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Yes, intravenous hydration can relieve part of the discomfort after a night of excess: dehydration. No, it doesn't erase a hangover or speed up alcohol elimination; only your liver does that, at a fixed rate of about 0.15 g/L per hour. In this article, our medical team separates what the evidence supports from what marketing promises.
What happens to your body after a night of excess
Alcohol inhibits vasopressin, the antidiuretic hormone, and your kidneys excrete more water than you take in. The classic study by Eggleton (Journal of Physiology, 1942) quantified this effect: about 100 ml of additional urine for every 10 g of alcohol — that is, for every standard drink.
Four drinks can mean close to half a litre of additional fluid loss. That figure, described back in 1942, explains much of the headache and dryness of the following morning.
In addition, the liver converts ethanol into acetaldehyde, a toxic compound that causes nausea, tachycardia and headache. Alcohol also irritates the gastric mucosa, fragments deep sleep and depletes glycogen stores and B-group vitamins.
The result is familiar: headache, fatigue, dry mouth and mental fog. None of these complaints disappears instantly with a drip, because their origin is not purely fluid-related.
Myths and realities of intravenous hydration
Myth 1: "A drip eliminates alcohol faster"
Reality: the rate of metabolism is fixed, at around one standard drink (10 g of alcohol) per hour. Intravenous fluids improve circulating volume, but they do not alter the activity of the ADH and ALDH enzymes that break down alcohol.
Myth 2: "It's always better than drinking water"
Reality: in mild dehydration, oral rehydration achieves comparable results within a few hours. The intravenous route offers an advantage when vomiting or nausea prevent drinking, or when rapid, medically supervised rehydration is the goal.
Myth 3: "Intravenous vitamins detoxify you"
Reality: no drip "cleanses" the body; the liver and kidneys already perform that function. B-group vitamins, vitamin C and magnesium act as support for recovery, never as an antidote.
A systematic review published in the BMJ in 2005 (Pittler, Verster and Ernst) concluded that no conventional intervention had demonstrated convincing effectiveness for preventing or treating hangovers. Medical honesty starts there.
| Myth | Medical reality |
|---|---|
| The drip cures a hangover | Only time metabolises alcohol; the drip corrects dehydration |
| Drinking water is useless | In mild dehydration, the oral route is effective within hours |
| IV vitamins detoxify | They support recovery; they don't remove toxins |
| It works for any condition | Severe acute intoxication is a hospital emergency |
What an IV drip can (and can't) do
It rehydrates immediately, because the fluid enters the bloodstream directly without depending on the digestive tract. In a 30-to-60-minute session, saline and electrolytes are administered and, depending on the protocol, B-group vitamins, vitamin C, biotin, magnesium or glutathione.
What it cannot do: speed up alcohol metabolism, give you back lost sleep or guarantee that you feel one hundred per cent. Results vary between people and depend on the amount consumed, rest and your prior state of health.
When is the effect felt? Rehydration is immediate at the circulatory level, and subjective improvement is usually noticed in the following hours, within the first 24 hours. What cannot be promised is the complete disappearance of symptoms.
What a session looks like, step by step
Every session begins with a medical assessment: clinical history, blood pressure, heart rate and hydration status. If you are not suitable — for example, with acute intoxication or decompensated heart or kidney disease — the doctor will say so and propose alternatives or the appropriate referral.
- Medical assessment
- Suitable for IV?
- Personalised protocol
- Alternatives or referral
- 30-60 min infusion
- Brief observation
- Recovery guidelines
The infusion lasts between 30 and 60 minutes for vitamin drips and between 60 and 120 minutes for NAD+ infusions. Afterwards there is a brief observation period and some simple guidelines: light food, water and rest.
Key points
- A hangover combines dehydration, acetaldehyde, inflammation and lack of sleep; a drip only acts on the first factor.
- The liver metabolises about 10 g of alcohol per hour; no drip speeds up that rate.
- The intravenous route makes sense with vomiting, nausea or a need for rapid rehydration; in mild cases, water works.
- The session lasts 30-60 minutes and always requires a prior medical assessment; results vary.
- Acute alcohol intoxication is an emergency: call 112, not an aesthetic clinic.
How Santé Clinics approaches it
At Santé, every IV therapy protocol begins with a medical assessment; if a drip is not indicated, the doctor will tell you. Intravenous therapy is led by Dr. Alejandro Infante and performed by registered medical doctors.
You have three options: the SANTÉ Premium Drip (glutathione, vitamin C, B complex, biotin and magnesium), the Fitness Drip (carnitine, B complex, zinc, taurine, vitamin C and biotin) and the Custom Drip, fully personalised after assessment. For broader recovery goals there are NAD+ infusions, for which courses of 4 to 6 sessions are recommended.
| Treatment | Duration | Price |
|---|---|---|
| SANTÉ Premium Drip | 30-60 min | €250 |
| Fitness Drip | 30-60 min | €250 |
| Custom Drip | 30-60 min | Varies with personalisation |
| NAD+ IV 250 mg | 60-120 min | €500 |
| NAD+ IV 500 mg | 60-120 min | €750 |
| NAD+ IV 1000 mg | 60-120 min | €1,000 |
The medical consultation costs €50 and the aesthetic consultation is free; the two-week follow-up is included at no extra cost. We see patients in Spanish, English, Portuguese and Russian at Avenida Diagonal 384, Barcelona.
And a note of medical honesty: if what you need is water, light food and rest, we will tell you. If you show signs of severe intoxication — confusion, vomiting that won't stop, slow breathing — the right step is an emergency department, not an aesthetic-medicine clinic.
Frequently asked questions
How long does it take to feel the effect?
Rehydration is immediate at the circulatory level, and subjective improvement is usually felt in the following hours, within the first 24 hours. Results vary according to the amount of alcohol, sleep and your prior health.
Is intravenous hydration safe?
Performed by registered doctors after an assessment, it is a low-risk procedure; the most common effects are discomfort at the puncture site or a small bruise. It is not indicated in decompensated heart or kidney failure, nor during acute intoxication.
Can I come in while I still have alcohol in my blood?
It depends on your condition: the doctor assesses your level of consciousness, your vital signs and your capacity to give consent. With acute intoxication, the correct course of action is referral to emergency care.
How much does a session cost?
The Premium Drip and the Fitness Drip cost €250 per session; the Custom Drip varies according to its composition, and NAD+ infusions start at €500. The medical consultation costs €50 and the aesthetic consultation is free.
Does it replace water and rest?
No. It is medical support for recovery, not a substitute for rest, light food and oral rehydration. Nor is it a licence to repeat the excess: the appropriate frequency is decided by the doctor together with you.
