Herbsmith Rx Peony Calm Shen Herbal Formula for Horses

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Recommended by holistic veterinarians, Herbsmith Rx Peony Calm Shen is a Traditional Chinese Veterinary Medicine (TCVM) herbal formula that calms the Heart Shen, nourishes Heart Blood and Yin, soothes the Liver, and resolves Liver Qi stagnation to address the combination of anxiety, fearfulness, irritability, and aggression that arises when Liver Qi stagnation affects the Heart Shen. In TCVM's Five Element framework, the Liver (Wood) nourishes and controls the Heart (Fire); when Liver Qi stagnates from stress, chronic frustration, or toxic burden, the resulting disharmony frequently overflows into the Heart, disturbing the Shen and producing the characteristic combination of Liver-driven irritability and aggression alongside Heart-driven anxiety and fearfulness. Peony Calm Shen addresses both the Liver stagnation and the resulting Heart Shen disturbance, and goes further than Bupleurum Calm Spirit by deeply nourishing the Heart Blood and Yin that anchor the Shen, making it particularly suited to horses whose anxiety and reactivity have an underlying deficiency component alongside the stagnation pattern. This formula is well-suited to the spooky, irritable horse that is easily frightened, difficult to manage, aggressive under pressure, or anxious in new or stressful situations. Available in traditional powder (500g, 900g, 1200g) and Flax Plus (30-day and 60-day supply); a six-tablespoon scoop is included with the Flax Plus format. Dosing varies by body weight and health condition; your authorizing veterinarian will provide specific guidance. Not for use in pregnant mares.

VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation

What It Supports

  • Anxiety and fearfulness from Heart Shen disturbance: Addresses the disturbed Heart Shen underlying anxiety, fearfulness, and spooky behavior; a rich assembly of Heart-nourishing herbs including Suan Zao Ren, Bai Zi Ren, Fu Shen, Ye Jiao Teng, and Yuan Zhi calms and anchors the Shen, nourishes the Heart Blood and Yin needed to keep it settled, and opens the Heart's orifices to restore mental clarity and groundedness.
  • Irritability and aggression from Liver Qi stagnation: Addresses the Liver Qi stagnation underlying irritability, frustration, and aggressive behavior; Chai Hu, Bai Shao, Xiang Fu Zi, and Qing Pi soothe the Liver, spread constrained Qi, and relieve the Liver-driven reactive irritability that manifests when Liver Qi cannot move freely.
  • Combined Liver-Heart disharmony from Wood affecting Fire: Directly addresses the clinically common Five Element pathway in which Liver Qi stagnation (Wood) overacts on the Heart (Fire), producing the coexisting pattern of Liver-driven irritability and aggression alongside Heart-driven anxiety and fearfulness; the formula resolves both the root Liver stagnation and the downstream Heart Shen disturbance it generates.
  • Heart Blood and Yin deficiency underlying Shen instability: Provides a deep nourishing foundation for the Heart Shen through multiple Yin and Blood tonic herbs including Mai Men Dong, Tian Men Dong, Xuan Shen, Wu Wei Zi, Dang Gui Tou, and Dan Shen; this deep nourishing strategy distinguishes Peony Calm Shen from formulas that address the Liver-Heart disharmony primarily through moving and draining, making it appropriate when the horse's anxiety and reactivity have an underlying deficiency component.

TCVM Principles

  • Primary action: Calm Heart Shen, nourish Heart Blood and Yin, soothe the Liver and spread Liver Qi, invigorate Heart Blood, resolve Liver Qi stagnation, and address the Wood-overacting-on-Fire pathway that produces the combined pattern of Liver-driven irritability and Heart-driven anxiety.
  • Approach: In TCVM, anxiety is the negative emotion of a disturbed Heart Shen, and irritability and aggression are the negative emotions of Liver imbalance. Liver Qi stagnation, which arises from chronic stress, frustration, and toxic burden, is among the most commonly encountered disharmonies in modern horses. When Liver Qi stagnates chronically, it frequently overflows into the Heart through the Wood-Fire Five Element relationship, disturbing the Heart Shen and adding anxiety and fearfulness to the irritability and aggression already driven by the Liver imbalance. The Heart Shen's stability depends on adequate Heart Blood and Yin to anchor it; when Liver Qi stagnation persists and depletes Blood and Yin over time, the Shen becomes increasingly unanchored and reactive. Peony Calm Shen addresses this complete picture: it soothes the Liver and spreads stagnant Qi at the root, anchors and calms the disturbed Heart Shen, and nourishes the Heart Blood and Yin that give the Shen its stable foundation. The result is a horse that is less reactive, less fearful, less irritable, and more mentally settled without sedation. Not for use in pregnant mares.

Available Forms

  • 500g Traditional Powder: Mix into grain twice daily for the first 20 days, then once daily. If the horse is reluctant to eat herbs, begin with small amounts in grain to acquaint the horse with the taste, or consider the Flax Plus version.
  • 900g Traditional Powder: Larger supply for extended treatment courses or multi-horse households.
  • 1200g Traditional Powder: Bulk size for consistent long-term daily use.
  • Flax Plus - 30-Day Supply: Herbal formula blended with ground flaxseed for ease of administration; six-tablespoon scoop included. Administer one scoop twice daily for the first 20 days, then one scoop daily.
  • Flax Plus - 60-Day Supply: Extended Flax Plus supply for continued long-term use.

Ingredients

Active ingredients: Bai Shao Yao (Paeonia lactiflora) - White Peony root; Bai Zi Ren (Platycladus orientalis) - Biota seed; Chai Hu (Bupleurum chinense) - Bupleurum root; Dan Shen (Salvia miltiorrhiza) - Salvia root; Dang Gui Tou (Angelica sinensis, head) - Chinese Angelica root head; Fu Shen (Poria cocos, root-bound) - Heart Poria; Mai Men Dong (Ophiopogon japonicus) - Ophiopogon tuber; Mu Li Shu (Ostrea gigas, calcined) - Calcined Oyster shell; Qing Pi (Citrus reticulata, immature) - Green Tangerine peel; Suan Zao Ren (Ziziphus jujuba var. spinosa) - Sour Jujube seed; Tian Men Dong (Asparagus cochinchinensis) - Asparagus tuber; Wu Wei Zi (Schisandra chinensis) - Schisandra fruit; Xiang Fu Zi (Cyperus rotundus) - Cyperus rhizome; Xuan Shen (Scrophularia ningpoensis) - Scrophularia root; Ye Jiao Teng (Polygonum multiflorum, vine) - Polygonum multiflorum vine; Yuan Zhi (Polygala tenuifolia) - Polygala root.

Inactive ingredients (Flax Plus only): Ground Flax Seed. Traditional Powder contains no inactive ingredients.

VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation

Active Ingredient TCVM Actions

Peony Calm Shen is a sixteen-herb formula organized around four complementary strategies: nourishing Heart Blood and Yin to anchor the Shen, calming and opening the Heart's orifices to settle the Shen, soothing the Liver and spreading Liver Qi to resolve the root stagnation, and invigorating Heart Blood to ensure nourishment circulates to the Heart:

  • Bai Shao Yao (Paeonia lactiflora) - White Peony root: The formula namesake; nourishes Liver Blood and Yin, calms and softens Liver Yang, relaxes constraint-driven tension in the musculature and sinews, and preserves Yin; addresses the Liver Blood deficiency component that underlies Liver Yang rising and Liver Qi constraint, working alongside Chai Hu to both nourish the Liver and smooth its Qi simultaneously.
  • Bai Zi Ren (Platycladus orientalis) - Biota seed: Nourishes Heart Blood, calms the Heart, and settles the Shen; one of the classical Heart Blood-nourishing and Shen-calming seeds used for anxiety, fearfulness, and restlessness from Heart Blood deficiency; the seed's moistening and nourishing nature makes it especially appropriate for horses with a dry, Blood-deficient presentation alongside their Shen disturbance.
  • Chai Hu (Bupleurum chinense) - Bupleurum root: Spreads constrained Liver Qi, resolves Shao Yang constraint, and releases Heat from the Liver channel; the formula's primary Liver Qi-moving herb, addressing the root Liver Qi stagnation that, through the Wood-Fire pathway, generates the downstream Heart Shen disturbance; ensures the Liver Qi flows freely so it cannot continue to disturb the Heart Shen.
  • Dan Shen (Salvia miltiorrhiza) - Salvia root: Invigorates Blood, clears Heat from the Heart, cools the Blood, nourishes the Heart, and calms the Shen; the formula's primary Heart Blood-invigorating herb, clearing the Blood stasis and Heat that accumulate in the Heart when Liver Qi stagnation persists and generates Heat; also directly nourishes and calms the Heart Shen, making it one of the most important cardiovascular and Shen-supporting herbs in the formula.
  • Dang Gui Tou (Angelica sinensis, head) - Chinese Angelica root head: The head of the Angelica root specifically tonifies Blood rather than moves it; nourishes and tonifies Liver and Heart Blood to restore the Blood deficiency component underlying both Liver Yang rising and Heart Shen disturbance; works alongside Bai Shao, Suan Zao Ren, and Dan Shen to rebuild the Blood foundation on which the Shen depends for stability.
  • Fu Shen (Poria cocos, root-bound) - Heart Poria: The Poria mushroom growing around the root of the pine tree; has a stronger Heart-calming and Shen-settling action than standard Fu Ling; quiets the Heart, calms the Shen, tonifies Spleen Qi to support Blood production, and settles restlessness and anxiety from Heart Qi and Blood deficiency; the formula's primary Heart-calming Poria, chosen specifically for its enhanced Shen-settling properties.
  • Mai Men Dong (Ophiopogon japonicus) - Ophiopogon tuber: Nourishes Heart and Lung Yin, clears Heat from the Heart, moistens dryness, and calms the Shen; one of the formula's primary Yin tonic herbs, addressing the Heart Yin deficiency that allows the Shen to become unanchored and agitated; paired with Tian Men Dong as the classical two-Dong Yin-nourishing combination that deeply nourishes both Heart and Kidney Yin.
  • Mu Li Shu (Ostrea gigas, calcined) - Calcined Oyster shell: Heavily anchors and settles the Shen, calms Liver Yang, softens hardness, and consolidates Yin; the calcined preparation enhances its astringent and Yin-consolidating properties; as the formula's heavy mineral Shen-anchoring herb, Mu Li grounds the floating, unanchored Shen and anchors the Liver Yang that contributes to the reactive irritability and fearfulness of the combined Liver-Heart pattern.
  • Qing Pi (Citrus reticulata, immature) - Green Tangerine peel: Strongly moves Liver Qi, breaks up Liver Qi stagnation, and disperses accumulation; the immature Tangerine peel has a stronger Qi-moving and stagnation-dispersing action than mature Chen Pi; works alongside Chai Hu and Xiang Fu Zi as the formula's Liver Qi-moving combination, ensuring Liver Qi stagnation is thoroughly dispersed and cannot continue to generate Heat or disturb the Heart.
  • Suan Zao Ren (Ziziphus jujuba var. spinosa) - Sour Jujube seed: Nourishes Heart and Liver Blood, calms the Heart, and settles the Shen; one of the most important classical herbs for Heart Blood deficiency causing anxiety, fearfulness, and restlessness; nourishes the Blood that anchors the Shen, directly calms Heart agitation, and addresses the fear and startle response that accompany Heart Blood deficiency and Shen instability in the fearful, anxious horse.
  • Tian Men Dong (Asparagus cochinchinensis) - Asparagus tuber: Nourishes Kidney and Lung Yin, clears Heat, generates fluids, and supports the deep Yin foundation needed for long-term Shen stability; paired with Mai Men Dong as the classical two-Dong combination; Tian Men Dong's Kidney Yin-nourishing action addresses the deep constitutional Yin foundation that supports both Liver and Heart function and prevents the chronic progression from Liver Qi stagnation to Yin deficiency.
  • Wu Wei Zi (Schisandra chinensis) - Schisandra fruit: Tonifies Kidney and Heart Qi and Yin, astringes and consolidates leaking Qi and Essence, calms the Heart, and settles the Shen; works as the formula's Qi and Yin consolidating herb, preventing the ongoing leakage of Qi, Yin, and Essence that anxiety and chronic Shen disturbance produce; ensures that the Yin and Blood nourished by the formula's tonic herbs are retained rather than continually lost through the agitation and reactivity of Shen disturbance.
  • Xiang Fu Zi (Cyperus rotundus) - Cyperus rhizome: The classical primary Liver Qi-moving herb; strongly and comprehensively spreads Liver Qi throughout all the Liver channel's distribution areas, relieves constraint, and addresses emotional tension and frustration driven by Liver Qi stagnation; the broadest-acting Liver Qi-moving herb in the formula, ensuring the stagnant Qi is dispersed throughout the Liver's full channel distribution and not merely at one location.
  • Xuan Shen (Scrophularia ningpoensis) - Scrophularia root: Nourishes Yin, clears Heat, cools the Blood, and softens hardness; addresses the Yin deficiency and Blood Heat that develop as chronic Liver Qi stagnation generates Fire over time; cools the Heat in the Blood and Yin that contributes to the restlessness, agitation, and heightened reactivity of the deficiency-driven Shen disturbance pattern.
  • Ye Jiao Teng (Polygonum multiflorum, vine) - Polygonum multiflorum vine: Nourishes Heart Blood and Liver Blood, calms the Heart, settles the Shen, and unblocks the channels; the vine form of He Shou Wu; particularly effective for Blood deficiency-driven Shen disturbance, nourishing both Heart and Liver Blood while simultaneously calming the Heart and opening the channels; the vine's channel-connecting nature facilitates the distribution of Blood nourishment to all areas of the Heart's channel network.
  • Yuan Zhi (Polygala tenuifolia) - Polygala root: Opens the Heart's orifices, calms the Heart, settles the Shen, transforms Phlegm obstructing the Heart, and strengthens the Heart-Kidney communication; one of the classical Shen-calming herbs that directly opens the Heart's orifices to allow the Shen to settle; addresses the Phlegm obstruction of the Heart's orifices that accompanies chronic Shen disturbance, and strengthens the Heart-Kidney axis that keeps the Shen properly anchored by the Kidney's Yin and Essence from below.

Potential Drug Interactions

Herbsmith Rx Peony Calm Shen contains multiple Blood-nourishing and Blood-moving herbs including Dan Shen, Dang Gui Tou, and Suan Zao Ren, the Liver Qi-moving herbs Chai Hu, Xiang Fu Zi, and Qing Pi, and the Yin tonic herbs Mai Men Dong and Tian Men Dong. Horses on prescription medications should use this formula under veterinary supervision. Not for use in pregnant mares.

Medication categories warranting extra caution include anticoagulant or antiplatelet medications (Dan Shen has well-documented Blood-invigorating and mild anticoagulant properties; concurrent use with anticoagulants, including warfarin or heparin, requires close veterinary monitoring), medications metabolized by the liver or affecting liver enzymes (Chai Hu may influence cytochrome P450 enzyme activity), sedatives or anxiolytic medications (this formula affects Heart Shen and emotional regulation through TCVM mechanisms; concurrent use with CNS-active medications should be discussed with your veterinarian), and reproductive or hormonal medications (not for use in pregnant mares; several herbs including Dang Gui Tou and Qing Pi have potential uterotonic properties). Your veterinarian can determine appropriateness based on your horse's condition, current medications, and laboratory results.

VETERINARY AUTHORIZATION REQUIRED: Submit Your Authorization Request or Request a TCVM Telemedicine Consultation

Frequently Asked Questions

How is Peony Calm Shen different from Bupleurum Calm Spirit, and how do I know which is appropriate for my horse?

Both formulas address the combined pattern of Liver Qi constraint and Heart Shen disturbance, but they differ significantly in their nourishing depth. Bupleurum Calm Spirit is based on the classical Chai Hu Jia Long Gu Mu Li Tang and works primarily through spreading and resolving excess constraint, making it better suited to horses whose Liver-Heart disharmony is primarily an excess pattern of constraint and Yang agitation. Peony Calm Shen includes a much larger array of Yin and Blood tonic herbs including Mai Men Dong, Tian Men Dong, Xuan Shen, Suan Zao Ren, Bai Zi Ren, Wu Wei Zi, Ye Jiao Teng, and Dang Gui Tou, making it the better choice when the horse also shows signs of underlying Heart Blood and Yin deficiency: chronic anxiety that does not fully resolve with Liver Qi-moving approaches alone, a horse that is both reactive and also appears depleted or tight-coated, or anxiety that has been present long enough for a deficiency component to develop alongside the stagnation. A TCVM-trained veterinarian can evaluate the pattern and determine which formula, or what combination, is most appropriate.

How is Peony Calm Shen administered, and what are the recommended doses for a 1,000 lb horse?

For the traditional powder, administer two tablespoons twice daily for the first 20 days, then two tablespoons once daily. For the Flax Plus format, administer one scoop (six-tablespoon scoop included) twice daily for the first 20 days, then one scoop daily. Mix into grain for easy administration. If the horse is reluctant to eat herbs, begin with small amounts in grain and gradually increase, or choose the Flax Plus version. Confirm dosing for horses of other weights with your authorizing veterinarian. Not for use in pregnant mares.

Why does this formula include so many Yin and Blood tonic herbs alongside the Liver Qi-soothing herbs?

Chronic Liver Qi stagnation generates Heat over time, and that Heat depletes Yin and Blood. When Yin and Blood become deficient, the Heart Shen loses its anchor and becomes increasingly unstable, reactive, and fearful. In horses with long-standing anxiety and reactivity, simply moving the Liver Qi is often insufficient because the underlying deficiency continues to destabilize the Shen even after the stagnation is resolved. The Yin and Blood tonic herbs in Peony Calm Shen rebuild this nourishing foundation: they restore the Heart Blood and Yin that give the Shen its stability and prevent the anxiety from recurring once the stagnation is cleared. This combination of moving and nourishing is the formula's core therapeutic strategy and distinguishes it from formulas that address the Liver-Heart disharmony through dispersing and anchoring alone.

How long does it take to see improvement, and can this formula be used long-term?

Because Peony Calm Shen addresses both the Liver Qi stagnation and an underlying Heart Blood and Yin deficiency, improvement typically unfolds in two phases: horses often show improvement in reactive irritability and acute spookiness within 2 to 4 weeks as the Liver Qi begins to move and the Heart Shen calms, with deeper improvement in the underlying anxiety and fearfulness continuing over 6 to 12 weeks as the Blood and Yin nourishment builds. This formula is suitable for long-term use when the underlying deficiency pattern is significant. Your authorizing veterinarian can monitor your horse's response and advise on whether continued use, dose adjustment, or a transition to maintenance dosing is appropriate as the horse's pattern resolves.

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