What is Cephalexin?

Category: Prescription Drugs

Most popular types: Keflex Cephalex Apo-Cephalex

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Cephalexin is a cephalosporin antibiotic used to treat certain infections caused by bacteria such as pneumonia and bone, ear, skin, and urinary tract infections.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Prevent infection 37 26
Cellulitis 8 7
Urinary tract infection 7 11
Bacterial overgrowth syndrome 5 2
Bladder problems 4 4

Show all 42 reasons taken


  • Major
  • Moderate
  • Slight
  • None
  • Can't tell

Side effects

Side effects as an overall problem

Side effects as an overall problem
Severity Evaluations Percentage
Severe 9
Moderate 11
Mild 14
None 57

Commonly reported side effects and conditions associated with Cephalexin

Side effect Patients Percentage
Diarrhea 7
Constipation 2
Nausea 2
Nausea during and after eating 2
Abdominal cramps 1
Chronic diarrhea 1

Show all 24 reported side effects

Dosages

Based on patients currently taking Cephalexin

Dosage Patients Percentage
500 mg twice daily 2
250 mg daily 1
1000 mg daily 1
2000 mg four times daily 1
250mg as needed 1

Why patients stopped taking Cephalexin

Multiple reasons could be selected

Reason Patients Percentage
Course of treatment ended 78
Doctor's advice 15
Did not seem to work 10
Side effects too severe 8
Other 6
Change in health plan coverage 2
Personal research 2
See all 104 patients who've stopped taking Cephalexin

Duration

Currently taking Cephalexin

Duration Patients Percentage
Less than 1 month 1
6 months - 1 year 1
1 - 2 years 1
2 - 5 years 1
10 years or more 2

Stopped taking Cephalexin

Duration Patients Percentage
Less than 1 month 74
1 - 6 months 15
6 months - 1 year 4
1 - 2 years 5
2 - 5 years 8
5 - 10 years 2
Adherence
Adherence Evaluations Percentage
Always 72
Usually 10
Sometimes 5
Never taken as prescribed 4
Burden
Burden Evaluations Percentage
Very hard to take 7
Somewhat hard to take 10
A little hard to take 20
Not at all hard to take 54
Cost per month
Cost per month Evaluations Percentage
$200+ 0
$100-199 1
$50-99 2
$25-49 2
< $25 50
Not specified 36

What people switch to and from

Patients started taking Cephalexin after stopping:

Treatment Patients Percentage
Amoxicillin-clavulanate (Augmentin) 2
Doxycycline (Doxylin) 2
Erythromycin (Ery-Tab) 1
Nitrofurantoin (Macrodantin) 1
Sulfamethoxazole-Trimethoprim (cotrimoxazole) (Bactrim) 1

Patients stopped taking Cephalexin and switched to:

Treatment Patients Percentage
Nitrofurantoin (Macrodantin) 3
Sulfamethoxazole-Trimethoprim (cotrimoxazole) (Bactrim) 3
Amoxicillin-clavulanate (Augmentin) 1
Ceftriaxone (Rocephin) 1
Clindamycin (Clindamycin PH 1% Gel) 1

Show all 8 treatments patients report switching to

Last updated:

8 patient evaluations for Cephalexin

Jul 13, 2017 (Started Sep 02, 2016)

  • Effectiveness
    Major (for cellulitis)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 500 mg Four times daily

Sep 7, 2016 (Started Sep 02, 2016)

  • Effectiveness
    None (for bronchitis)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 500 mg Three times daily

  • 0 helpful marks

Jan 9, 2015 (Started Dec 13, 2014)

  • Effectiveness
    Can't tell (for Prevent infection)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 4 x 250 mg/5 mL Four times daily

  • 0 helpful marks

Apr 28, 2013 (Started Apr 15, 2013)

  • Effectiveness
    Moderate (for wound infection)
  • Side effects
    None
  • Adherence
    Usually
  • Burden
    Somewhat hard to take
Dosage: 2000 mg Daily

  • 0 helpful marks
Last updated:
Showing 3 of 8 patient evaluations for Cephalexin