IV療法 (ビタミン点滴)

IV therapy (intravenous vitamin and nutrient infusion) delivers fluids, electrolytes, vitamins, minerals, and antioxidants directly into the bloodstream, bypassing the gastrointestinal system. Most sessions run 20–60 minutes in a supervised clinical setting; a trained nurse or doctor inserts a peripheral IV line, and the selected formulation drips in at a controlled rate. There is no downtime.

**Common drip types — what they contain and what the evidence says:**

Plain hydration and electrolyte drips contain normal saline or Lactated Ringer's solution with sodium, potassium, and chloride. This is the most clinically grounded IV offering: rapid rehydration is effective and well-established for dehydration from illness, exercise, or alcohol, and is the only IV-therapy claim with consistent clinical support for otherwise healthy adults.

Myers' cocktail — first described by physician John Myers in the 1970s — combines magnesium, calcium, B vitamins (B1, B2, B3, B5, B6), and vitamin C. It is one of the most commonly administered "wellness" infusions. Small observational studies suggest some benefit for fatigue and fibromyalgia; controlled trial evidence is limited, and most clinics administer modified proprietary versions rather than the original formula. Reasonable rationale exists for correcting demonstrated B-vitamin or magnesium deficiency, but claims beyond that are not strongly supported.

High-dose vitamin C drips deliver ascorbic acid at concentrations far above what the gut can absorb orally (often 10–50 g per session). Research on high-dose IV vitamin C is active and genuine, particularly in oncology-support contexts — but evidence for routine "immune boost" or "skin glow" in healthy adults is weak and mixed. High-dose vitamin C is metabolised to oxalate; patients with renal impairment or G6PD deficiency should not receive it without specialist guidance.

B-complex and B12 "energy" drips replace vitamins that are genuinely lost through poor diet, alcohol use, malabsorption, or vegan diets. If you are B12-deficient, IV or IM replacement is clinically effective and fast. If you are not deficient, the excess is excreted in urine with negligible lasting effect on energy.

NAD+ (nicotinamide adenine dinucleotide) drips are among the most expensive offerings, priced on preclinical research linking NAD+ to cellular energy metabolism, DNA repair, and anti-aging pathways. Human clinical trial evidence for NAD+ IV infusion in healthy adults remains early-stage and inconclusive. Common side effects during infusion include flushing, chest tightness, and nausea; these usually resolve by slowing the infusion rate.

Glutathione and antioxidant blends add glutathione (a naturally produced antioxidant) or vitamin C/E mixes, sometimes alongside brightening or "glow" claims. Glutathione is unstable in the bloodstream and is rapidly metabolised; the clinical literature on IV glutathione for skin lightening or systemic antioxidant loading is sparse and largely anecdotal. See our dedicated glutathione injection page for more detail.

**Shared safety considerations:** all IV therapy carries a small but real risk of IV-site infection, bruising, or phlebitis with repeated access of the same vein. Rapid fluid infusion can precipitate fluid overload in patients with cardiac or renal insufficiency — this is a genuine medical risk, not a theoretical one. Compounding quality varies widely between clinics; pharmaceutical-grade, sterile-prepared formulations from a licensed pharmacy are essential. IV therapy is not a substitute for medical diagnosis or treatment of any condition.