Magnesium Relax — Magnesium & B-Vitamin Infusion

Magnesium Relax is KIM CB's focused muscle and nervous system recovery infusion — magnesium paired with vitamins B1, B2, B6, B12, pantothenic acid, and vitamin C in a single IV session. Magnesium is the physiological antagonist of calcium at the neuromuscular junction: adequate magnesium keeps skeletal muscles in a relaxed baseline state, while deficiency allows calcium-driven hyperexcitability that manifests as cramps, tension, and twitching. Combined with the neurological B-vitamins (B6 as GABA and serotonin cofactor, B12 for myelin maintenance, B1 for neuronal energy), Magnesium Relax provides a coordinated approach to muscle tension, stress-related symptoms, and sleep disruption from a nutritional angle. Administered at KIM CB in České Budějovice in approximately 20 minutes by Mgr. Adéla Drtilová, the protocol is well suited to anyone experiencing recurrent muscle cramps, persistent tension, overload, or difficulty sleeping.

Magnesium Relax addresses two of the most prevalent physiological contributors to muscle tension and nervous system overactivation: magnesium insufficiency and B-vitamin depletion — both exacerbated by chronic stress, demanding physical training, and the systemic inflammatory load of modern life. Magnesium is present in approximately 300 mg in the average adult and serves as a cofactor for over 300 enzymatic reactions. Its most immediately felt role is in regulating neuromuscular excitability: at the motor nerve terminal, magnesium competes with calcium for entry through voltage-gated channels. When intracellular magnesium is adequate, this competition keeps resting acetylcholine release low, maintaining skeletal muscle in a relaxed state. When magnesium falls below threshold — as it does during stress (cortisol triggers renal magnesium excretion), after sustained physical activity, with high caffeine intake, or with alcohol — the balance tips toward calcium dominance and muscles become hyperexcitable. The familiar consequences are cramps, tension headaches, restless legs, jaw clenching, and sleep disruption from nocturnal cramping. In the nervous system, magnesium blocks the NMDA glutamate receptor at resting membrane potential, preventing pathological excitotoxic activation. This mechanism underlies magnesium's role in migraine prevention (reduced trigeminovascular sensitisation) and its anxiolytic-adjacent effect (reduced HPA axis reactivity and lower basal cortisol in adequately magnesium-replete individuals). IV delivery is important here because magnesium absorption from oral supplements is tightly gated: bioavailability is 30–40% for magnesium glycinate (the most absorbed form) and closer to 10% for magnesium oxide. Osmotic diarrhoea limits dose escalation. IV bypasses these constraints entirely, allowing tissue magnesium levels to rise in a single session in a way that weeks of oral supplementation often cannot achieve. The B-vitamins in the formula complement magnesium's neurological actions. B12 supports myelin sheath integrity for efficient nerve conduction. B6 is a cofactor in the synthesis of GABA (the principal inhibitory neurotransmitter) and serotonin; B6 deficiency reduces GABAergic tone and can worsen anxiety and sleep onset. B1 is the rate-limiting nutrient for neuronal glucose metabolism; B2 supports the mitochondrial electron transport chain in high-energy-demand neural tissue. Pantothenic acid (B5) is a precursor of coenzyme A, required for acetylcholine synthesis. Vitamin C provides antioxidant coverage in neuronal tissue. At KIM CB the session runs approximately 20 minutes in a reclining chair; Mgr. Adéla Drtilová administers the IV and MUDr. Štádlerová provides oversight. The rate of magnesium infusion is controlled to prevent the transient flushing and warmth that too-rapid delivery can cause. Health questionnaire screening covers renal function, cardiac conduction status, and electrolyte disorders (hypermagnesaemia, hypercalcaemia) before the first session.