Sulfamethoxazole and trimethoprim are tablet-based medications utilized for addressing bacterial infections. Categorized as an antibiotic, this medication can be ingested orally, accompanied by a glass of water, following the provided instructions.
How Long Is Sulfamethoxazole Good for After the Expiration Date?
The effectiveness and safety of medications, including Sulfamethoxazole, can be compromised after their expiration date. It's generally recommended not to use medications, especially antibiotics, beyond their expiration date, as their potency might decrease, making them less effective in treating infections. Additionally, the chemical composition of the medication can change over time, potentially leading to adverse effects.
If you have expired medication, it's best to dispose of it properly according to your local guidelines or consult with a healthcare professional or pharmacist for guidance on safe disposal and potential replacement. Always prioritize your health and safety by using medications within their recommended shelf life.
What is this medication?
This medication, known as Sulfamethoxazole; Trimethoprim (pronounced as suhl fuh meth OK suh zohl; trye METH oh prim), is used to address infections resulting from bacterial activity. It falls under the category of sulfonamide antibiotics and is not effective against illnesses like colds, the flu, or infections caused by viruses.
Read Also: Dicyclomine: Uses, Side Effects, Dosage & Reviews
What information should I provide to my healthcare team before taking this medication?
They should be informed if you have any of the following conditions:
- G6PD deficiency
- HIV or AIDS
- Kidney disease
- Liver disease
- Low platelets
- Low red blood cell counts
- Poor nutrition
- Stomach or intestine problems like colitis
- Thyroid disease
- Any unusual or allergic reaction to sulfamethoxazole, trimethoprim, sulfa medications, other medications, foods, dyes, or preservatives
- If you are pregnant or attempting to become pregnant
- If you are breast-feeding
How should I take this medication?
Consume this medication by mouth along with a glass of water. Adhere to the guidelines provided on the prescription label. Administer the medication at consistent intervals.
Avoid taking it more frequently than directed. Complete the full course of medication as prescribed, even if you feel better. Do not skip doses or discontinue the medication prematurely.
Consult your healthcare team regarding the usage of this medication in children. While it might be prescribed for children as young as 2 months for specific conditions, certain precautions are necessary.
In case of an overdose, promptly contact a poison control centre or emergency room.
What if I forget a dose?
If you miss a dose, take it as soon as you remember. If your next dose is nearly due, only take that scheduled dose. Do not take double or additional doses.
What can potentially interact with this medication?
Avoid taking this medication concurrently with the following:
- Dofetilide
Additionally, this medication might interact with the following substances:
- Amantadine
- Birth control pills
- Certain medications for blood pressure and heart disease
- Certain medications for depression, such as amitriptyline
- Certain medications for diabetes, like glipizide or glyburide
- Certain medications that treat or prevent blood clots, like warfarin
- Cyclosporine
- Digoxin
- Diuretics
- Indomethacin
- Methotrexate
- Phenytoin
- Procainamide
- Pyrimethamine
- Zidovudine
It's important to provide your healthcare provider with a comprehensive list of all medicines, herbs, non-prescription drugs, and dietary supplements you are using. Also, inform them about your alcohol consumption, smoking habits, or use of illegal drugs, as these factors can also influence interactions.
What precautions should I take while using this medication?
Inform your healthcare team if your symptoms do not show improvement or if they worsen.
Avoid self-treating diarrhoea with over-the-counter products. If you experience diarrhoea lasting more than 2 days or if it is severe and watery, contact your healthcare team.
This medication could lead to serious skin reactions, possibly appearing weeks to months after beginning the treatment. If you observe fevers or flu-like symptoms accompanied by a rash, promptly contact your healthcare team.
The rash might initially be red or purple and later develop into blisters or skin peeling. Alternatively, you might notice a red rash coupled with facial, lip, or lymph node swelling in your neck or underarms.
The medication may heighten your sensitivity to sunlight. Limit sun exposure and, if you can't avoid it, wear protective clothing and use sunscreen. Refrain from using sun lamps or tanning beds/booths.
Take care when brushing, flossing your teeth, or using toothpicks, as infections or increased bleeding tendencies can arise. If you undergo any dental procedures, inform your dentist about your use of this medication.
What potential side effects might occur from using this medication?
You should promptly inform your care team of the following side effects:
- Allergic reactions include skin rash, itching, hives, and swelling of the face, lips, tongue, or throat.
- Aplastic anaemia could manifest as unusual weakness or fatigue, dizziness, headaches, difficulty breathing, increased bleeding or bruising, fever, chills, cough, or a sore throat.
- Dry cough, shortness of breath, or difficulty breathing.
- Elevated potassium levels lead to muscle weakness and a fast or irregular heartbeat.
- Liver injury symptoms such as pain in the upper right abdomen, loss of appetite, nausea, light-coloured stools, dark yellow or brown urine, yellowing of the skin or eyes, and unusual weakness or fatigue.
- Low blood sugar (hypoglycemia) symptoms like tremors or shaking, anxiety, sweating, cold or clammy skin, confusion, dizziness, and rapid heartbeat.
- Low sodium levels, which could cause muscle weakness, fatigue, dizziness, headache, and confusion.
- Rash, fever, and swollen lymph nodes.
- Redness, blistering, peeling, or loosening of the skin, even inside the mouth.
- Severe diarrhoea accompanied by fever.
- The appearance of small, pus-filled bumps on the skin.
- Unusual vaginal discharge, itching, or odour.
On the other hand, the following side effects typically do not necessitate medical attention, but it's recommended to report them to your care team if they persist or cause discomfort:
- Loss of appetite.
- Nausea.
- Vomiting.
The content is intended to augment, not replace, information provided by your clinician. It is not intended nor implied to be a substitute for professional medical advice. Reading this information does not create or replace a doctor-patient relationship or consultation. If required, please contact your doctor or other health care provider to assist you in interpreting any of this information, or in applying the information to your individual needs.
