INTALITH 300MG

# Lithium 300 mg ## Short Description **Lithium 300 mg** is a prescription **mood stabilizer** primarily used for the treatment and long-term prevention of **manic episodes associated with bipolar disorder**. It may also be used as maintenance therapy to help reduce the recurrence of manic and depressive episodes in people with bipolar disorder. Lithium has a **narrow therapeutic range**, meaning the difference between an effective dose and a potentially toxic dose can be relatively small. Regular blood-level monitoring and medical supervision are therefore essential. > **Important:** A 300 mg tablet/capsule is a strength, not necessarily the patient's daily dose. Lithium dosing must be individualized according to the formulation, blood lithium concentration, kidney function, age, hydration and clinical response. --- ## Key Benefits * Helps control **acute manic or hypomanic symptoms** associated with bipolar disorder. * Helps prevent **recurrence of manic episodes**. * Provides long-term **mood stabilization** in appropriate patients. * May reduce the frequency and severity of bipolar mood episodes. * Can be used as maintenance treatment under psychiatric supervision. * Has an established role in long-term management of bipolar disorder. --- ## Uses / Indications ### 1. Bipolar Disorder Lithium is commonly prescribed for: * Acute mania * Hypomania in appropriate clinical circumstances * Maintenance treatment of bipolar disorder * Prevention of recurrent manic episodes ### 2. Long-Term Mood Stabilization Lithium may help reduce the likelihood of future mood episodes when taken consistently as prescribed. ### 3. Other Psychiatric Uses In some circumstances, specialists may use lithium as an **augmentation treatment for depression** or for other psychiatric conditions. Such use depends on clinical judgment and local prescribing guidelines. > Lithium should only be used under appropriate medical supervision because treatment requires individualized dosing and laboratory monitoring. --- ## How It Works The exact mechanism of lithium is not completely understood. It affects several signaling pathways in the brain and influences neurotransmitter and cellular signaling systems involved in **mood regulation**. Lithium appears to modify intracellular signaling, neuronal activity and second-messenger pathways, helping stabilize abnormal mood fluctuations. **Lithium → influences intracellular signaling and neuronal pathways → helps regulate mood-related brain activity → stabilizes mood.** --- ## Dosage & Administration > **Lithium dosing must be individualized. Do not adjust the dose based solely on how you feel.** ### Adults A typical starting dose may be around **300 mg two or three times daily**, depending on the formulation and clinical situation. The dose is then adjusted according to: * Blood lithium concentration * Clinical response * Kidney function * Age * Other medicines * Tolerability Some patients require higher or lower total daily doses. ### Maintenance Therapy Maintenance doses vary considerably between patients. The goal is to maintain an effective lithium concentration while minimizing toxicity. ### Blood Lithium Monitoring Lithium requires regular blood-level monitoring. A blood sample is usually collected at a **standardized time in relation to the last dose**, commonly as a trough level, because lithium concentrations vary depending on timing. Your healthcare professional will determine the appropriate therapeutic target for your condition. ### How to Take Lithium * Take lithium at the **same times each day**. * Follow the prescribed formulation instructions. * Swallow extended-release tablets whole if applicable. * Do not crush or chew modified-release tablets unless specifically permitted. * Maintain a **consistent fluid and salt intake**. * Do not suddenly make major dietary changes without discussing them with your healthcare professional. ### Missed Dose Take the missed dose when remembered unless it is close to the next scheduled dose. **Do not take a double dose.** If several doses have been missed, contact your healthcare professional before restarting or changing the dose. --- ## Side Effects ### Common Side Effects Possible side effects include: * Fine hand tremor * Increased thirst * Increased urination * Nausea * Mild diarrhea * Stomach discomfort * Fatigue * Weight gain * Mild dizziness Some side effects may improve as the body adjusts to treatment. ### Long-Term Effects Long-term lithium treatment may affect: * Thyroid function * Kidney function * Calcium levels * Weight Regular laboratory monitoring is therefore important. ### Signs of Lithium Toxicity Lithium toxicity can be serious. Warning symptoms include: * Increasing or coarse tremor * Severe nausea or vomiting * Persistent diarrhea * Marked drowsiness * Confusion * Slurred speech * Muscle weakness * Loss of coordination * Unsteady walking * Blurred vision * Severe dizziness * Seizures **Suspected lithium toxicity requires urgent medical assessment.** --- ## Precautions & Warnings ### Narrow Therapeutic Range Lithium has a **narrow therapeutic index**. Blood concentrations that are only modestly higher than the therapeutic range can cause toxicity. Never increase or decrease your dose without medical advice. ### Dehydration Dehydration can increase lithium levels and the risk of toxicity. Take particular care during: * Vomiting * Diarrhea * Heavy sweating * Fever * Hot weather * Significant reduction in fluid intake Contact your healthcare professional if you cannot maintain normal fluid intake. ### Sodium Intake Changes in sodium intake can affect lithium levels. Avoid sudden major changes in your usual salt intake unless medically advised. ### Kidney Function Lithium is primarily eliminated by the kidneys. Reduced kidney function can cause lithium to accumulate. Kidney function should be checked before and during treatment. ### Thyroid Function Lithium can cause **hypothyroidism** in some patients. Periodic thyroid testing may be required. ### Calcium / Parathyroid Function Long-term lithium treatment can increase calcium levels in some patients. Calcium and parathyroid function may need monitoring. ### Pregnancy Lithium can cross the placenta and may affect fetal development. If you are pregnant, planning pregnancy or become pregnant while taking lithium, **contact your healthcare professional promptly**. Do not stop lithium suddenly without medical guidance because abrupt discontinuation may result in serious mood destabilization. ### Breastfeeding Lithium can pass into breast milk. Breastfeeding while taking lithium requires individualized medical assessment and, in some circumstances, monitoring of the infant. ### Heart Conditions Tell your healthcare professional if you have significant heart disease or an abnormal heart rhythm. ### Older Adults Older adults may be more sensitive to lithium and may require lower doses and closer monitoring. --- ## Drug Interactions Lithium has several clinically important interactions. ### NSAIDs NSAIDs can increase lithium levels and the risk of toxicity. Examples include: * Ibuprofen * Naproxen * Diclofenac * Indomethacin Regular NSAID use should be discussed with your healthcare professional. ### ACE Inhibitors Medicines such as: * Enalapril * Lisinopril * Ramipril may increase lithium concentrations. ### ARBs Medicines such as: * Losartan * Telmisartan * Valsartan may increase lithium levels. ### Diuretics Some diuretics can significantly increase lithium concentrations, particularly **thiazide diuretics**. Examples include: * Hydrochlorothiazide * Chlorthalidone ### Other Medicines Affecting Kidney Function Any medicine that changes kidney function or fluid/electrolyte balance may potentially affect lithium levels. ### Serotonergic Medicines Lithium may increase the risk of serotonin-related adverse effects when combined with certain antidepressants or other serotonergic medicines. ### Antipsychotics Lithium may be combined with antipsychotics when clinically appropriate, but certain combinations can increase the risk of neurological adverse effects. ### Caffeine Large changes in caffeine consumption may affect lithium levels because caffeine can influence lithium excretion. > **Always tell your healthcare professional that you take lithium before starting or stopping any prescription medicine, OTC medicine, supplement or herbal product.** --- ## Storage Information * Store at **room temperature**, according to the manufacturer's instructions. * Protect from excessive heat and moisture. * Keep away from direct sunlight. * Keep tablets/capsules in the original packaging. * Keep the container tightly closed. * Keep out of reach of children. * Do not use after the expiry date. * Do not share lithium with another person. --- ## Prescription Status **Lithium 300 mg is a prescription-only medicine.** Because lithium requires individualized dosing and regular monitoring of blood levels, kidney function and other laboratory parameters, it should be used under the supervision of a qualified healthcare professional. --- ## Genuine Medicine Assurance When purchasing **Lithium 300 mg**: * Purchase only from a **licensed and reputable pharmacy**. * Verify the active ingredient and **300 mg strength**. * Check whether the product is immediate-release or extended-release. * Confirm the manufacturer and regulatory information. * Check the batch/lot number and expiry date. * Ensure the packaging is sealed and undamaged. * Do not accept tablets with altered or suspicious packaging. * Purchase only the formulation prescribed by your healthcare professional. * Avoid medicines from unauthorized sellers. * Keep the medicine in its original packaging. * If counterfeit medicine is suspected, contact the manufacturer, licensed pharmacy or relevant medicines regulatory authority. --- # Frequently Asked Questions (FAQ) ### 1. What is Lithium 300 mg used for? Lithium 300 mg is primarily used as a **mood stabilizer for bipolar disorder**, particularly for treating mania and preventing recurrent mood episodes. ### 2. Is Lithium an antidepressant? No. Lithium is primarily a **mood stabilizer**. In some cases, it may be used alongside antidepressants or as augmentation therapy for depression under specialist supervision. ### 3. Is Lithium used for bipolar disorder? Yes. Lithium is one of the established medicines used for **acute mania and long-term maintenance treatment of bipolar disorder**. ### 4. Is 300 mg the usual lithium dose? 300 mg refers to the tablet or capsule strength. The total daily dose varies between patients and must be adjusted according to **blood lithium concentration and clinical response**. ### 5. Does Lithium need blood tests? Yes. Regular blood tests are an important part of safe lithium treatment. Monitoring may include **lithium concentration, kidney function, thyroid function and calcium levels**. ### 6. What is the therapeutic range of Lithium? The target blood concentration depends on the clinical situation, treatment phase and individual patient. Your healthcare professional will establish the appropriate target rather than relying on a single universal number. ### 7. What are the signs of Lithium toxicity? Warning signs include **severe tremor, vomiting, persistent diarrhea, confusion, extreme drowsiness, slurred speech, muscle weakness, loss of coordination and unsteady walking**. Seek urgent medical attention if lithium toxicity is suspected. ### 8. Can dehydration increase Lithium levels? Yes. Dehydration can reduce lithium clearance and cause blood lithium levels to rise. ### 9. Can I drink alcohol while taking Lithium? Alcohol can contribute to dehydration and may worsen dizziness or impaired judgment. Discuss alcohol use with your healthcare professional and avoid excessive alcohol consumption. ### 10. Can I take Ibuprofen with Lithium? Ibuprofen and other NSAIDs can increase lithium levels and potentially cause toxicity. **Do not regularly take NSAIDs with lithium without medical advice.** ### 11. Can Lithium affect the kidneys? Yes. Long-term lithium therapy can affect kidney function in some people, which is why regular kidney monitoring is important. ### 12. Can Lithium affect the thyroid? Yes. Lithium can cause **hypothyroidism or other thyroid abnormalities**. Thyroid function should be monitored during treatment. ### 13. Can I stop Lithium suddenly? Do not stop lithium suddenly without medical advice. Abrupt discontinuation can increase the risk of **relapse of bipolar symptoms**. ### 14. Can Lithium be taken during pregnancy? Lithium can affect pregnancy and requires careful risk-benefit assessment. If you are pregnant or planning pregnancy, contact your healthcare professional promptly rather than stopping lithium on your own. ### 15. Can Lithium be used while breastfeeding? Lithium passes into breast milk, so breastfeeding requires an individualized assessment and may require monitoring of the infant. ### 16. Can Lithium cause weight gain? Yes. **Weight gain** can occur during lithium treatment, although the extent varies between individuals. ### 17. Why do I feel thirsty while taking Lithium? Increased thirst and urination are relatively common lithium effects. Persistent or excessive thirst should be discussed with your healthcare professional because it may also indicate a kidney-related problem. ### 18. What should I do if I vomit or have diarrhea while taking Lithium? Vomiting and diarrhea can cause dehydration and increase the risk of lithium toxicity. Contact your healthcare professional for advice, particularly if symptoms are significant or persistent. ### 19. Can I change my salt intake while taking Lithium? Avoid sudden major changes in salt intake. Sodium balance affects lithium handling by the kidneys and can influence lithium blood levels. ### 20. Is Lithium 300 mg available without a prescription? No. **Lithium 300 mg is a prescription medicine** and requires appropriate medical supervision and monitoring. --- ## Medical Disclaimer This information about **Lithium 300 mg** is provided for educational and general informational purposes only. It is **not a substitute for professional medical advice, diagnosis or treatment**. Lithium is a medicine with a **narrow therapeutic range**. Safe treatment requires individualized dosing and appropriate monitoring of lithium blood levels, kidney function, thyroid function and, when indicated, calcium levels. **Do not change your lithium dose, stop treatment, or restart treatment after a prolonged interruption without medical advice.** Maintain consistent fluid and salt intake and inform your healthcare professional before taking NSAIDs, diuretics, ACE inhibitors, ARBs or other medicines that may affect lithium levels. If you experience severe tremor, persistent vomiting or diarrhea, confusion, slurred speech, marked drowsiness, loss of coordination, seizures or other symptoms suggesting lithium toxicity, **seek urgent medical attention**.