Karaja (Karanja (Naktamala, Karaja, Chirabilwaka))

Properties

Anti-inflammatory, Antimicrobial, Anti-hyperglycemic, Antioxidant, Wound healing

Dosage

Karanja Seed Powder: 1-3 grams once or twice daily with water or 1-2 teaspoons. Karanja Oil (Topical Use): Apply 3-10 drops to the affected area 1-2 times daily. Karanja Leaf Decoction: Boil 5-7 fresh leaves in water, filter, and drink 100-150 ml of the decoction daily. Oral decoction: 3–6 g leaf powder simmered in 150 ml water, reduced to 50 ml—take 2–3 times/day. Tincture: 10–20 drops in warm water post-meals. Decoction of bark and leaves: 10-20 ml.

Classical attributes

• Rasa: Kashaya (Astringent), Tikta (Bitter)
• Virya: ["Ushna (Heating)"]
• Vipaka: ["Katu (Pungent)"]

Benefits

• Kushtahara (Relieves skin diseases)
• Vranaropana (Promotes wound healing)
• Krimihara (Antimicrobial)

Traditional uses

• Eczema
• Psoriasis
• Ulcers
• Skin infections

Dosha effects

• vata: balancing
• kapha: balancing
• pitta: balancing

Preparation methods

• Karanja Oil: Extracted from the seeds through expeller pressing, cold pressing, or solvent extraction.
• Powder: Dried Karanja seeds or leaves ground into a fine powder.
• Decoction: Boiling the bark or leaves in water to extract their medicinal properties.
• Paste: Karanja powder can be mixed with water or honey to form a paste for topical application.
• Tincture: Bark extract used for systemic use.

Contraindications

• It may cause skin irritation or contact dermatitis in sensitive individuals. A patch test is recommended before extensive application.
• Internal use can cause mild gastrointestinal discomfort like nausea or diarrhea if taken in excess.
• Prolonged high-dose oral use may lead to liver enzyme elevations; therefore, liver function should be monitored.
• Avoid internal use in individuals with compromised liver function.
• Contraindicated in open wounds with active bleeding (delay use until clotting) and severe peptic ulcers, as bark tannins may cause irritation.
• Use cautiously in severe Pitta disorders like ulcerative colitis or intense gastritis.
• Internal use should be avoided during pregnancy due to insufficient human data. External massage oil may be okay with low concentrations.
• During breastfeeding, use cautiously and consult a practitioner.
• Potential potentiation of anticoagulants (e.g., warfarin) due to flavonoid effects on platelet aggregation. Always inform your healthcare provider about herbal supplements to avoid unintended interactions.
• Children under five years should only have topical applications post-professional advice.
• Prolonged or excessive internal use can cause digestive discomfort due to its potency and heating quality.
• Be cautious of adulterated oils. Authentic Karanja oil has a pungent, peppery aroma and slight reddish hue.

Side effects

• Skin Irritation: May occur if undiluted oil is applied to sensitive or broken skin.
• Allergic Reactions: Skin rashes, redness, and itching are possible in sensitive individuals.
• Pitta Imbalance: Internal use may aggravate heat-related conditions like heartburn and rashes.
• Pregnancy and Breastfeeding: Avoid large oral doses during pregnancy and breastfeeding. Topical use is generally considered safe, but a patch test is recommended.
• Liver Health: Avoid internal use in individuals with compromised liver function.
• Gastrointestinal Discomfort: May cause nausea and bloating if taken in excess.

Interactions

• Anticoagulants: Potential synergism with anticoagulants, so monitor clotting if using warfarin-like drugs.
• Diabetes Medications: May lower blood glucose levels, so individuals with diabetes should use it with caution.
• Blood Pressure Medications: May interact with medications for blood pressure; consult a healthcare provider before use.

Clinical evidence

Emerging research supports the traditional uses of Pongamia pinnata, indicating its potential anti-inflammatory, anti-diabetic, and antimicrobial properties. Animal studies and in vitro experiments provide preliminary evidence, but further clinical trials are needed to validate these findings in humans.

Ayurvedic karmas

• Kushtahara (Relieves skin diseases)
• Vranaropana (Promotes wound healing)
• Krimihara (Antimicrobial)

Classical clinical indications

• Eczema
• Psoriasis
• Ulcers
• Skin infections