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Andrographis paniculata vs L-Theanine — Which Should You Take?

Andrographis paniculata

herbs

Typically £8–£25/month

L-Theanine

nootropics

Typically £8–£25/month
Feature
Andrographis paniculata
L-Theanine
Typical Dosage
300-400 mg daily of standardised extract (containing 4-6% andrographolides)
100-200mg daily
Best Form
Standardised dry extract powder
L-Theanine (Suntheanine)
Key Benefits
5 listed
5 listed
Evidence Rating
★★★★
★★★★
Best Time
With meals to enhance absorption and reduce gastrointestinal irritation
With caffeine for focus, or evening for relaxation
Upper Limit
1000-1200 mg daily in divided doses
400mg daily
Side Effects
3 noted
3 noted

Andrographis paniculata Benefits

Immune system support and enhanced immune response
Anti-inflammatory effects on respiratory and gastrointestinal tissues
Potential reduction in upper respiratory infection duration and severity
Antioxidant activity from andrographolide compounds
Traditional use for fever and general wellness support

L-Theanine Benefits

Calm focus without sedation
Reduces caffeine jitters when combined
Promotes alpha brain waves (relaxed alertness)
May improve sleep quality
Anxiety reduction

Andrographis paniculata Side Effects

Gastrointestinal upset including nausea, diarrhoea, and abdominal pain (common at higher doses)
Allergic reactions including rash and anaphylaxis (rare but documented)
Bitter taste and appetite suppression

L-Theanine Side Effects

Very few — one of the safest supplements
Mild drowsiness at high doses
May lower blood pressure slightly

Can You Take Andrographis paniculata and L-Theanine Together?

In most cases, Andrographis paniculata and L-Theanine can be taken together safely. However, always check the interactions section of each supplement and consult a healthcare professional if you take medication or have existing health conditions.

Andrographis paniculata: May potentiate effects of immunosuppressant medications; avoid concurrent use without medical supervision

Andrographis paniculata: Potential interaction with antidiabetic drugs due to possible blood glucose-lowering effects

L-Theanine: Caffeine — synergistic (the classic nootropic stack)

L-Theanine: Blood pressure medications — additive hypotensive effect

Which Should You Choose?

Choose Andrographis paniculata if your primary goal is: immune system support and enhanced immune response. Choose L-Theanine if your primary goal is: calm focus without sedation.

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Frequently Asked Questions

Is Andrographis paniculata better than L-Theanine?

It depends on your goals. Andrographis paniculata and L-Theanine serve different purposes and are often taken together.

Can I take Andrographis paniculata and L-Theanine together?

In most cases, yes. Andrographis paniculata and L-Theanine can be taken together safely. However, always check for specific interactions and consult a healthcare professional if you take medication.

What is the best time to take Andrographis paniculata?

With meals to enhance absorption and reduce gastrointestinal irritation

What is the best time to take L-Theanine?

With caffeine for focus, or evening for relaxation

What are the side effects of Andrographis paniculata?

Gastrointestinal upset including nausea, diarrhoea, and abdominal pain (common at higher doses). Allergic reactions including rash and anaphylaxis (rare but documented). Bitter taste and appetite suppression.

What are the side effects of L-Theanine?

Very few — one of the safest supplements. Mild drowsiness at high doses. May lower blood pressure slightly.

How We Compare Supplements

This comparison is based on published clinical research, peer-reviewed studies from PubMed, and established nutritional science. We evaluate dosages based on clinically-effective amounts, not manufacturer recommendations. Benefits listed have at least moderate evidence from human studies. When evidence is limited or conflicting, we note this.

Disclaimer: This comparison is for educational purposes only and is not medical advice. Always consult a qualified healthcare professional before starting any supplement, especially if you take medication or have existing health conditions.

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