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10 ‘instant’ calmers that offer quick action


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  • If you’re looking for a calmer to offer quick and effective relief for an anxious or excitable horse, here are the best instant calmers for horses below. These are available in paste form and are administered via a large syringe into the horse’s mouth, which makes them perfect for a one-off stressful occasion.

    If you’re looking for a calmer that’s fed daily check out our best daily calmers for horses. They all have the same aim of reducing acute stress and overall anxiety, which should allow your horse to learn better, be more manageable and lower their risk of stress-related disease.

    Best instant calmers for horses

    NAF Five Star Instant Magic calmer syringe

    NAF Instant Magic

    Form: Syringe paste
    Sizes: 3 x 30ml
    One syringe: 1 serving
    RRP: £18 for 3 x 30ml syringes

    This natural calmer contains a combination of herbs and bio-available magnesium known to help maintain calm, support concentration and learning. It has been independently trialled, with peer-reviewed, published results showing a reduction in inappropriate responses, and an improvement in the horse’s cognitive profile with no sedation. Feed 1–1½ hours before event.

    Science Supplements ProKalm Syringe

    Science Supplements ProKalm

    Sizes: 60g
    One syringe: 1–2 servings
    RRP: £9.99 for 1 x 60g syringe

    This supplement helps horses perform to their potential using a fast-acting formulation, which can “take the edge off” in as little as 30 mins – peaking two to four hours after administering, lasting up to eight hours. Effects are more predictable and consistent when fed alongside Science Supplements ProKalm powder.

    Equine America So Kalm Paste

    Equine America So Kalm Paste

    Sizes: 30ml
    One syringe: 3 servings
    RRP: £12.99 for 1 x 30ml syringe

    So Kalm Paste is formulated to settle stressed horses so that they can focus on their performance. It contains a premium grade magnesium with L-tryptophan, which is an essential amino acid associated with the production of serotonin. Administer 10ml 1½–2 hours prior to exercise or event, or for a slightly faster effect, try Equine America Super So Kalm Paste.

    In the UK? Buy direct at equine-america.co.uk

    Animalife Vetrocalm Instant calmer

    Animalife Vetrocalm Instant

    Form: Syringe paste
    Sizes: 1 x 25ml, 20 x 25ml, 250ml refill
    One syringe: 1 serving
    RRP: £12.99 for 1 x 25ml syringe

    This paste works within 30 minutes and lasts for hours, helping your horse maintain a relaxed outlook and deal with stressful situations. It supports the replenishment of oxygen in the blood to help horses deal with stress, fear, anxiety and tension. Can be used every 2–3 hours as required, and available in powder form for young horses.

    Global Herbs Supercalm Instant Syringe

    Global Herbs SuperCalm Instant Syringe

    Sizes: 30ml, 12 x 30ml
    One syringe: 2 servings
    RRP: £9.95 for 1 x 30ml syringe

    This calming herbal mix of holy basil, winter cherry and amla reduces nervousness and excitability, and improves focus. It’s designed for use before competition or stressful events and results are usually seen within an hour. Can be used in addition to SuperCalm powder or SuperCalm liquid.

    Equine Products Calm

    Equine Products Cool It Paste

    Sizes: 30g
    One syringe: 1 serving
    RRP: £6.70 for 1 x 30g syringe

    Containing L-trytophan, magnesium, vitamin B1 and a probiotic, this supplement is useful in stressful situations, such as fireworks. There is no withdrawal period so it is ideal for competition horses. Administer 3–4 hours before needed. Also available in powder form.

    Supreme products defuse calmer syringe

    Supreme Products Defuse

    Form: Liquid
    Sizes: 80ml syringe, 500ml, 1l, 5l
    Single measure: 60–120ml or 1 syringe
    RRP: £9.75 for 1 x 80ml syringe

    A vitamin, magnesium and amino acid-based supplement that helps calm nervous animals. Designed to be used as an “on-the-day” calmer, it can be given when you feel it is required without build up. Administer 10ml 2½ hours before needed.

    Horse First RelaxMeNow

    Horse First RelaxMeNow

    Sizes: 30ml
    One syringe: 1 serving
    RRP: £11.50 for 1 x 30ml syringe

    This syringe paste is designed to be fed as a booster alongside Horse First RelaxMe when your horse is particularly excitable or stressed. It should be administered two hours before performance to settle nerves and stomach. Administer 2 hours before needed.

    Coligone Calm Down Paste instant calmer for horses

    H Bradshaws Coligone Calm Down Paste

    Form: Paste
    Sizes: 50g
    One syringe: 1 serving
    RRP: £9.99 for 1 x 50g syringe

    Fast acting and effective soothes the digestive tract and guards against gastric irritation during times of stress, while the naturally sourced calming capabilities of calcium and magnesium relaxes stressy horses. It is formulated to replenish the good bacteria in the hind gut, which is lost during stressful periods. Use 20 – 30 mins prior to requirement.

    NutriScience Anxikalm Triple Strength Gel

    NutriScience Anxikalm Triple Strength Gel

    Form: Gel
    Sizes: 30ml
    One syringe: 1 serving
    RRP: £9.55 for 1 x 30ml syringe

    This apple-flavoured gel formulation helps calm excitable horses in stressful conditions. It is described as the most concentrated L-Tryptophan syringe on the market, which combined with vitamin B, helps to decrease anxiety and stress. Give 2–3 hours before requirement.

    When should I use an instant calmer?

    Any change of routine, such as your horse starting box rest, or novel situations can bring new stresses with it. In these situations, the best instant calmers for horses can help to “take the edge off”, leaving you with a more relaxed horse that may be safer to handle. Some are designed to work alongside a daily calming supplement, while others are effective on their own.

    How to choose an instant calmer

    We’d usually suggest considering the form a supplement takes, but these all come in paste form. Instead it’s worth considering the time each one takes to act as although they’re billed as “instant calmers”, most take at least an hour or two to enter your horse’s system.

    Cost is another consideration – some of these syringes deliver multiple doses so are better value for money if they work for your horse. You’re also better off buying multipacks where available if you’re likely to require the calmer on multiple occasions.

    If you compete with your horse then it is important you make sure any supplements you use do not contain any prohibited substances.

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