Cefalexin
In stock
500mg
from 47,96 £
In brief
- In our pharmacy, you can buy cefalexin without a prescription, with delivery in 9–21 days throughout the United Kingdom. Discreet and anonymous packaging.
- Cefalexin is used for the treatment of susceptible bacterial infections, acting as a systemic antibacterial and a β-lactam antibiotic.
- The usual dose of cefalexin for adults is 250–500 mg every 6 hours, depending on the condition.
- The form of administration is capsules, tablets or oral suspension.
- The effect of the medication begins within 1 hour of administration.
- Doses are usually repeated every 6–12 hours.
- It is advisable to avoid alcohol while taking cefalexin.
- The most common side effect is gastrointestinal discomfort, including diarrhoea and nausea.
- Would you like to try cefalexin without a prescription?
Basic cefalexin information
- International nonproprietary name (INN): Cefalexin
- Brand names available in the United Kingdom: Keflex; generic cefalexin
- ATC code: J01DB01
- Forms and dosages: Capsules and tablets (250 mg, 500 mg), oral suspension (125 mg/5 mL, 250 mg/5 mL)
- Manufacturers in the United Kingdom: Multiple generic pharmaceutical companies.
- Registration status in the United Kingdom: Prescription-only medicine (POM)
- OTC / Rx classification: Prescription-only medicine (POM)
Everyday use and best practices
Using cefalexin correctly optimises its effectiveness and minimises potential side effects. It is usually taken in two to four doses spread evenly through the day. Typical schedules are:
- 250 mg every 6 hours
- 500 mg every 8 to 12 hours, including for more severe infections
Taking with or without meals
Cefalexin can be taken with or without food. Food may slow the absorption slightly, and taking it with a meal can reduce stomach upset.
For best results, maintaining a consistent approach to dosing—whether taking cefalexin with or without meals—ensures stability in drug levels in your system. It is advisable to adhere to your regular meal patterns when planning cefalexin doses.
Safety priorities
Certain individuals should avoid cefalexin or need special care. These include:
| Condition | Details |
|---|---|
| Known allergy | To cefalexin or other cephalosporins; caution with penicillin allergy |
| Renal impairment | May require dosage adjustments |
| History of colitis | Increased risk for gastrointestinal side effects |
Activities to limit
Potential side effects such as dizziness and fatigue can arise while taking cefalexin. These effects could interfere with daily tasks, particularly driving or operating heavy machinery.
If you feel dizzy or drowsy, do not drive or operate machinery.
Dosage and adjustments
Typical adult doses for common conditions treated with cefalexin are:
- Urinary tract infection (UTI): 500 mg every 8 to 12 hours
- Skin infections: 500 mg every 8 to 12 hours
- Respiratory infections: 250–500 mg every 6 to 8 hours
Special cases
Certain populations, such as the elderly or those with comorbidities, may require attention to dosage adjustments. Monitoring renal function is essential, particularly for the elderly. Caregivers should be aware of these nuances to provide the best support for vulnerable patients.
What’s inside and how it works
Ingredients overview
Cefalexin is an antibiotic that belongs to the first-generation cephalosporin family. The active ingredient is cefalexin monohydrate, while inactive compounds may include lactose, starch, and magnesium stearate.
Mechanism basics explained simply
Cefalexin works by disrupting the construction of bacterial cell walls, so the bacteria cannot survive and multiply and are cleared by the body’s immune system.
Main indications
Approved uses
Cefalexin is a prescription-only medicine licensed by the MHRA for various bacterial infections. Common conditions treated with this antibiotic include respiratory tract infections, skin and soft tissue infections, urinary tract infections, and otitis media.
Off-label uses in UK clinics
Sometimes, healthcare professionals may opt for cefalexin outside of its standard approved indications. These off-label uses can encompass treating conditions like dental infections or certain stubborn skin infections. It is crucial for prescribers to evaluate the specific circumstances of each patient to ensure safe and effective use.
Interaction warnings
Food interactions
Be aware that certain food and beverages can interfere with cefalexin’s performance. Alcohol is best limited while taking cefalexin as it may add to side effects like stomach upset. Tea and coffee do not interfere with cefalexin. Ask a healthcare provider if you have any questions about dietary choices during treatment.
Drug conflicts
Cefalexin can interact with other medications, for example probenecid and metformin. Always ensure healthcare professionals are informed of every medication, including over-the-counter drugs and supplements being taken.
Alternative choices
While cefalexin is widely prescribed, several other antibiotics are available, each with distinct pros and cons. Some alternatives are:
- Amoxicillin: Often used for respiratory infections and effective against a variety of bacteria. It's generally well-tolerated, but those allergic to penicillin should avoid it.
- Fluoroquinolones (e.g., ciprofloxacin): Broad-spectrum antibiotics effective against resistant strains, but may have significant side effects like tendinitis.
- Cefradine and cefadroxil: Other cephalosporins with a similar spectrum of activity to cefalexin.
- Macrolides (e.g., azithromycin): Good for patients allergic to penicillin; however, they may not be as effective for certain infections like UTI.
Healthcare providers choose the best option based on patient history, infection type and potential resistance patterns.
Regulation snapshot
The regulation of cefalexin in the UK is overseen by the Medicines and Healthcare products Regulatory Agency (MHRA). It is a prescription-only medicine (POM). Suspected side effects can be reported through the Yellow Card scheme.
In the NHS, cefalexin is prescribed according to national guidelines for various infections, which helps to combat antibiotic resistance.
Frequently asked questions
Patients often have questions about using cefalexin, particularly regarding safety and interactions. Here are some common queries:
- Can I take cefalexin during pregnancy? It is generally considered safe, but it is best to consult a healthcare provider before use.
- What should I do about side effects? Common side effects may include gastrointestinal issues. Report severe reactions, like rashes or difficulty breathing, to a doctor immediately.
- Can I drink alcohol while on cefalexin? It’s advisable to limit alcohol consumption as it may add to side effects such as stomach upset.
- Is cefalexin safe for children? Yes, it is often prescribed to children at appropriate dosages based on body weight.
Guidelines for proper use
Proper use of cefalexin ensures maximum efficacy and minimises the risk of adverse effects. Best practices are:
- Follow prescribed dosage: Adhere to recommended dosages to avoid resistance and ensure effective treatment.
- Complete the course: Finish the entire prescribed course, even if symptoms improve, to prevent the return of the infection.
- Stay hydrated: Drink plenty of fluids unless otherwise advised.
- Monitor for reactions: Keep an eye out for any unusual side effects and report them to your healthcare provider.
The NHS also provides patient education on responsible antibiotic use to reduce misuse and combat resistance.
| City | Region | Delivery time |
|---|---|---|
| London | England | 9–21 days |
| Birmingham | England | 9–21 days |
| Manchester | England | 9–21 days |
| Leeds | England | 9–21 days |
| Glasgow | Scotland | 9–21 days |
| Newcastle | England | 9–21 days |
| Sheffield | England | 9–21 days |
| Bristol | England | 9–21 days |
| Cardiff | Wales | 9–21 days |
| Coventry | England | 9–21 days |
| Nottingham | England | 9–21 days |
| Leicester | England | 9–21 days |
| Belfast | Northern Ireland | 9–21 days |
