Combination therapy in epilepsy: what, when, how and what not!

Area of Science:

• Neurology
• Pharmacology

Background:

• Epilepsy treatment often requires combination therapy when monotherapy fails.
• Over 14 new antiepileptic drugs (AEDs) have been introduced for adjunctive treatment of refractory epilepsy in the last two decades.
• There is a renewed interest in combination therapy for epilepsy management.

Purpose of the Study:

• To reevaluate the role of combination therapy in epilepsy treatment.
• To assess the existing evidence for rational polytherapy in epilepsy.
• To identify the need for robust clinical guidance on combining antiepileptic drugs (AEDs).

Main Methods:

• Review of experimental and clinical evidence supporting combination therapy for epilepsy.
• Analysis of current practices and recommendations for combining antiepileptic drugs (AEDs).

Main Results:

• Evidence supporting "rational polytherapy" in epilepsy is limited.
• The combination of sodium valproate and lamotrigine is one of the few studied combinations showing synergistic effects.
• Robust evidence to guide clinicians on the optimal use of combination antiepileptic drug (AED) therapy is lacking.

Conclusions:

• Current clinical practice for combining antiepileptic drugs (AEDs) in epilepsy is largely empirical.
• There is a significant need for evidence-based guidelines to support rational polytherapy in epilepsy management.
• Further research is required to establish effective and safe combination strategies for refractory epilepsy.