Are IV drips good or bad? Neither, really. They have real advantages when you’re dehydrated, nauseous or short on time. They also have IV drip disadvantages worth knowing before you book: the cost, a needle, small medical risks, and evidence for the vitamins that’s thinner than the marketing suggests.
We offer drips, so you might expect a sales pitch. This is the opposite: a balanced list of pros and cons, so you can decide whether a drip is worth it for you, or whether water and a nap will do.
The pros: what IV drips do well
1. Speed
A drip delivers about a litre of fluid straight into your bloodstream in 30 to 45 minutes. If you’re dehydrated, you may feel steadier, less dizzy and less headachy during the drip or soon after. Drinking the same amount works too, but more slowly.
2. It bypasses an upset stomach
If you’re vomiting, sips of water often come straight back up. A drip skips your gut entirely. Our Hangover Rescue drip can also include anti-nausea medicine and pain relief, as assessed by the nurse, which can make it easier to eat and drink afterwards.
3. Convenience
On holiday, time matters. A nurse can come to your hotel or villa, and you can lie down while the drip runs. For guests with a wedding, flight or boat trip later the same day, that can be worth paying for.
4. A health check from a nurse
Every drip with us starts with a screening by a registered nurse, including blood pressure and pulse. Sometimes that conversation is useful in itself, for example when the nurse spots signs that you need a doctor rather than a drip.
The cons: IV drip disadvantages
1. Cost
A drip costs far more than a bottle of water and a sachet of oral rehydration salts, which do the job well for most mild dehydration. Our guide to IV hydration vs drinking water explains when the cheaper option is enough. Our current prices are on our drip menu.
2. A needle
Putting in a cannula means a sharp scratch, and sometimes a second try if your veins are hard to find. Some people find that stressful. You may have a small bruise for a few days.
3. Evidence gaps
This is the big one. The fluid has a clear, well-understood benefit when you’re dehydrated. The vitamins are a different story.
- The Cleveland Clinic says there’s limited scientific evidence for general wellness benefits from IV vitamin therapy.
- The Merck Manual states there’s insufficient evidence that IV vitamin therapy is effective for treating any disease.
- Most water-soluble vitamins in a drip leave your body within about a day, so effects don’t last long.
So, is an IV drip effective? For dehydration, yes. For “boosting immunity” or “detoxing”, be sceptical.
4. Small medical risks
Any IV carries some risk. The Merck Manual lists electrolyte disturbances, a drop in blood pressure from fast infusions (causing dizziness or fainting), stomach upset and infection from contaminated equipment. The Cleveland Clinic adds bruising, infection at the needle site and, rarely, a blockage in a blood vessel. Very high vitamin doses can also cause problems.
These risks are low when a drip is given by licensed staff, after screening, with sterile single-use kits. Our guide on whether an IV drip is safe explains what to check, normal side effects and warning signs, so we won’t repeat it here.
5. It isn’t for everyone
The Cleveland Clinic advises people with heart disease, high blood pressure, kidney disease or pregnancy to check with a doctor first. Extra fluid can be harmful for some people with heart or kidney problems, and some ingredients interact with medicines. The nurse may say no, and that’s a good thing.
6. It can delay proper care
If you have a fever, severe pain or ongoing vomiting, a drip can make you feel a little better while the real problem goes untreated. In Thailand, a fever needs a doctor because it could be dengue.
Pros and cons at a glance
| Pros | Cons |
|---|---|
| Fast rehydration in 30 to 45 minutes | Costs much more than water and rehydration salts |
| Works when you can’t keep fluids down | Needs a needle and may leave a bruise |
| Can include anti-nausea medicine and pain relief, as assessed | Limited evidence for the vitamins |
| Comes to your hotel or villa | Small risks, such as infection or a reaction |
| Includes a nurse’s health screening | Not suitable for everyone |
IV drip benefits and side effects: is it healthy?
Is an IV drip healthy? It isn’t a health habit in the way sleep, food and exercise are. It’s a tool that’s useful in specific situations.
A drip makes most sense when:
- You’re dehydrated and struggling to drink enough
- You’re nauseous after a stomach upset or a big night
- You need to feel steadier quickly and have something important later
It makes least sense when:
- You feel fine and want a general “boost”
- You’re mostly short on sleep
- You’re ill with a fever or other warning signs, and need a doctor
Most IV drip side effects are mild: a cool feeling in the arm, a bruise, or bright yellow urine from B vitamins. Anything more, such as rash, swelling or breathing trouble, needs the nurse straight away.
Our honest take
We’d rather you booked a drip when it will genuinely help than when it won’t. If you’re not sure, message us. The nurse can talk through your symptoms and tell you if water, rest or a doctor is the better choice.
If a drip does suit you, you can book a drip online at our Ao Nang clinic or for your hotel or villa.
When to go to hospital instead
A drip is not emergency care. Call 1669 for an ambulance, or go straight to hospital, if you have:
- Chest pain, difficulty breathing or swelling of the face or throat
- A high fever, especially with a rash, bleeding gums or severe stomach pain
- Confusion, fainting or extreme drowsiness
- Blood in vomit or stool
- Vomiting that won’t stop, or very little urine for many hours
The nearest hospitals are Wattanapat Hospital Ao Nang, Bangkok Hospital Krabi and Krabi Hospital in Krabi Town.
Frequently asked questions
What are the main disadvantages of an IV drip?
Cost, a needle, small risks such as bruising or infection, and limited evidence for the vitamins. For mild dehydration, water and oral rehydration salts usually work just as well.
Are IV drips good or bad for you?
For a healthy adult who’s dehydrated, a drip given by a registered nurse after screening is generally low risk and can help. For general wellness, the benefits are unproven.
Is an IV drip effective?
For rehydration, yes. There’s insufficient evidence that IV vitamins treat any disease or give lasting energy.
Can I have a drip if I take regular medicines?
Often, yes, but tell the nurse what you take. Some ingredients can interact with medicines, and they may adjust the drip or advise against it.
Ready to feel better?
A registered nurse can come to your hotel or villa in Ao Nang and nearby beaches, or visit our clinic.
Photo: Myles Bloomfield on Unsplash