Drug Class: Antiepileptic — Sodium Channel Modulator | Form: Intravenous Injection | Prescription Status: Prescription Only (Rx) — DRAP Registered
What is Lalap IV 200mg/20ml Injection?
Lalap IV 200mg/20ml contains Lacosamide — an antiepileptic medicine administered intravenously when oral treatment is temporarily not possible or when rapid seizure control is required. It works by selectively enhancing the slow inactivation of voltage-gated sodium channels in overactive nerve cells — stabilising neuronal membranes and reducing the repetitive, uncontrolled firing that causes seizures. Unlike older antiepileptics that block fast sodium channel inactivation, Lacosamide's unique mechanism of targeting slow inactivation gives it a distinct mode of action that works effectively alongside other antiepileptic medicines with minimal pharmacokinetic interactions.
What is Lalap IV 200mg/20ml Used For?
- Partial-onset seizures — as monotherapy or adjunctive therapy in patients aged 17 years and older (مرگی کے دورے)
- Primary generalised tonic-clonic seizures — adjunctive therapy in patients aged 4 years and older
- Intravenous seizure management — when oral Lacosamide is temporarily not tolerated or not feasible
- Transitional therapy — bridging treatment during hospitalisation for patients already on oral Lacosamide
How Does Lalap IV Work?
Seizures occur when nerve cells fire excessively and uncontrollably. Lacosamide selectively enhances the slow inactivation of voltage-gated sodium channels — a state that makes overactive neurons less able to sustain rapid repetitive firing. By prolonging the time sodium channels remain in their inactive state, Lacosamide reduces the frequency and propagation of abnormal electrical activity across the brain without completely blocking normal neuronal function. This targeted mechanism allows effective seizure control while preserving normal brain activity and offering a complementary mode of action when used alongside other antiepileptics.
Dosage and Administration
⚠️ Administered only by or under direct supervision of a qualified healthcare professional in a clinical setting. Dose is individualised based on patient weight, age, and clinical response.
| Indication | Usual Adult Dose | Administration |
|---|---|---|
| Partial-onset seizures (monotherapy) | 200mg twice daily | IV infusion over 30–60 minutes |
| Partial-onset seizures (adjunctive) | 100–200mg twice daily | IV infusion over 30–60 minutes |
| Generalised tonic-clonic (adjunctive) | Dose adjusted by specialist | IV infusion over 30–60 minutes |
- Administered as an intravenous infusion over 30–60 minutes — never as a rapid bolus injection
- The IV dose is the same as the established oral dose for patients switching between routes
- Dose titration is performed gradually — sudden large dose changes increase side effect risk
- Transition back to oral Lacosamide should occur as soon as clinically appropriate
Active Ingredient
| Ingredient | Strength per Vial |
|---|---|
| Lacosamide | 200mg / 20ml (10mg/ml) |
Who Should NOT Receive Lalap IV?
- Known allergy to Lacosamide or any component of the injection
- Known second or third degree atrioventricular (AV) heart block — Lacosamide affects cardiac conduction
- Severe hepatic impairment — use is not recommended
- Pregnancy — use only if clearly necessary after careful risk-benefit assessment by specialist
Consult the treating specialist before use in patients with: known cardiac conduction disorders, severe kidney disease, history of suicidal ideation, or those taking other medicines that affect cardiac conduction (e.g., beta-blockers, digoxin).
Side Effects
Common:
- Dizziness or unsteadiness — particularly during dose initiation or increases
- Headache or blurred or double vision (diplopia)
- Nausea or vomiting
- Fatigue or drowsiness
Serious — report to treating physician immediately:
- Cardiac conduction abnormalities — PR interval prolongation, atrial fibrillation or flutter — ECG monitoring required (یہ طبی ہنگامی صورتحال ہے)
- Severe dizziness, loss of coordination, or falls — dose-related and requires clinical assessment
- Suicidal ideation or behaviour — antiepileptic class risk; monitor for mood changes
- Severe allergic reaction — facial swelling, widespread rash, difficulty breathing
- Severe skin reactions — Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) — rare but life-threatening
Drug Interactions
| Medicine | Interaction |
|---|---|
| Beta-blockers / Digoxin / Calcium channel blockers | Additive cardiac conduction slowing — PR interval prolongation risk; ECG monitoring required |
| Other sodium channel antiepileptics (e.g., Carbamazepine, Phenytoin) | Possible additive sodium channel effects — monitor for increased side effects |
| Strong CYP2C9 / CYP3A4 inducers (e.g., Rifampicin, Carbamazepine) | May reduce Lacosamide blood levels — dose adjustment may be needed |
| Alcohol (شراب) | Increases CNS depression — dizziness and sedation worsened significantly |
Storage Instructions
- Store between 15–30°C away from direct sunlight and freezing
- Do not refrigerate or freeze the injection vial
- Use immediately once opened — discard any unused portion
- Keep out of reach of children (بچوں کی پہنچ سے دور رکھیں)
- Do not use after expiry date on the vial
Frequently Asked Questions (FAQs)
Q: Why is Lacosamide given intravenously instead of orally in hospital? The IV formulation is used when a patient cannot swallow oral medicines — such as during surgery, acute illness, or status epilepticus — delivering the same therapeutic dose directly into the bloodstream for immediate effect.
Q: Does Lalap IV affect the heart? Yes — Lacosamide can slow cardiac conduction and prolong the PR interval on ECG. An ECG is performed before and during IV treatment, and it is used with caution in patients with existing heart conduction disorders.
Q: Can Lacosamide be used alone or does it always need other epilepsy medicines? For partial-onset seizures in adults, Lacosamide can be used as monotherapy (alone) or alongside other antiepileptics — your neurologist will determine the most appropriate treatment approach for your seizure type.
Q: What should be monitored during Lalap IV treatment? ECG for cardiac conduction, liver function, kidney function, and neurological status are monitored during treatment — particularly during dose initiation, increases, or transition between IV and oral administration.
⚕️ Medical Disclaimer: This description is for general information only and does not replace professional medical advice. Lalap IV must only be administered by qualified healthcare professionals in a clinical setting. Never self-administer antiepileptic injections.
DRAP Registered | Prescription Required (Rx) | Hospital administration only — ECG monitoring required — never stop antiepileptic treatment without neurologist guidance
