• Nervous System: Neurasthenia, nervous exhaustion, insomnia, overwork states [Hale, Clarke].
• Reproductive System: Sexual weakness, spermatorrhoea, impotence from nervous strain [Hale].
• Cardiovascular: Cardiac debility from prolonged illness or nervous prostration [Boericke].
• Endocrine Regulation: Especially in reproductive hormone balance [Clarke].
• General Vitality: Convalescence from exhausting diseases, influenza, typhoid [Hale].

• Rest and avoidance of mental strain [Hale].
• Nutritive support and regular meals [Clarke].
• Warmth and gentle care in convalescence.

• Overwork, both mental and sexual [Hale].
• Loss of sleep, especially chronic [Clarke].
• Emotional strain or grief leading to nervous breakdown.

The mental state of Avena sativa is marked by a dull, tired, and apathetic mood, arising from long-standing overwork or illness [Clarke]. The patient feels worn-out in mind and body, unable to summon enthusiasm or energy. Memory is often impaired, and concentration becomes difficult, as if the brain were starved of vitality [Hale]. There is a tendency to irritability, especially when pressed to mental effort, and in extreme cases, indifference to surroundings. In some, anxiety about their inability to perform is prominent.

Headache from prolonged mental exertion is a keynote [Hale]. This may be a dull, heavy ache across the forehead, sometimes extending into the occiput, and is often accompanied by a sense of mental fatigue. Headaches may be worse after sexual excess or loss of sleep, reflecting depletion of nervous reserves.

No significant proving symptoms; however, patients in states requiring Avena may complain of blurred vision from exhaustion [Clarke].

No characteristic proving symptoms recorded.

No proving symptoms recorded.

Pale, drawn expression in chronic overwork; dark circles under eyes in insomnia and sexual exhaustion [Clarke].

Dry mouth and lips in states of nervous tension; sometimes a bitter taste in convalescence from fever [Hale].

Occasional dryness noted in nervous debility; more a symptom of systemic depletion than local disease.

Loss of appetite common in nervous exhaustion [Clarke]. There may be nausea when attempting to work or read after fatigue. Patients often report craving for simple, easily digestible food.

No characteristic symptoms, except occasional flatulence in convalescence.

May be increased in frequency in states of nervous irritability, particularly in sexual debility [Hale].

Marked action in cases of sexual weakness from masturbation, sexual excess, or overwork [Hale]. Indicated in spermatorrhoea, emissions without dreams, impotence, and general lack of sexual power from nerve depletion. Often used as a restorative in post-gonorrhoeal debility.

Beneficial in nervous exhaustion associated with menstrual irregularity or functional infertility [Clarke]. Occasionally indicated in post-partum debility when mental and physical fatigue are marked.

Breathlessness in convalescence, more from nervous exhaustion than pulmonary pathology.

Cardiac weakness with nervous palpitation, especially after influenza or prolonged illness [Boericke].

Palpitation from nervous strain or sexual excess; may be accompanied by sighing respiration [Hale].

Weakness in the lumbar spine in cases of sexual debility [Hale].

Generalised muscular weakness and lassitude; trembling after slight exertion.

No characteristic eruptions, but general pallor and unhealthy tone in chronic depletion states.

One of the keynotes of Avena sativa is its power to induce natural, restful sleep without narcotic after-effects [Hale]. Insomnia from nervous strain, worry, overwork, or debility responds well, especially when associated with inability to switch off the mind despite fatigue.

Not characteristic; sleep, when obtained, tends to be deep and restorative.

Useful in post-febrile convalescence when patient is left nervously prostrated.

No peculiar cravings; more a loss of appetite from exhaustion.

Suited to patients debilitated from mental overwork, sexual excess, chronic illness, or acute fevers. Acts best in nervous, sensitive constitutions that have been run down by prolonged strain [Hale, Clarke].

• Coffea cruda – Insomnia from mental excitement; Coffea is acute and restless, Avena is for chronic nervous exhaustion.
• Passiflora incarnata – Sleep remedy, but more for acute nervous irritation; Avena is nutritive and restorative.
• Damiana – Sexual weakness, but Damiana is more stimulating; Avena restores vitality without over-excitation.
• Selenium – Sexual debility with mental symptoms, but Selenium has more marked memory loss and irritability.

• Complementary: Nux vomica, Ignatia, Kali phosphoricum.
• Antidotes: Coffee, alcohol (for insomnia).
• Follows well: After Kali phosphoricum in neurasthenia.

• Excellent in recovery from influenza, pneumonia, typhoid, or other exhausting diseases.
• Non-habit-forming sleep aid in nervous insomnia.
• As a tonic in cases of sexual neurasthenia, often in conjunction with good nutrition and lifestyle changes.

Mind:

• Ailments from overwork
• Ailments from sexual excess
• Indifference, apathy

Head:

• Headache from mental exertion
• Headache from loss of sleep

Male:

• Sexual weakness from masturbation
• Impotence from nervous exhaustion

Generalities:

• Debility from acute disease
• Weakness from loss of sleep
• Nervous prostration

Sleep:

• Sleeplessness from worry
• Sleeplessness from overwork

Hale E.M. – New Remedies: insomnia, sexual exhaustion, nervous debility.

Clarke J.H. – Dictionary: convalescence, nervous system, sexual weakness.

Boericke W. – Pocket Manual: cardiac weakness, nerve tonic.

Allen T.F. – Encyclopedia: clinical applications in exhaustion states.

Hughes R. – Pharmacodynamics: nutritive and sedative effects.

Farrington E.A. – Clinical Materia Medica: role in neurasthenia.

Nash E.B. – Leaders: as a restorative remedy.

Dewey W.A. – Practical Therapeutics: insomnia in neurasthenics.

Kent J.T. – Lectures: comparison with other nerve tonics.

Boger C.M. – Synoptic Key: general prostration indications.