People over 65 years are more at risk of severe side effects when taking Bactrim. The risk is greater if you have kidney or liver disease or are taking some types of other medicines, such as diuretics. The dose and length of time you have to take Bactrim will depend on the type of infection you have. For children under 12 years of age, the dose of Bactrim oral suspension depends on the age and weight of your child.
Your doctor or pharmacist will tell you how much your child should be given. The correct amount of Bactrim oral suspension should be measured, using a metric measure, before being given by mouth. The full course of Bactrim prescribed by your doctor should be taken, even if you feel better after a few days.
This will help clear your infection completely. If your symptoms do not improve within a few days, or if they become worse, let your doctor know. Immediately telephone your doctor or Poisons Information Centre telephone 13 11 26 for advice or go to Accident and Emergency at your nearest hospital if you think that you or anyone else may have taken too much Bactrim even, if there are no signs of discomfort or poisoning.
If you take too much Bactrim, you may feel sick or vomit, feel dizzy, depressed or confused or have a headache. You may also feel drowsy or become unconscious.
Otherwise, your doctor may think that it was not effective and change your treatment unnecessarily. If you are taking Bactrim for a long time, visit your doctor regularly so your progress can be checked. Contact your doctor immediately if you get severe diarrhoea , even if it develops several weeks after stopping Bactrim.
Do not take any diarrhoea medicine without first checking with your doctor. Do not take any other medicines whether they require a prescription or not without first telling your doctor or consulting with a pharmacist. Sometimes use of this medicine allows other bacteria and fungi which are not sensitive to Bactrim to grow. If other infections such as thrush occur while you are taking Bactrim, tell your doctor. If you take the tablets out of the blister pack or the oral suspension out of the bottle before it is time to take them, they may not keep well.
A locked cupboard at least one-and-a-half metres above the ground is a good place to store medicines. If your doctor tells you to stop taking Bactrim, or the tablets or oral suspension has passed its expiry date, ask your pharmacist what to do with any medicine that is left over.
Bactrim is a Prescription Only S4 medicine. Tell your doctor or pharmacist as soon as possible if you do not feel well while you are taking Bactrim. Bactrim helps most people with susceptible infections but it may have unwanted side effects in a few people. All medicines can have side effects. Sometimes they are serious, most of the time they are not. You may need medical treatment if you get some of the side effects.
Very rarely, people have died from complications due to certain severe skin, liver or blood reactions. Elderly people, people with liver or kidney disease and people taking certain other medicines are more at risk of these severe reactions. This is not a complete list of all possible side effects. Others may occur in some people and there may be some side effects not yet known.
Tell your doctor if you notice anything else that is making you feel unwell, even if it is not on this list. View more information about myVMC. Please be aware that we do not give advice on your individual medical condition, if you want advice please see your treating physician. Parenting information is available at Parenthub. Are you a Health Professional? Jump over to the doctors only platform.
Click Here. Bactrim is used to treat bacterial infections in different parts of the body. Your doctor may have prescribed Bactrim for another purpose. Ask your doctor if you have any questions why Bactrim has been prescribed for you.
Action: How Bactrim works Bactrim works by stopping the growth of the bacteria causing the infection. Dose advice: How to use Bactrim Before you take Bactrim When you must not take it Do not take Bactrim if: You have had an allergic reaction to sulfamethoxazole, trimethoprim, any other sulfonamide, or any of the ingredients listed here.
Some of the symptoms of an allergic reaction may include: Skin rash ; Peeling of the skin; Itching or hives; Swelling of the face, lips or tongue which may cause difficulty in swallowing or breathing; Wheezing or shortness of breath. You have severe liver or kidney disease, any blood disorder or megaloblastic anaemia ; The child you are treating is less than 3 months of age; You have streptococcal pharyngitis; The package is torn or shows signs of tampering; You are taking dofetilide, a medicine used to treat irregular heartbeats; The expiry date EXP printed on the pack has passed.
If you take this medicine after the expiry date has passed, it may not work as well. If you are not sure if you should be taking Bactrim, talk to your doctor.
Before you start to take it Your doctor must know about all the following before you can start to take Bactrim. May cause birth defects. Do not use if you are pregnant. Tell your doctor if you become pregnant. This medicine should not be given to a child younger than 2 months old. Get emergency medical help if you have signs of an allergic reaction hives, cough, chest pain, shortness of breath, swelling in your face or throat or a severe skin reaction fever, sore throat, burning eyes, skin pain, red or purple skin rash with blistering and peeling.
Seek medical treatment if you have a serious drug reaction that can affect many parts of your body. Symptoms may include: skin rash, fever, swollen glands, joint pain, muscle aches, severe weakness, pale skin, unusual bruising, or yellowing of your skin or eyes. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.
If you use the injection form of this medicine, do not eat or drink anything that contains propylene glycol an ingredient in many processed foods, soft drinks, and medicines. Dangerous effects could occur. Sulfamethoxazole and trimethoprim could make you sunburn more easily. Avoid sunlight or tanning beds. Wear protective clothing and use sunscreen SPF 30 or higher when you are outdoors.
Do not use in larger or smaller amounts or for longer than recommended. Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed. Shake the oral suspension liquid. Measure a dose with the supplied measuring device not a kitchen spoon. Sulfamethoxazole and trimethoprim injection is given in a vein. Be sure you understand how to properly mix this medicine with a liquid diluent and how to store the mixture.
Ask your doctor or pharmacist if you don't understand how to use an injection. If your symptoms do not improve or if they get worse, call your doctor. Take co-trimoxazole until you finish the prescription, even if you feel better. Do not stop taking co-trimoxazole without talking to your doctor. If you stop taking co-trimoxazole too soon or skip doses, your infection may not be completely treated and the bacteria may become resistant to antibiotics. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.
Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one. Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture not in the bathroom.
It is important to keep all medication out of sight and reach of children as many containers such as weekly pill minders and those for eye drops, creams, patches, and inhalers are not child-resistant and young children can open them easily.
To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location — one that is up and away and out of their sight and reach. Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them.
However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. In case of overdose, call the poison control helpline at If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at Keep all appointments with your doctor and the laboratory.
Your doctor will order certain lab tests to check your response to co-trimoxazole. Before having any laboratory test, tell your doctor and the laboratory personnel that you are taking co-trimoxazole.
Do not let anyone else take your medication.
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