintain consistent sodium and fluid intake to avoid lithium toxicity.
3
Educate patients about the early signs of lithium toxicity, such as coarse tremor, vomiting, and confusion.
4
Check renal and thyroid function at baseline and every 6 to 12 months during long-term therapy.
5
Use with caution in elderly patients and those with renal or cardiovascular disease.
6
Avoid abrupt discontinuation; taper gradually under medical supervision to prevent relapse.
7
Counsel women of childbearing age about the risks of lithium during pregnancy and the need for effective contraception.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

Manic episodes
This medicine is commonly prescribed for this.
Likely Use
Mood swings
This medicine helps stabilize mood.
Likely Use
Fever
This medicine is not a primary fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionThis medicine is rapidly and completely absorbed from the gastrointestinal tract after oral administration. Peak plasma concentrations occur within 1 to 2 hours for immediate-release formulations.
DistributionThis medicine distributes widely throughout the body, including the central nervous system. It crosses the placenta and is excreted in breast milk. The volume of distribution is approximately 0.7 to 0.9 L/kg.
Protein BindingThis medicine is not bound to plasma proteins.
MetabolismThis medicine is not metabolized by the liver and is excreted unchanged by the kidneys.
Half-LifeThe elimination half-life of this medicine is approximately 18 to 36 hours in adults with normal renal function. It may be longer in elderly patients or those with renal impairment.
ExcretionThis medicine is excreted primarily through the kidneys via glomerular filtration. About 80% of a single dose is excreted in the urine within 24 hours. Renal clearance is influenced by sodium and water balance.
BioavailabilityThe bioavailability of this medicine is approximately 100% for immediate-release formulations.
Onset of ActionThe onset of action for mood stabilization is typically 5 to 14 days, but full therapeutic effects may take several weeks.
Peak Plasma TimePeak plasma concentrations occur 1 to 2 hours after oral administration of the immediate-release tablet.
Duration of ActionThe duration of action is not clearly defined, but the effects persist as long as therapeutic blood levels are maintained.

How It Works

This medicine works by modulating several neurotransmitter systems in the brain. It affects the reuptake and release of serotonin and norepinephrine, and it alters the activity of second messenger systems such as inositol monophosphatase and glycogen synthase kinase-3. These actions help stabilize mood and reduce the frequency of manic and depressive episodes. The exact mechanism is not fully understood, but it is believed to involve changes in neuronal signaling and neuroprotection.

Mechanism Steps

1
Entry into neurons: This medicine enters neurons through sodium channels and competes with other cations.
2
Inhibition of inositol monophosphatase: It inhibits the enzyme inositol monophosphatase, leading to depletion of inositol and alteration of second messenger signaling.
3
Modulation of GSK-3: It inhibits glycogen synthase kinase-3 (GSK-3), which is involved in mood regulation and neuroplasticity.
4
Neurotransmitter balance: It modulates serotonin and norepinephrine levels, contributing to mood stabilization.

💡 How to Take a lith 300mg tablet

Strength: 300 mg immediate-release tablet

1Take this medicine exactly as prescribed by your doctor.
2Swallow the tablet whole with a full glass of water.
3Take with food or milk to reduce stomach upset.
4Do not crush, chew, or break the tablet unless instructed.
5Take at the same times each day to maintain consistent blood levels.
6Do not change your dose without consulting your doctor.
7Drink plenty of fluids throughout the day.

Dosage Information

Adult DosageThe usual adult dose of this medicine for acute mania is 300 mg two to three times daily, with a target serum lithium level of 0.8 to 1.2 mEq/L. For maintenance therapy, the dose is typically 300 mg two to four times daily, aiming for a serum level of 0.6 to 1.2 mEq/L. Dose must be individualized by a qualified clinician based on indication, age, weight, renal function, and serum lithium levels. Regular monitoring is required.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician.
Elderly DosageElderly patients may require lower doses due to reduced renal function. Start with a lower dose and titrate slowly based on serum lithium levels and clinical response. Close monitoring of renal and thyroid function is essential.
Renal ImpairmentIn patients with renal impairment, dose reduction is necessary. Lithium is excreted by the kidneys, and accumulation can occur. Monitor serum lithium levels closely and adjust dose accordingly. Avoid use in severe renal impairment.
Hepatic ImpairmentNo specific dosage adjustment is required for hepatic impairment, as lithium is not metabolized by the liver. However, monitor for signs of toxicity.
Maximum Daily DoseThe maximum daily dose should not exceed 1800 mg for immediate-release tablets, but the dose must be individualized based on serum lithium levels. Do not exceed the prescribed dose.

Dosage Timeline

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

🍽️ Food Timing Guide

With food
Take with meals
Reduces stomach upset.
High-sodium foods
Maintain consistent intake
Sudden changes in sodium can affect lithium levels.
Caffeine
Limit or maintain consistent intake
Caffeine can increase lithium excretion.

⏰ 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 a lith 300mg tablet

✅ Common Side Effects

Fine hand tremor (Common (10-20%))
Usually improves with time. If bothersome, consult your doctor; dose adjustment may help.
Increased thirst (Common (10-20%))
Drink plenty of water. If excessive, consult your doctor.
Frequent urination (Common (10-20%))
Stay hydrated. Report if it interferes with daily life.
Nausea (Common (5-10%))
Take with food or milk to reduce nausea. If persistent, consult your doctor.
Weight gain (Common (5-10%))
Maintain a healthy diet and exercise. Consult a dietitian if needed.

🚨 Serious Side Effects

Lithium toxicity (Uncommon (1-10%))
Seek immediate medical attention if you experience severe tremor, confusion, vomiting, diarrhea, blurred vision, or irregular heartbeat.
Renal impairment (Uncommon (1-10%))
Regular kidney function tests are required. Report decreased urine output or swelling.
Hypothyroidism (Uncommon (1-10%))
Regular thyroid function tests are required. Report fatigue, weight gain, or cold intolerance.
Cardiac arrhythmias (Rare (<1%))
Seek immediate medical attention if you experience palpitations, chest pain, or fainting.

⚠️ Rare Side Effects

Skin rash
Consult your doctor if rash develops.
Hair thinning
Consult your doctor; may be reversible.
Leukocytosis
Usually benign; monitor with blood tests.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Thiazide diuretics Major
ACE inhibitors Major
NSAIDs Major
Carbamazepine Major
Loop diuretics Moderate
Calcium channel blockers Moderate
SSRIs Moderate
Caffeine Minor
Sodium bicarbonate Minor

🚨 Major Interactions

  • Thiazide diuretics
  • ACE inhibitors
  • NSAIDs
  • Carbamazepine

⚡ Moderate Interactions

  • Loop diuretics
  • Calcium channel blockers
  • SSRIs

🍷 Alcohol Interaction

Alcohol should be avoided while taking this medicine because it can lead to dehydration, which increases lithium levels and the risk of toxicity. Alcohol may also worsen mood symptoms and interfere with treatment.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Severe renal impairment","Severe cardiovascular disease","Severe dehydration or sodium depletion","Known hypersensitivity to lithium or any component of the formulation","Pregnancy, especially first trimester, unless absolutely necessary","Breastfeeding"]

⚠️ Warnings & Precautions

["Lithium has a narrow therapeutic index; regular blood monitoring is essential.","Dehydration from any cause can lead to lithium toxicity.","Avoid sudden changes in sodium intake.","Use with caution in elderly patients and those with renal or cardiac disease.","May impair ability to drive or operate machinery until you know how it affects you.","Do not stop this medicine abruptly without medical advice.","Inform your doctor if you develop fever, infection, or persistent vomiting or diarrhea."]

🤱 Lactation Safety

This medicine is excreted in breast milk and can cause toxicity in the nursing infant. Breastfeeding is generally not recommended while taking this medicine. If breastfeeding is essential, infant lithium levels and renal function should be monitored closely.

💊 Overdose Management

Overdose of this medicine can be life-threatening. Symptoms include severe tremor, vomiting, diarrhea, confusion, seizures, and coma. If overdose is suspected, seek emergency medical attention immediately. Treatment may include gastric lavage, intravenous fluids, and hemodialysis to remove lithium from the blood. Do not induce vomiting unless instructed by a healthcare professional.

⏰ 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 a double dose to make up for a missed one. If you miss multiple doses, contact your doctor for advice.

Additional Safety Advice

General Safety

Always take this medicine exactly as prescribed. Do not change your dose without your doctor's approval. Drink plenty of fluids, especially in hot weather or during exercise, to prevent dehydration. Avoid excessive caffeine and alcohol. Maintain a consistent salt intake; sudden changes in sodium levels can affect lithium levels. Regular blood tests for lithium levels, kidney function, and thyroid function are essential. Inform all healthcare providers that you are taking this medicine. Do not use this medicine if you are pregnant or planning pregnancy without consulting your doctor. Keep out of reach of children.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are more sensitive to the effects of this medicine and are at higher risk of toxicity due to reduced renal function. Lower doses are often required. Regular monitoring of renal function and serum lithium levels is essential. Watch for signs of confusion, dehydration, and drug interactions.

🤰 Pregnancy Planning (TTC)

If you are planning pregnancy, consult your doctor before conceiving. This medicine has been associated with congenital heart defects, especially if taken during the first trimester. Your doctor may consider alternative treatments or adjust the dose. Effective contraception is recommended while taking this medicine.

🏥 Post-Surgery Considerations

Inform your surgeon and anesthesiologist that you are taking this medicine. Lithium can interact with anesthetic agents and affect fluid and electrolyte balance. Close monitoring of lithium levels and renal function is advised before and after surgery.

🦷 Dental Procedures

Inform your dentist that you are taking this medicine. Lithium can cause dry mouth, which may increase the risk of dental problems. Maintain good oral hygiene and stay hydrated. No specific precautions are required for dental procedures, but your dentist should be aware of your medication.

💚 Lifestyle Tips for Better Results

🏃
Maintain a consistent sleep schedule.
🥗
Stay hydrated by drinking plenty of water.
😴
Avoid alcohol and recreational drugs.
💧
Engage in regular physical activity as advised by your doctor.
🧘
Practice stress-reduction techniques like meditation or yoga.
🌞
Keep a mood diary to track your symptoms and side effects.

🏋️ Exercise Considerations

Exercise can cause fluid loss through sweating, which may increase lithium levels. Drink plenty of water before, during, and after exercise. Avoid strenuous exercise in hot weather without adequate hydration. Consult your doctor before starting a new exercise regimen.

🥗 Diet Recommendations

Maintain a consistent intake of sodium (salt).
Avoid sudden changes in caffeine intake.
Stay well hydrated.
Eat a balanced diet rich in fruits and vegetables.
Limit processed foods high in sodium.

💼 Impact on Daily Work & Life

This medicine may cause dizziness or drowsiness in some people. Avoid driving or operating heavy machinery until you know how it affects you. It may also cause frequent urination, which can affect work. Discuss any work-related concerns with your doctor.

🛑 When to Stop This Medicine

Do not stop this medicine without consulting your doctor. Abrupt discontinuation can lead to relapse of bipolar symptoms. Your doctor may gradually taper the dose under close supervision. If you experience severe side effects, contact your doctor immediately for guidance.

📅 Long-Term Use Effects

Long-term use of this medicine may affect kidney and thyroid function. Regular monitoring of renal and thyroid function is essential. It may also cause weight gain and fine hand tremor. With proper monitoring, the benefits of mood stabilization often outweigh the risks. Periodic assessment of the need for continued treatment is recommended.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Cognitive behavioral therapy (CBT)

Can complement medication in managing bipolar disorder.

Evidence: Well-established
Lifestyle modifications

Regular sleep, exercise, and stress management can help stabilize mood.

Evidence: Moderate

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

There are no specific vaccine interactions with this medicine. However, inform your healthcare provider about your medication before receiving any vaccine. Live vaccines should be avoided if you are immunocompromised, but this medicine does not typically cause immunosuppression.

📦 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. Keep it in your carry-on luggage to avoid loss. Maintain your dosing schedule; if crossing time zones, consult your doctor for adjustments. Stay hydrated during travel, especially in hot climates. Check customs regulations for controlled substances before traveling internationally.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 35-year-old woman with bipolar disorder
She had frequent manic episodes that affected her work and relationships. Her doctor prescribed this medicine and monitored her lithium levels regularly. After a few weeks, her mood stabilized, and she was able to return to work. She learned to drink plenty of water and avoid alcohol.
💡 Lesson: Consistent monitoring and lifestyle adjustments are key to successful treatment with this medicine.
👤 A 50-year-old man with bipolar disorder
He experienced side effects like hand tremor and increased thirst initially. His doctor adjusted the dose and advised him to take the medicine with food. The side effects diminished over time, and his mood remained stable for years.
💡 Lesson: Side effects can often be managed with dose adjustment and proper counseling.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: This medicine may take 5 to 14 days to show initial effects, but full therapeutic benefits may take several weeks.

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

A: Take the missed dose 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: Can I stop taking this medicine if I feel better?

A: No, do not stop this medicine abruptly without consulting your doctor. Stopping suddenly can cause relapse of symptoms.

🤔 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 a lith 300mg 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 is addictive.
    Fact: This medicine is not addictive, but it must be taken regularly as prescribed.
  • Myth: I can stop taking this medicine once I feel better.
    Fact: Do not stop this medicine abruptly; it can cause relapse. Consult your doctor before making any changes.
  • Myth: This medicine will change my personality.
    Fact: This medicine helps stabilize mood; it does not change your personality.

🔄 Alternative Options

Generic Alternatives

  • Lithium carbonate 300 mg tablet

Brand Alternatives

  • A-Lith 300mg Tablet
  • Licab 300mg Tablet
  • Lithosun 300mg Tablet
  • Manias 300mg Tablet

📊 Comparison with Similar Medicines

[{"medicine":"This medicine","class":"Mood stabilizer","primary_use":"Bipolar disorder","monitoring":"Serum lithium levels, renal and thyroid function"},{"medicine":"Valproate","class":"Mood stabilizer","primary_use":"Bipolar disorder, epilepsy","monitoring":"Liver function, platelet count"},{"medicine":"Carbamazepine","class":"Mood stabilizer","primary_use":"Bipolar disorder, epilepsy","monitoring":"Blood counts, liver function, serum levels"},{"medicine":"Lamotrigine","class":"Mood stabilizer","primary_use":"Bipolar depression","monitoring":"Skin rash"}]

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