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Reviewed on May 05, 2023. by
Dr Daniel Atkinson
GP Clinical Lead
Registered with GMC (No. 4624794)
Next review due on May 05, 2025.
Product info
Doxycycline is an antibiotic that’s used to prevent malaria. It belongs to a group of medicines called tetracyclines, and comes in the form of an easy to take capsule.
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Doxycycline is an antibiotic that’s used to treat a range of infections, and can prevent you from developing malaria when you’re travelling in areas where transmission is common. It works effectively against multiple bacterias and microorganisms, and offers protection in all malarious regions of the world.
Malaria is a severe, often fatal disease that is spread by infected mosquitoes. One bite can be enough to spread it,[1] so it’s important you’re taking every measure to keep yourself safe.
Doxycycline should be started 2 days before entering a country with a risk of malaria, taken daily for the duration of the trip and continued for 4 weeks after return. This extended course means you’ll remain protected if you’ve been bitten and are carrying any malaria parasites without knowing it.
How does Doxycycline work?
Doxycycline works by protecting you against the onset of malaria in the event of being bitten by an infected mosquito while travelling. Tetracycline antibiotics offer prophylaxis, meaning they’re a preventative medication that can stop a disease from developing. Prophylactic antibiotics destroy the harmful bacteria that can make you ill by breaking down the proteins within them.
Starting your course of antibiotics two days before you arrive in a place with a high malaria risk means the drugs are already working in your system. Unlike other malaria prevention, Doxycycline is continued for four weeks after you return. This is because if you do get bitten by an infected mosquito, there is an incubation period before symptoms appear than can last anywhere between 7 and 18 days (or in some cases even longer).[2]
What doses of Doxycycline are there?
Doxycycline is available as 100mg capsules, taken once a day. That’s the standard dose for malaria prevention, and should be enough to keep you protected for the duration of your travels.
You’ll need to take this daily dose for the duration of your stay, and for 4 weeks once you return.
Who is Doxycycline for?
Anyone who is travelling to a part of the world that poses a malaria risk will need to take preventative measures – in the form of both medication and other practical solutions to avoiding mosquito bites. Creams and sprays can be used as deterrents, as can mosquito nets, long sleeve clothing and full length trousers.
This page was written by The Treated Content Team.
This page was medically reviewed by Dr Daniel Atkinson on May 05, 2023. Next review due on May 05, 2025.
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
DoxycyclineDoxycycline
How to take Doxycycline
Being a once-a-day antibiotic, Doxycycline is easy to take and convenient if you’ve got a busy day ahead. The capsules should be swallowed with plenty of water, and work best when taken at the same time each day. With that in mind, it might be a good idea to keep to a schedule for taking it – you could take your Doxycycline first thing in the morning, or set an alarm each day while you’re away.
You should take doxycycline in the sitting or standing position and remain upright for at least an hour after taking it. This will reduce the risk of stomach irritation and indigestion. Avoid taking this medication just before lying down.
How long does Doxycycline take to work?
Tetracyclines enter your bloodstream quickly once you start them, but to feel the full effects of antibiotics, they will need a couple of days. That’s why a course of Doxycycline begins before you enter a malarious region – by the time you’re there, the medication will have built up enough to keep you protected.
For the same reason, you’ll carry on taking your antibiotics after your trip in case you get bitten by an infected mosquito without knowing it. Doxycycline covers you before, during and after your trip.
What happens if I miss a dose of Doxycycline?
If you forget to take a capsule at your usual time, make sure you try and take it as soon as you can. You’ll be taking one a day, so there’s no need to try and double up if you miss a dose completely. Just carry on with your usual routine and Doxycycline will do its job.
It’s important to finish your full prescription, even if you feel fine. This will make sure you’re completely protected from malaria.
This page was written by The Treated Content Team.
This page was medically reviewed by Dr Daniel Atkinson on May 05, 2023. Next review due on May 05, 2025.
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
DoxycyclineDoxycycline
DoxycyclineDoxycycline
FAQ: Doxycycline
Have something specific you want to know? Search our info below, or ask our experts a question if you can’t find what you’re looking for.
Is Doxycycline similar to other malaria treatments?
Answer:
There’s a range of different options for malaria prevention. By talking to a clinician, you can choose one you feel best suits you. Malarone is an antimalarial medication that uses two ingredients and, like Doxycycline, is taken once a day. There is also a non-prescription version of the same drug, Maloff Protect, which works in exactly the same way. Lariam is taken once a week, which makes it an easier option if you want less of a daily routine. You do need to start it around ten days before you travel though, so you’d need to order it in advance. An added benefit of Doxycycline – it can also be used to treat other conditions, like acne and travellers’ diarrhoea.
How does Doxycycline protect against malaria?
Answer:
Malaria is caused by five different types of parasites: Plasmodium falciparum, P. vivax, P. malariae, P. ovale, and P.knowlesi. In 2019, the World Health Organisation (WHO) estimated 228 million cases of malaria worldwide, along with being endemic in over 90 countries.[1] It is found mostly in tropical and subtropical areas of the world, with Africa the most affected region worldwide, accounting for the most cases and deaths from the disease. It is also common in South America and South Asia,[2] so you’ll need to be fully informed about the country you’re visiting. Tetracyclines were discovered in the 1940s. They’re widely available, affordable, and have been used extensively as prophylactics. They have proven efficacy for malaria prevention.[3] By blocking the processes of dangerous bacteria, Doxycycline allows your body’s immune system to fight off infection, stopping malaria before it develops.
Do I need a prescription for Doxycycline?
Answer:
You’ll need to get a prescription from one of our clinicians before you can begin taking Doxycycline. We want to make sure it’s the right malaria prevention treatment, and that it will work effectively for you.
Does Doxycycline cause any side effects?
Answer:
Like all medicines, taking Doxycycline might give you some side effects. Not everyone will get them though. It’s quite common to feel nauseous as your body adjusts to taking antibiotics, but this should pass. Tetracyclines can make some people’s skin a bit more sensitive to sunlight. So if you’re visiting a tropical country you should avoid prolonged exposure to sunlight while taking them. Travel clinics can give you practical tips about sun protection if you’re not already well informed, such as wearing wide brimmed hats and using the right sunscreen. If you have any serious reactions, like difficulty breathing or fever, you should stop taking Doxycycline immediately and seek medical attention. Our clinicians can advise you about switching to another malaria treatment if this happens before your trip.
Why should I buy Doxycycline online with Treated?
Answer:
If you’re planning a trip to a country where malaria cases are high, you’ll want to know you’re safe from illness on your journey. Mosquito bites might be hard to prevent, but getting the protection you need has never been easier. Whether it’s antimalarial drugs or antibiotics, our experts can help you find a treatment that’ll keep you symptom-free while you’re away. Once you’ve decided how you want to take your medication, we’ll follow up with some questions to see how you’re getting on. Order Doxycycline and we’ll deliver it next-day, which means you can start it on time.
Chopra, I. and Roberts, M. (2001). Tetracycline Antibiotics: Mode of Action, Applications, Molecular Biology, and Epidemiology of Bacterial Resistance. Microbiology and Molecular Biology Reviews, [online] 65(2), pp.232–260. doi:10.1128/mmbr.65.2.232-260.2001.
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When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
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