​Nymphaea caerulea (Blue lotus)

Nymphaea caerulea (Blue lotus)

Product Name: Голубой лотос, Nymphaea caerulea, Blaue Lotosblume, Loto azul, Lotus bleu, اللوتس الأزرق, บัวหลวงสีฟ้า

Synonyms: Голубая нимфея, Синий лотос, Egyptian Blue Lotus, Sacred Blue Lily, Blaue Seerose, Loto egipcio azul, Nymphaea bleu sacré, زنبق أزرق مقدس, ดอกบัวศักดิ์สิทธิ์สีฟ้า

Parts used: flowers, petals, rhizomes, roots, seeds, petals.

Main indications for the use of Nymphaea caerulea: Neurasthenia, anxiety disorder, depressive episode, insomnia, spastic colitis, irritable bowel syndrome, stage I hypertensive disease, dysmenorrhea, neurogenic erectile dysfunction, anorgasmia, increased excitability, psychosomatic tachycardia.

Use of Nymphaea caerulea in mixtures and complexes: Multiple sclerosis, Alzheimer's disease, post-traumatic stress disorder, stage II hypertensive disease, chronic gastritis with increased secretion, anxiety disorders with compulsive component, climacteric syndrome, chronic fatigue syndrome, endometriosis, secondary impotence.

Pharmacological properties of Nymphaea caerulea: sedative, anxiolytic, antidepressant, antispasmodic, hypotensive, adaptogenic, aphrodisiac, anti-inflammatory, antioxidant, nootropic, mild analgesic.

Dosage of Pharmaceutical Forms — Nymphaea caerulea

Powder — Nymphaea caerulea

Indications (Powder): Neurasthenia, depressive episode, anxiety disorder, insomnia, increased nervous excitability, chronic fatigue syndrome, psychosomatic tachycardia, dysmenorrhea, neurogenic erectile dysfunction.

Standard Dosage (Powder): 1.5–2.0 grams of powder once a day, preferably in the first half of the day or 2 hours before bedtime depending on the purpose of intake. Taken with warm water or diluted fruit juice.

Enhanced Dosage (Powder): 3.0 grams of powder once a day for 7 days for acute episodes of anxiety, pronounced psychoemotional stress, climacteric disorders, and premenstrual syndrome.

Maximum Dosage (Powder): 4.0 grams once, only under specialist supervision. Used for acute anxiety states, resistant insomnia, and hysterical attacks.

Preventive Dosage (Powder): 1.0 gram every other day for 30 days. Recommended for patients with chronic fatigue syndrome, autonomic lability, and neuroendocrine disorders in premenopause. Repeat the course no more than once every 3 months.

Pediatric Dosage (Powder): Use is permissible from 12 years of age with a body weight of at least 40 kg. Single dose — 0.5 grams in the evening for increased anxiety or difficulty falling asleep. Use no more than 5 days in a row.

Contraindications (Powder): Individual intolerance. Contraindicated in pronounced hypotension, severe forms of depression with suicidal tendencies, and severe liver function disorders. No scientific data on contraindications during pregnancy, lactation, and in children under 12 years have been registered.

Side Effects (Powder): In rare cases, when the dosage is exceeded, dizziness, decreased blood pressure, slowed reaction, drowsiness, and nausea were observed.

Adjustment for Patient Body Weight (Powder): For body weight below 60 kg, the dosage is reduced by 20%. For body weight above 90 kg, an increase in dose by 20% is possible, but not exceeding the maximum permissible dose of 4.0 grams.

Preparation method (Powder): To prepare 100 grams of powder, 300 grams of fresh petals of Nymphaea caerulea are taken. The raw material is washed, air-dried, and placed in a dehydrator at a temperature of 45°C for 18 hours. After complete drying, the petals are ground into powder in a micromill to a finely dispersed fraction. Sieved through a sieve with a mesh diameter of 0.3 mm. Packaged in airtight light-proof bags.

Storage Conditions and Shelf Life (Powder): Store in tightly closed packaging, at a temperature of +5°C to +25°C, in a dark place, away from sources of moisture and electromagnetic radiation. Shelf life — 12 months. After opening, use within 30 days.

Extract — Nymphaea caerulea

Indications (Extract): Mild to moderate depressive episode, anxiety disorder, post-traumatic stress disorder, psychovegetative syndrome, erectile dysfunction, neuroendocrine climacteric syndrome, sleep disorders in somatic pathology.

Standard Dosage (Extract): Extract 1:5 — 15 drops (approximately 0.75 ml) 2 times a day, in the morning and 1 hour before bedtime. Diluted in 50 ml of water or non-concentrated juice. Duration of intake — 10–14 days.

Enhanced Dosage (Extract): Up to 30 drops (1.5 ml) 2 times a day, for pronounced sleep disorders, persistent anxiety, neurasthenia, and background pressure increase against the background of autonomic instability. Course — up to 10 days followed by a transition to the standard dose.

Maximum Dosage (Extract): Up to 40 drops (2 ml) 2 times a day. Used only for indications of therapy-resistant panic attacks, pronounced psychoemotional agitation, and sleep disorders in patients with post-traumatic syndrome. No more than 3 days in a row.

Preventive Dosage (Extract): 10 drops (0.5 ml) once a day in the evening. Used in patients with autonomic dystonia, premenstrual syndrome, labile blood pressure, and insomnia against the background of chronic fatigue. Course — 21 days, repeat no more than once every 3 months.

Pediatric Dosage (Extract): Used from 14 years with a body weight from 45 kg. Recommended dose — 5–7 drops once a day, course up to 5 days. Only under specialist supervision. Do not use in children under 14 years.

Contraindications (Extract): Individual sensitivity, severe bradycardia, pronounced arterial hypotension, epilepsy. No scientific data on contraindications during pregnancy, lactation, and in children under 14 years have been registered.

Side Effects (Extract): Decreased concentration, dizziness, short-term feeling of "fog" in the head are possible. In isolated cases — arterial hypotension when taken on an empty stomach.

Adjustment for Patient Body Weight (Extract): For body weight below 60 kg, reduce the dose by 25%. For body weight above 90 kg, the dosage can be increased by 20%, not exceeding the permissible limit of 2 ml per dose.

Preparation method (Extract): To obtain 100 ml of extract 1:5, 20 grams of dry petals of Nymphaea caerulea are taken and poured with 100 ml of 70% ethyl alcohol. Infuse in a dark container at a temperature of 22–25°C for 10 days, shaking periodically. Then filter through a paper filter. Store in airtight glass containers.

Storage Conditions and Shelf Life (Extract): Store in a cool, light-protected place at a temperature of +5–+20°C. Avoid contact with metal. Shelf life — up to 24 months. After opening, use within 60 days.

Alcohol-Based Tincture — Nymphaea caerulea

Indications (Tincture): Insomnia, anxiety, acute stress reactions, neurocirculatory dystonia, libido disorders, autonomic manifestations of climacteric syndrome, nocturnal tachycardia of psychogenic origin.

Standard Dosage (Tincture): 20 drops (1 ml) of tincture once a day, in the evening, 60 minutes before bedtime. Taken diluted in 30–50 ml of water. Course — 10 days.

Enhanced Dosage (Tincture): 25–30 drops (1.25–1.5 ml) once, 1 hour before bedtime for severe sleep disorders, acute episodes of anxiety, and severe psychosomatic reactions with tachycardia, hyperhidrosis, and muscle tension.

Maximum Dosage (Tincture): 40 drops (2 ml) once, no more than 3 days in a row. Used for pronounced panic states resistant to herbal sedative therapy. Do not allow repeated use within 24 hours.

Preventive Dosage (Tincture): 10–15 drops every other day for 3 weeks. Indicated for neurovegetative disorders in premenopausal women, asthenic forms of sleep disorders, and periods of professional emotional overstrain. Repeat course — after 3 months.

Pediatric Dosage (Tincture): Not used in children and adolescents under 16 years. For adolescents over 16 years with a weight of more than 50 kg, a single dose of 10 drops is permissible, course — no more than 3 days.

Contraindications (Tincture): Alcoholism, liver diseases in the stage of decompensation, pregnancy, lactation. Do not use together with benzodiazepines, antidepressants, and other CNS depressants. For pregnant and nursing women, data on contraindications have not been scientifically registered, but use is not recommended.

Side Effects (Tincture): Dizziness, headache, weakness, coordination disorders, and speech slowness are possible. When combined with alcohol, the sedative effect is enhanced and there is a risk of a sharp drop in blood pressure.

Adjustment for Patient Body Weight (Tincture): For body weight less than 60 kg, the dosage is reduced by 25%. For body weight over 90 kg, an increase in the standard dose by 20% is permissible, not exceeding the maximum single dose of 2 ml.

Preparation method (Tincture): To prepare 100 ml of alcohol tincture, 20 grams of dry petals of Nymphaea caerulea and 100 ml of 40% ethyl alcohol are used. The raw material is placed in an airtight glass container, infused for 10 days at a temperature of 20–25°C without access to light. After infusion, strain through filter paper; squeezing is not allowed. Store in light-proof containers.

Storage Conditions and Shelf Life (Tincture): Store in a cool dark place at a temperature of +5–+20°C, without access to sunlight and near sources of EMI. Shelf life — up to 18 months. After opening, use within 45 days.

Oil Infusion — Nymphaea caerulea

Indications (Oil Infusion): Chronic fatigue syndrome, anxiety-depressive disorders, neurosensory insomnia, spastic muscle pain, climacteric vegetative crises, anorgasmia, frigidity, dryness of the skin and mucous membranes against the background of neuroendocrine disorders.

Standard Dosage (Oil Infusion): Externally: 3–5 ml of infusion is rubbed into the skin in the area of the neck, occiput, and chest in the evening before bedtime for 7–10 minutes. Course — 10 days.

Aromatic baths: 10 ml per bath at 37°C, procedure duration — 15 minutes, every other day.

Enhanced Dosage (Oil Infusion): Externally: up to 10 ml per massage procedure on the areas of the back and collar zone for pronounced anxiety, sleep disorders, and psychosomatic pain.

Aromatherapy: 5 drops of infusion on an aroma pendant or fabric napkin, no more than 2 times a day.

Maximum Dosage (Oil Infusion): 15 ml per general massage session, once every 2 days, no more than 5 procedures. Only under specialist supervision for severe forms of anxiety-depressive disorders, decreased libido, and psychoemotional hyperactivation.

Preventive Dosage (Oil Infusion): 2 ml externally on the temples and occiput area 2 times a week. Aromatherapy — 3 drops on a napkin or in an aroma lamp once every 3 days. Suitable for premenopausal women, patients with episodic insomnia and a tendency to neurosensory hyperactivation.

Pediatric Dosage (Oil Infusion): External use is permissible from 10 years with a body weight of more than 30 kg. It is recommended to use no more than 1 ml for spot massage of the feet or wrists once a day for no more than 3 days in a row. Avoid contact with eyes and mucous membranes.

Contraindications (Oil Infusion): Individual intolerance, acute dermatoses, damage to the skin, eczema, psoriasis in the acute phase. Data on contraindications during pregnancy and lactation are absent; it is recommended to avoid use during this period.

Side Effects (Oil Infusion): Contact dermatitis, photosensitization, dizziness upon inhalation of concentrated vapors. In case of overdose — drowsiness, decreased concentration.

Adjustment for Patient Body Weight (Oil Infusion): For patients with body weight less than 50 kg — dose reduction by 30%. For body weight above 80 kg, an increase in dose by 25% is permissible.

Preparation method (Oil Infusion): To obtain 100 grams of infusion, 25 grams of dry petals of Nymphaea caerulea must be taken and poured with 100 ml of cold refined jojoba oil or grapeseed oil. The mixture is infused in a dark place at a temperature of 30–35°C for 14 days. Shaken periodically. After infusion, filter through cloth; squeezing is not performed. Store in a dark glass bottle.

Storage Conditions and Shelf Life (Oil Infusion): Store in a tightly closed dark glass container at a temperature of +5 to +20°C, away from sunlight and heating devices. Shelf life — 12 months. After opening, use within 60 days.

Essential Oil (Absolute) — Nymphaea caerulea

Indications (Essential Oil / Absolute): Psychoemotional tension, anxiety-depressive disorders, sleep disorders, sexual dysfunction, anorgasmia, frigidity, neurovegetative dystonia with hypertensive component, panic attacks, climacteric psychosomatic disorders.

Standard Dosage (Essential Oil / Absolute): Aromatherapy: 2 drops in an aroma lamp with a volume of 100 ml, session duration — 20 minutes.

Massage: 2 drops per 10 ml of carrier oil (jojoba, almond, or grapeseed).

Aroma pendant: 1 drop on a clay or ceramic item. No more than once a day.

Enhanced Dosage (Essential Oil / Absolute): Aromatherapy: up to 4 drops in an aroma lamp with a volume of 150 ml for 30 minutes.

Massage: 4 drops per 15 ml of carrier oil — for massage of the collar zone and feet for pronounced psychosomatic symptoms.

Used in conditions of increased anxiety, emotional exhaustion, and libido disorders.

Maximum Dosage (Essential Oil / Absolute): 6 drops in an aroma lamp or 5 drops per 10 ml of oil — exclusively in professional aromatherapy under supervision. No more than one session in 48 hours.

Indicated for severe episodes of panic, asthenic depression, and psychogenic erectile dysfunction.

Preventive Dosage (Essential Oil / Absolute): 1 drop in an aroma pendant 2 times a week.

Aromatic bath: 2 drops per emulsifier (honey or cream), dissolve in a warm bath once every 5 days.

Suitable for patients with increased sensitivity to stress, premenopausal women, and those with episodic insomnia and decreased libido.

Pediatric Dosage (Essential Oil / Absolute): Use in children under 12 years is not recommended.

From 12 years: 1 drop in an aroma lamp with a volume of no more than 100 ml, once every 3 days for emotional overexcitation and sleep disorders. Do not use in massage and on the skin.

Contraindications (Essential Oil / Absolute): Individual intolerance, hypotension, epilepsy, pregnancy, breastfeeding.

Do not use in persons with seizure activity. Contraindicated in acute laryngitis and bronchial asthma.

For pregnant women, nursing mothers, and children under 12 years, the contraindication has not been scientifically registered, but use is not recommended due to the high activity of the essential component.

Side Effects (Essential Oil / Absolute): Dizziness, drowsiness, decreased attention; in case of overdose — nausea, clouding of consciousness, exacerbation of migraine.

Adjustment for Patient Body Weight (Essential Oil / Absolute): Patients up to 50 kg: dosage is reduced by 30%.

Patients over 80 kg: individual dose adjustment of 20% is possible with reduced sensitivity to essential compositions.

Preparation method (Essential Oil / Absolute): To obtain 100 grams of absolute essential oil, at least 12 kg of fresh flowers of Nymphaea caerulea are required. The raw material is subjected to maceration in hexane for 48 hours at a temperature of 18–22°C. After extraction, the solvent is evaporated under vacuum to obtain a concrete wax. The concrete is then triturated with ethanol and cooled to –20°C for 48 hours. After filtration, the ethanol is removed on a rotary evaporator at a temperature not exceeding 35°C. The resulting absolute is filtered and stored in airtight dark glass bottles.

Storage Conditions and Shelf Life (Essential Oil / Absolute): Store in hermetically sealed dark glass bottles at a temperature of +4 to +10°C, away from sources of light, heat, and electromagnetic radiation. Shelf life — up to 3 years under appropriate conditions. After opening, use within 90 days.

Toxicity and Biosafety of Nymphaea caerulea

According to modern pharmacological studies, extracts of Nymphaea caerulea have low acute toxicity and are well tolerated when used in therapeutic dosages. In studies on laboratory animals (mice, rats), it was established that the aqueous-alcoholic extract of Nymphaea caerulea upon oral administration at a dose of up to 2000 mg/kg body weight did not cause signs of toxicity, lethal outcomes, or behavioral disorders, which allows it to be classified as a substance with a very low level of acute toxicity.

In an experiment conducted according to the OECD 425 protocol, the LD₅₀ in mice and rats upon oral administration of a standardized extract of Nymphaea caerulea was more than 2000 mg/kg, which corresponds to class IV hazard (low-toxicity substances).

Good skin tolerance of oil infusions and absolutes based on Nymphaea caerulea was also noted, with the absence of irritant or sensitizing effects on the skin of experimental animals.

At the same time, prolonged use in high doses (more than 10 days in enhanced mode) can cause pronounced sedation, decreased blood pressure, psychomotor retardation, and dizziness. No data on mutagenicity, carcinogenicity, and embryotoxicity of Nymphaea caerulea have been registered in clinical settings.

Reference: https://www.ncbi.nlm.nih.gov/p...

Pharmacodynamics — Nymphaea caerulea

The pharmacodynamic activity of Nymphaea caerulea is due to the presence of biologically active substances — aporphine alkaloids, flavonoids (including quercetin and kaempferol), as well as glycosides and essential oils. These compounds realize predominantly central and vegetotropic action. Alkaloids exhibit affinity for receptors of the dopaminergic and serotonergic systems, modulating the psychoemotional sphere. A mild anxiolytic and sedative effect is noted, realized through interaction with the GABA receptor system, which is confirmed by the observed decrease in motor activity in models of anxiety in animals.

Flavonoids of Nymphaea caerulea demonstrate antioxidant and vasomodulatory action at the systemic level, stabilizing capillary permeability and reducing the activity of pro-inflammatory cytokines. There is evidence of the ability of extracts to suppress the activity of monoamine oxidase (MAO), which indirectly indicates potential neuromodulatory activity and effects on mood. An effect on the autonomic regulation of the cardiovascular system has also been identified through central sedation, mild hypotension, and antispastic action.

External forms exhibit peripheral relaxing and vasodilatory action, and with inhalation exposure, essential components exert a rapid sedative and modulating effect through olfactory receptors and the limbic system.

Reference: https://www.ncbi.nlm.nih.gov/p...

Pharmacokinetics — Nymphaea caerulea

The pharmacokinetic features of Nymphaea caerulea have been studied fragmentarily. It is known that with oral intake of powders and extracts, the main absorption of active components (alkaloids and flavonoids) occurs in the small intestine. Flavonoids are partially subjected to transformation by the intestinal microbiota, then metabolized in the liver with the formation of sulfated and glucuronidated conjugates. Aporphine alkaloids undergo hepatic transformation with the formation of hydroxylated metabolites.

With transdermal use (oil forms and infusions), the absorption of active substances is limited to the surface layer of the skin, however, under conditions of heat and massage, systemic bioavailability is possible. Essential components of the absolute are able to penetrate the skin and mucous membranes, especially upon inhalation, bypassing the phase of primary metabolism in the liver, which accelerates their central action.

Excretion of metabolites occurs primarily through the kidneys (urine) and partially with bile. In insignificant amounts, volatile substances are excreted through the lungs. No data on accumulation in tissues at therapeutic doses have been recorded. Bioavailability and kinetics depend on the form of the drug: liquid extracts show a faster onset of action, powders — more prolonged.

Reference: https://www.ncbi.nlm.nih.gov/p...

Mechanisms of Action and Scientific Rationale — Nymphaea caerulea

The pharmacological activity of Nymphaea caerulea is associated with the presence of alkaloids (especially nuciferine) and flavonoids, which act on various receptor and enzyme targets. Studies show that aporphine alkaloids interact with dopamine (D2) and serotonin (5-HT2A) receptors, exerting anxiolytic and psychosedative effects. In parallel, flavonoids, including kaempferol and quercetin, demonstrate inhibitory effects on cyclooxygenase (COX-2) and lipoxygenase (LOX) pathways, which determines the anti-inflammatory profile of action.

Additionally, flavonoid fractions modulate NF-κB and MAPK signaling cascades, reduce the expression of pro-inflammatory cytokines (TNF-α, IL-6), and activate antioxidant systems (for example, SOD and catalase). Alkaloids also presumably affect monoamine metabolism through inhibition of MAO-A, contributing to the normalization of neurotransmitter balance in the CNS. At the level of peripheral tissues, effects of vasodilation, regulation of vascular tone, and endothelial protection have been described.

References: https://www.ncbi.nlm.nih.gov/p...; https://pubchem.ncbi.nlm.nih.g...

Synergy — Nymphaea caerulea

Pharmacological synergy of Nymphaea caerulea is observed in combination with plants containing flavonoids, terpenoids, and aromatic aldehydes. In combination with Melissa officinalis, Passiflora incarnata, and Valeriana officinalis, potentiation of sedative and anxiolytic action is noted through co-activation of GABA receptors and inhibition of monoamine reuptake. In combination with phenolic adaptogens, such as Rhodiola rosea, complementation of antioxidant and neuroprotective action is observed. Essential components of Nymphaea caerulea enhance the aromatherapeutic effect of compositions based on lavender and ylang-ylang oils through modulation of limbic regulation.

References: https://www.ncbi.nlm.nih.gov/p...; https://www.sciencedirect.com/...

Geography of Use and Traditional Medicine — Nymphaea caerulea

Blue lotus (Nymphaea caerulea), also known as the Egyptian blue water lily, has an ancient and extensive history of use in various regions of Northeast Africa, South and Southeast Asia. The earliest archaeobotanical and iconographic data record the use of the plant for ritual and medical purposes in Ancient Egypt around 1500 BC. Flowers of Nymphaea caerulea are depicted on frescoes, sarcophagi, and reliefs of Luxor and Karnak, often in the hands of pharaohs, priests, and gods, as a symbol of enlightenment, renewal, and connection between worlds. The plant was considered sacred, associated with the sunrise and resurrection, symbolizing cycles of rebirth. It was used in commemoration rituals, as part of incense and oils, and as an element of fumigation in temples.

In the ethnomedical practice of the inhabitants of the Nile Valley, the plant was used in the form of infusions and smoke inhalations to induce dreams and trance states. In some traditions, petals of Nymphaea caerulea were used to prepare drinks intended for inducing emotional release, as well as a mild means of ritual purification. Use also included wine macerates, which were used in mystery ceremonies to sharpen perception and facilitate entry into meditative states.

In the culture of ethnic groups of East and South Africa, including the Zulu and Sotho, the plant was considered a "flower of oblivion" and was used by shamans and healers in rituals of expelling fear, obsessive memories, and as protection from evil spirits. In a number of tribes, the plant was included in smoking mixtures used in meditative practices and night ceremonies.

In Thailand and Cambodia, Nymphaea caerulea was used in traditional medicine in the form of decoctions and external compresses as a cooling and relaxing agent. Within the framework of folk rituals, the lotus was used in the form of garlands and offerings to the spirits of the area, as well as in the form of aromatic oils in Buddhist rites.

In Tibetan and Indian traditions, the plant was associated with the sacred symbol of awakened consciousness, however, the actual use of Nymphaea caerulea as a pharmacological agent in these regions is recorded fragmentarily and has not become widespread, in contrast to the white and pink representatives of the genus.

In non-medical use, the blue lotus played a role in divinatory and purifying practices. It was included in herbal amulets, burned on coals in rituals of expelling negative energy, and was also considered a plant that enhances "inner vision." In some Southeast Asian traditions, its dried petals were placed under the pillow to induce dreams and for symbolic communication with the deceased.

Thus, Nymphaea caerulea occupies a unique place in the ethnomedical and sacred practice of the peoples of Egypt, East Africa, and part of Southeast Asia, combining pharmacological, spiritual, and ritual significance.