Labels

Showing posts with label pharmacy. Show all posts
Showing posts with label pharmacy. Show all posts

Monday, November 28, 2011

STAVUDINE (d4T)

Antiviral Activity

Used in the treatment of HIV-1 infection in combination with at least two additional antiretroviral agents
Active against susceptible HIV strains

Pregnancy Risk Factor

Category C

Contraindication/Precaution

Hypersensitivity to stavudine or to any of its components
HIV-infected mothers should not breast-feed in order to avoid transmission to a non-infected newborn
Do not use in the presence of bone marrow depression
Use caution in the presence of impaired liver/renal function
Use caution in the presence of peripheral Neuropathy, lactic acidosis/severe hepatomegaly with Steatosis

Mechanism of Action

Inhibits viral DNA synthesis by causing DNA chain termination because stavudine lacks the 3'-hydroxyl group necessary for DNA elongation
Also inhibits cellular DNA polymerase beta and gamma, and markedly reduces the synthesis of mitochondrial DNA

Pharmacodynamics/Kinetics

Metabolism: 
Not elucidated yet in humans
Half-life: 
1.25 hours
Elimination: 
Renal (40%)

Dosage

Children : 

< 30 kg of body weight: 1 mg/kg PO q12h 30-60 kg of body weight:  30 mg PO bid Adults:   < 60 kg of body weight: 30 mg PO bid   ³ 60 kg of body weight: 40 mg PO bid Dosage In Renal Failure Creatinine clearance (ml/min): 10-25: 20 mg PO q24h (15 mg if less then 60 kg) 26-50: 20 mg PO q12h (15 mg if less then 60 kg) >50: unchanged
Dialysis
Hemo: 20 mg q24h (³60 kg) or 15 mg q24h (<60 kg)
CAPD: N/A

CYCLOSERINE

Antibacterial activity

Used in combination with other antituberculosis medications in the treatment of pulmonary tuberculosis caused by Mycobacterium tuberculosis after failure with the primary medications (isoniazid, aminosalicylic acid, streptomycin, ethambutol, and rifampin) or when these cannot be used because of toxicity or development of resistant tubercle bacilli
Also used in the treatment of atypical mycobacterial infections, such as Mycobacterium avium complex

Pregnancy Risk Factor

Class C

Contraindication/Precaution

Do not use in the presence of:
hypersensitivity to cycloserine or any component
epilepsy
depression
severe anxiety, or psychosis
sever renal insufficiency
excessive concurrent use of alcohol
Do not use if nursing
Safety of the use of cycloserine in infants and children has not been established.

Mechanism of Action

Inhibits bacterial cell wall synthesis by competing with amino acid (D-alanine) for incorporation into the bacterial cell wall; bacteriostatic or bactericidal

Pharmacodynamics

Metabolism: liver
Half-life: 10 hours, changes with renal function
Elimination: excreted in urine and some in feces

Dosage

Children: (max 1000 mg/day)

Safety of the use of capreomycin sulfate in infants and children has not been established.
But 10-20 mg/kg/day PO div bid  for 18-24 months have been used

Adults: (max 1000 mg/day)

250 mg PO q12h for 14 days then 
0.5-1 g/day div bid for 18-24 months
always administered in combination with at least 1 other antituberculosis agent

Dose VS renal function

Cr. clearance (ml/min):
<10: give q36-48h 10-50: give q24h >50: unchanged

Dialysis
Hemo: N/A
CAPD:  N/A

PENICILLIN G

Antibacterial Activity

Effective against gram-positive cocci
Effective against most anaerobe
Not effective against gram-negative aerobe or b-lactamase producing organisms

Pregnancy Risk Factor

Category B

Contraindication/Precaution

Hypersensitivity to penicillin G or any penicillins or any component 
Use caution with patient who are allergic to cephalosporin, they could have an hypersensibility to penicillins
Use caution if  seizure disorder
Use caution if impaired renal function or other nephrotoxic agents are used

Mechanism of Action

Selective inhibitors of bacterial cell wall synthesis, by binding to penicillins binding proteins (PBP'S)

Pharmacodynamics/Kinetics

Metabolism: 
liver (partially)
Half-life: 
0.5 hour, change with renal function.
Elimination: 
excreted  in urine

Dosage

Children:

Body weight < 2000 g 0-7 days old: 50000 u IV q12h 8-28 days old: 75000  u IV q8h Body weight > 2000 g
0-7 days old: 50000 u IV q8h
8-28 days old: 50000 u IV q6h
> 28 days old: 50000 u IV q6h

Adults: 

0.5-4 million u IV q4h

Dosage In Renal Failure

Creatinine clearance (ml/min):
10: give 20-50% of normal dose
10-50: give 75% of normal dose
50-80: unchanged
>80: unchanged
Dialysis
Hemo: after dialysis: give 20-50% of normal dose
CAPD: give 20-50% of normal dose

CROTAMITON

Antibacterial Activity

Use for the eradication of scabies (Sarcoptes scabiei) and for symptomatic treatment of pruritic skin

Pregnancy Risk Factor

Category C

Contraindication/Precaution

Hypersensitivity to crotamiton or any component
Do not used on inflamed or raw skin
Avoid contact with face, eyes, mucous membranes, and urethral meatus
Safety and effectiveness in pediatric patients have not been established

Mechanism of Action

Mechanism of action unknown

Pharmacodynamics/Kinetics

Metabolism: 
N/A
Half-life: 
N/A
Elimination: 
N/A

Dosage

Children and Adults:

Scabicide:
apply from chin to toes qd for 2 days, bathe 48h after last application
Pruritus:
apply to affected area prn

Dosage In Renal Failure

Creatinine clearance (ml/min):
N/A
Dialysis
Hemo: N/A
CAPD: N/A

CLOXACILLIN

Antibacterial Activity

Effective against Gram-positive cocci including the b-lactamase producers
Effective against some streptococci
Not effective against gram-negative & anaerobes

Pregnancy Risk Factor

Category B

Contraindication/Precaution

Hypersensitivity to cloxacillin or any penicillins or any component 
Use caution with patient who are allergic to cephalosporin, they could have an hypersensibility to penicillins
Use caution if impaired liver/renal function

Mechanism of Action

Selective inhibitors of bacterial cell wall synthesis, by inhibiting to penicillins binding proteins (PBP'S)

Pharmacodynamics/Kinetics

Metabolism: 
Partially by the kidney
Half-life: 
0.5-1.5 hours, change with renal/hepatic function.
Elimination: 
mostly excreted  in urine, and some in feces

Dosage

Children: (max 4g/day)

> 28 days old: 50-100 mg/kg/d IV/PO div qid

Adults:  

250-500 mg q6h IV/PO

Dosage In Renal Failure

Creatinine clearance (ml/min):
10: unchanged
10-50: unchanged
50-80: unchanged
>80: unchanged
Dialysis
Hemo: N/A
CAPD: N/A

CLOTRIMAZOLE

Antifungal activity

Effective treatment for topical candidiasis, Tinea corporis/cruris/pedis/versicolor
Active against Candida sp., tinea versicolor due to Malassezia furfur, Trichophyton rubrum, Trichophyton mentagrophytes, Epidermophyton floccosum, and Microsporum canis.

Pregnancy Risk Factor

Class B

Contraindication/Precaution

Hypersensitivity to clotrimazole , or any component
Only for topical use (not ophthalmic)
Use caution if nursing mother
Safety and effectiveness of clotrimazole lozenges (troches) in children <3 years of age have not been established Mechanism of Action Binds to phospholipids in the fungal cell membrane altering cell wall permeability resulting in loss of essential intracellular elements Pharmacodynamics Metabolism: N/A Half-life: N/A Elimination: excreted in urine and feces Dosage Topical 1% cream/lotion/solution Children and Adults: Cover affected and immediately surrounding skin Tinea multiple forms:  apply bid  Candidiasis cutaneous: apply bid Oral (Troches) Children > 3 years and adults:
TX: 10 mg PO 5x/day for 14 days
Prophylaxis: 10 mg PO 3x/day

Vaginal:

Children >12 years and Adults:
cream: apply intra-vaginaly qhs for 7 days
vaginal suppository: 100 mg/day for 7 days or 500 mg single dose

Dose VS renal function

Cr. clearance (ml/min):
N/A

Dialysis
Hemo: N/A
CAPD: N/A

CLOFAZIMINE

Antibacterial Activity

Used in the treatment of dapsone-resistant leprosy, multibacillary dapsone-sensitive leprosy, erythema nodosum leprosum and Mycobacterium avium-intracellulare (MAI) infections

Pregnancy Risk Factor

Category C

Contraindication/Precaution

Hypersensitivity to clofazimine or any component
Use with caution in patients with GI problems
Use with caution if nursing
Dosages of clofazimine of more than 100 mg daily should be given for as short a period as possible and only under close medical supervision
Safety and effectiveness in children have not been established

Mechanism of Action

Binds preferentially to mycobacterial DNA to inhibit mycobacterial growth; also has some anti-inflammatory activity through an unknown mechanism

Pharmacodynamics/Kinetics

Metabolism: 
liver, partially
Half-life: 
terminal: 8 days
in tissue: 70 days
Elimination: 
excreted in feces

Dosage

Children: 

Treatment of leprosy:

Safety and effectiveness in children have not been established
Several cases of children treated with clofazimine have been reported in the literature.
1 mg/kg PO qd in combination with dapsone and rifampin

Adults:  

Dapsone-resistant leprosy: 
100 mg PO qd in combination with one or more antileprosy drugs for 36 months then
100 mg PO qd as single drug
Dapsone-sensitive multibacillary leprosy: 
100 mg PO qd in combination with two or more antileprosy drugs for at least 24 months and continue until negative skin smears are obtained, then institute single drug therapy with appropriate agent
Erythema nodosum leprosum: 
100-200 mg PO qd for up to 3 months or longer then 
taper dose to 100 mg PO qd
Pyoderma gangrenosum: 
300-400 mg PO qd for up to 12 months

Dosage In Renal Failure

Creatinine clearance (ml/min):
N/A
Dialysis
Hemo: N/A
CAPD: N/A

IODOCHLORHYDROXYQUIN/CLIOQUINOL

Antibacterial activity

Used in the topical treatment of tinea pedis, tinea cruris, and skin infections caused by dermatophytic fungi (ringworm)

Pregnancy Risk Factor

Class C

Contraindication/Precaution

Do not use if  hypersensitivity to clioquinol or any component

Mechanism of Action

Chelates bacterial surface and trace metals needed for bacterial growth

Pharmacodynamics

Metabolism: N/A
Half-life: 11-14 hours
Elimination: excreted in urine

Dosage

Children and Adults: 

Apply to skin bid-tid; do not use for longer than 7 days

Dose VS renal function

Cr. clearance (ml/min):
N/A

Dialysis
Hemo: N/A
CAPD: N/A

CLINDAMYCIN

Antibacterial Activity

Cover gram-positives and most anaerobes

Pregnancy Risk Factor

Category B

Contraindication/Precaution

Hypersensitivity to clindamycin or any component
Can cause pseudomembranous colitis and reversible liver enzyme elevation, do not give if previous pseudomembranous colitis or hepatic impairment

Mechanism of Action

Inhibits protein synthesis by reversibly binding to 50S ribosomal subunits 

Pharmacodynamics/Kinetics

Metabolism: 
liver
Half-life: 
1.6-5.3 hours, average: 2-3 hours
Elimination: 
others or unknown

Dosage

Children: IV

Body weight < 2000 g 0-7 days old: 5 mg/kg IV q12h 8-28 days old: 5 mg/kg IV q8h Body weight > 2000 g
0-7 days old: 5 mg/kg IV q8h
8-28 days old: 5 mg/kg IV q6h
> 28 days old:  7.5 mg/kg IV q6h or 5-6 mg/kg PO q8h

Adults:  

PO: 150-300 mg q6h
IV: 300-900 mg q6-8h (max 2.7 g DIE)

Dosage In Renal Failure

Creatinine clearance (ml/min):
<10: unchanged 10-50: unchanged 50-80: unchanged >80: unchanged

CLARITHROMYCIN

Antibacterial Activity

Effective against bacteria lacking cell wall (eg. mycoplasma, legionella, chlamydia)
Effective against gram-positive aerobes
Effective against gram-negative aerobes except: campylobacter, pasteurella and some H. influenza
Poor anaerobic coverage

Pregnancy Risk Factor

Category C

Contraindication/Precaution

Hypersensitivity to clarithromycin or macrolides or any component
Not to used be if concomitant cisapride, terfenadine or astemizole usage
Use caution if impaired liver/renal function

Mechanism of Action

Prevents translocation of polypeptide chain by binding to the P site of the ribosomal 50s subunit

Pharmacodynamics/Kinetics

Metabolism: 
liver
Half-life: 
5-7 hours, changes with renal function.
Elimination: 
mostly excreted  in feces (bile), and some in uurine

Dosage 

Children: 

> 28 days old: 7.5 mg/kg PO q12h (max 1 g/d)

Adults:  

PO: 250-500 mg q12h

Dosage In Renal Failure

Creatinine clearance (ml/min):
<10: give 50-75% of usual dose 10-50: give 75% of usual dose 50-80: unchanged >80: unchanged
Dialysis
Hemo: dose post-dialysis: 75% of usual dose x1
CAPD: none

CIPROFLOXACIN

Antibacterial activity

Enteric gram-negative bacilli.
Limited gram-positive coverage.
No anaerobic coverage.

Pregnancy Risk Factor

Class C

Contraindication/Precaution

Hypersensitivity to ciprofloxacin, other quinolones or any component
Do not use if pregnancy/lactating patient
Use caution if CNS/seizure disorder

Mechanism of Action

Prevents supercoiling of nucleic acids of bacteria.

Pharmacodynamics

Metabolism: Partially metabolized in the liver.
Half-life: 4 hours.
Elimination: 50% renal, 40% biliary.

Dosage

Children: (with exception of Cystic Fibrosis, not approved under 18 years old)

> 28 days old: 20-30 mg/kg/d PO div bid (max 1.5 g/d)

Adults:

PO: 250-750 mg q12h
IV: 200-400 mg q8-12h

Ophthalmic: 

Children/adults:
1-2 drops  q2h while awake for 2 days then 
1-2 drops q4h while awake for  5 days

Dose VS renal function

Cr. clearance: ml/min
<10: q24h 10-50: PO: 250-500 mg q12h; IV: q12-24h 50-80: unchanged >80: unchanged
Dialysis
Hemo: 50% of normal dose q12h
CAPD: 50% of normal dose q8h

CINOXACIN

Antibacterial activity

Enteric gram-negative bacilli.
Limited gram-positive coverage.
No anaerobic coverage.
Has less intrinsic bactericidal activities compare to other quinolones

Pregnancy Risk Factor

Class C

Contraindication/Precaution

Hypersensitivity to cinoxacin, other quinolones or any component
Do not use if pregnancy/lactating patient
Use caution if CNS/seizure disorder
Not recommended in children <18 years of age. Mechanism of Action Prevents supercoiling of nucleic acids of bacteria. Pharmacodynamics Metabolism: Partially metabolized in the liver. Half-life: 1.5 hours, changes with renal function Elimination: renal Dosage Children:   not approved under 18 years old Adults: 250 mg PO q6h or 500 mg PO q12h (qd for prophylaxis) Dose VS renal function Cr. clearance: ml/min <10: 250 PO q24h (do not use if anuria) 10-50: 250 PO q12-24h 50-80: 250 mg PO q8h >80: unchanged
Dialysis
Hemo: post dialysis dose of 50% normal dose q12h
CAPD: 50% of normal dose q8h

Saturday, November 19, 2011

CIDOFOVIR

Antibacterial activity

Active against CMV
Active against others herpes viruses (but not approved for their Tx)

Pregnancy Risk Factor

Class C

Contraindication/Precaution

Cidofovir is indicated for the treatment of CMV retinitis in patients with acquired immunodeficiency syndrome (AIDS) only
IV prehydratation and administration of probenecid MUST be used with each cidofovir infusion
Hypersensitivity to cidofovir, or any component
Do not use with nursing mothers
Must monitor renal function and adjust dosage accordingly
Monitor neutrophil counts, could cause granulocytopenia
Safety and effectiveness in children have not been studied.
Use caution if renal dysfunction or if other nephrotoxic agents present

Mechanism of Action

Suppresses CMV replication by selective inhibition of viral DNA synthesis.

Pharmacodynamics

Metabolism: N/A
Half-life: ~3 hours, changes with renal function
Elimination: excreted in urine

Dosage

Cidofovir is indicated for the treatment of CMV retinitis in patients with acquired immunodeficiency syndrome (AIDS) only
IV prehydratation and administration of probenecid MUST be used with each cidofovir infusion

Children and Adults:

Safety and effectiveness in children have not been studied.

Administration to children should be undertaken only after careful evaluation and only if the potential benefits of treatment outweigh the risks.

Administer with probenecid - 2 g PO 3 hours prior to each cidofovir dose and 1 g at 2 and 8 hours after completion of the infusion (total: 4 g)

Induction: 
(5 mg/kg IV (administer over 1 hrs) qwk with probenecid) for 2 weeks
Maintenance: 
5 mg/kg IV (administer over 1 hrs) q2wks with probenecid

Dose VS renal function

Induction, Cr. clearance (ml/min) :
<19: 0.5 mg/kg IV  qwk 20-29: 1 mg/kg IV qwk 30-40: 1.5 mg/kg IV qwk 41-55:  2 mg/kg IV  qwk >55: unchanged

Maintenance, Cr. clearance (ml/min) :
<19: 0.5 mg/kg IV  q2wk 20-29: 1 mg/kg IV q2wk 30-40: 1.5 mg/kg IV q2wk 41-55:  2 mg/kg IV  q2wk >55: unchanged

Dialysis
Hemo: N/A
CAPD: N/A

PRIMAQUINE + CHLOROQUINE

Antibacterial activity

Used for prophylaxis of malaria, regardless of species, in all areas where the disease is endemic
Primaquine: effective against Plasmodium vivax,  P. ovale and the gametocyte of  P. falciparum
Chloroquine: effective against Plasmodium vivax, Plasmodium malariae and most strains of Plasmodium falciparum (but not the gametocytes of P. falciparum) and also has amebicidal activity (ex. Entamoeba histolytica)

Pregnancy Risk Factor

Class C

Contraindication/Precaution

Hypersensitivity to primaquine, chloroquine or any component
Do not use concomitantly with quinacrine
Do not use in the presence of retinal or visual field changes, follow visual acuity
Do not use in the presence of porphyria
Do not use if bone marrow depression/suppression
Do not use with nursing mothers
Use caution if G-6-PD deficiency
Use caution if impaired liver function or  liver disease
Use caution if GI disorders
Use caution  in the presence of psoriasis
Use caution if NADH methemoglobin reductase deficiency
Safety and effectiveness in children have not been established, however, no pediatrics-specific problems have been documented to date

Mechanism of Action

Primaquine: eliminates the primary tissue exoerythrocytic forms of P. falciparum; disrupts mitochondria and binds to DNA
Chloroquine: not completely understood: binds to and inhibits DNA and RNA polymerase

Pharmacodynamics

Metabolism: liver
Half-life: 
primaquine 3.7-7.4 hours
chloroquine: 3-5 days
Elimination: excreted in urine

Dosage

Note: 15 mg primaquine base = 26.3 mg primaquine phosphate

Note: 150 mg chloroquine base = 250 mg chloroquine phosphate

Start at least 1 day before entering the endemic area; continue for 8 weeks after leaving the endemic area

Children (based on weight):

4.5-6.8 kg: 
20 mg Chloroquine base + 3 mg primaquine base PO qwk
7.3-11.4 kg:
40 mg Chloroquine base + 6 mg primaquine base PO qwk
11.8-15.9 kg:
60 mg Chloroquine base + 9 mg primaquine base PO qwk
20.9-25 kg:
80 mg Chloroquine base + 12 mg primaquine base PO qwk
16.4-20.5 kg:
100 mg Chloroquine base + 15 mg primaquine base PO qwk
25.4-45.4 kg:
150 mg Chloroquine base + 22.5 mg primaquine base PO qwk
>45.4 kg:
300 mg Chloroquine base + 45 mg primaquine base PO qwk

Adults:

300 mg Chloroquine base + 45 mg primaquine base PO qwk

Dose VS renal function

Cr. clearance (ml/min):
N/A

Dialysis
Hemo: N/A
CAPD: N/A

CHLOROQUINE

Antibacterial activity

Use for treatment and prophylaxis of malaria and treatment of extra intestinal amebiasis
Effective against Plasmodium vivax, Plasmodium malariae and most strains of Plasmodium falciparum (but not the gametocytes of P. falciparum) and also has amebicidal activity (ex. Entamoeba histolytica)

Pregnancy Risk Factor

Class C

Contraindication/Precaution

Hypersensitivity to chloroquine phosphate or any component
Do not use in the presence of retinal or visual field changes, follow visual acuity
Do not use in the presence of porphyria
Do not use with nursing mothers
Use caution if impaired liver function or  liver disease
Use caution if GI disorders
Use caution in the presence of G-6-PD deficiency
Use caution in the presence of neurologic disease
Use caution  in the presence of psoriasis

Mechanism of Action

Not completely understood: binds to and inhibits DNA and RNA polymerase

Pharmacodynamics

Metabolism: liver. partially
Half-life: 3-5 days
Elimination: ~70% excreted in urine

Dosage

Note: 250 mg chloroquine phosphate=150 mg chloroquine base

Children:

Suppression or prophylaxis of malaria: (max 300 mg base/dose)
begin 1-2 weeks prior to exposure: 5 mg base/kg PO qwk until 4-8 weeks after leaving endemic area
if not begun prior to exposure:  10 mg base/kg PO qwk (in 2 divided doses 6 hours apart) followed by the usual dosage regimen
Malaria treatment: (max 300 mg base/dose)
10 mg base/kg PO on day 1 then
5 mg base/kg PO 6 hours later then
5 mg base/kg PO on day 2 and 3
Amebiasis, extra intestinal: (max 300 mg base/dose)
10 mg base/kg PO qd for 2-3 weeks

Adults:

Suppression or prophylaxis of malaria:
begin 1-2 weeks prior to exposure: 500 mg PO qwk until 4-8 weeks after leaving endemic area
if not begun prior to exposure:  1 g PO qwk (in 2 divided doses 6 hours apart) followed by the usual dosage regimen
Malaria treatment: 
1 g PO on day 1 then
500 mg PO 6 hours later then
500 mg PO on day 2 and 3
Amebiasis, extra intestinal: 
1 g PO qd for 2 days then
500 mg Po qd for 2-3 weeks

Dose VS renal function

Cr. clearance (ml/min):
<10:  Administer 50% of dose >10: unchanged

Dialysis
Hemo: N/A
CAPD: N/A

CHLORAMPHENICOL

Antibacterial Activity

Active against most of the vancomycin-resistant enteroccoci
Excellent coverage of both gram-positives and gram-negatives
Active against anaerobes

Pregnancy Risk Factor

Category C

Contraindication/Precaution

Hypersensitivity to chloramphenicol or any component
Use with caution in patients with impaired renal or hepatic function and in neonates
Use with caution in patients with glucose 6-phosphate dehydrogenase deficiency
Can cause reversible or irreversible bone marrow depression, leukopenia, aplastic anemia, toxic level in newborn ( grey baby syndrome)

Mechanism of Action

Inhibits protein synthesis by reversibly binding to 50S ribosomal subunits 

Pharmacodynamics/Kinetics

Metabolism: 
liver
Half-life: 
1.6-3.3 hours, change with liver (or renal) function.
Elimination: 
excreted  in urine

Dosage

Children: IV

> 28 days old: 15.5-25 mg/kg IV q6h (max 2-4 g/d)

Adults:  

PO: 125-200 mg q12h

Ophthalmic: 

Children/adults: 
1-2 drops q3-4h for 48 hours then
1-2 drops bid-qid

Dosage In Renal Failure

Creatinine clearance (ml/min):
<10: 100 q24h
10-50: 200 q24h
50-80: 200 q24h
Dialysis
Hemo: 125-250 mg
CAPD: 100 mg

CEPHRADINE

Antibacterial activity

Cephalosporins, first generation
Gram-positive cocci (except ORSA/MRSA and enteroccocus species)
Gram negative bacilli ( E. coli, klebsiella, p. mirabillis)

Pregnancy Risk Factor

Class B

Contraindication/Precaution

Hypersensitivity to cephradine, other cephalosporins or any component
Use caution if previous penicillins hypersensitivity:  10% of patient may have cross-hypersensitivity to cephalosporins
Use caution with nursing mothers
Use caution if renal dysfunction or if other nephrotoxic agents present
Use caution if history of ATB related colitis
Safety and efficacy in children <9 month of age have not been established Mechanism of Action Inhibits cell wall synthesis (bactericidal) Pharmacodynamics Metabolism: N/A Half-life: 1-2 hours, changes with renal function Elimination: excreted in urine Dosage Children: (max 4 g/d) > 9 months old:
25-100 mg/kg/day PO div q6-12h

Adults: (max 4 g/day)

Bacterial infections:
250-500 mg PO q6-12h

Dose VS renal function

Cr. clearance (ml/min):
<10: 125 mg PO q6h 10-50: 250 mg PO q6h 50-80: unchanged >80: unchanged

Dialysis
Hemo: N/A 
CAPD: N/A

CEPHAPIRIN

Antibacterial activity

Cephalosporins, first generation
Gram-positive cocci (except ORSA/MRSA and enteroccocus species)
Gram negative bacilli ( E. coli, klebsiella, p. mirabillis)

Pregnancy Risk Factor

Class B

Contraindication/Precaution

Hypersensitivity to cephapirin, other cephalosporins or any component
Use caution if previous penicillins hypersensitivity:  10% of patient may have cross-hypersensitivity to cephalosporins
Use caution with nursing mothers
Use caution if renal dysfunction or if other nephrotoxic agents present
Use caution if history of ATB related colitis

Mechanism of Action

Inhibits cell wall synthesis (bactericidal)

Pharmacodynamics

Metabolism: N/A
Half-life: 0.5-1 hours, changes with renal function
Elimination: excreted in urine

Dosage

Children: (max 4 g/d)

10-20 mg/kg IM/IV q6h

Adults: (max 12 g/day)

Bacterial infections:
500-1000 mg IM/IV q4-6h
Prophylaxis:
1-2 g IM/IV given 30-60 min before surgery then q6h post-op

Dose VS renal function

Cr. clearance (ml/min):
<10: give q12h 10-50:give q6-8h 50-80: unchanged >80: unchanged

Dialysis
Hemo: N/A
CAPD: N/A

CEPHALOTHIN

Antibacterial activity

Cephalosporins, first generation
Gram-positive cocci (except ORSA/MRSA and enteroccocus species)
Gram negative bacilli ( E. coli, klebsiella, p. mirabillis)

Pregnancy Risk Factor

Class B

Contraindication/Precaution

Hypersensitivity to cephalothin, other cephalosporins or any component
Use caution if previous penicillins hypersensitivity:  10% of patient may have cross-hypersensitivity to cephalosporins
Use caution with nursing mothers
Use caution if renal dysfunction or if other nephrotoxic agents present
Use caution if history of ATB related colitis

Mechanism of Action

Inhibits cell wall synthesis (bactericidal)

Pharmacodynamics

Metabolism: liver and kidney
Half-life: 0.5-1 hours, changes with renal function
Elimination: excreted in urine

Dosage

Children: (max 10 g/d)

Body weight < 2000 g 0-7 days old:  20 mg/kg IM/IVq12h 8-28 days old:  20 mg/kg IM/IV q8h Body weight > 2000 g
0-7 days old:  20 mg/kg IM/IV q8h
8-28 days old:  20 mg/kg IM/IV q6h
> 28 days old:  75-125 mg/kg/day div IM/IV q4-6h

Adults:

Bacterial infections:
500-1000 mg IM/IV q4-6h
Prophylaxis:
1-2 g IM/IV given 30-60 min before surgery then q6h post-op

Dose VS renal function

Cr. clearance (ml/min):
<10: give q12h 10-50:give q6-8h 50-80: unchanged >80: unchanged

Dialysis
Hemo: N/A
CAPD: N/A

CEPHALEXIN

Antibacterial activity

Cephalosporins, first generation
Gram-positive cocci (except ORSA/MRSA and enteroccocus species)
Gram negative bacilli ( E. coli, klebsiella, p. mirabillis)

Pregnancy Risk Factor

Class B

Contraindication/Precaution

Hypersensitivity to cephalexin, other cephalosporins or any component
Use caution if previous penicillins hypersensitivity:  10% of patient may have cross-hypersensitivity to cephalosporins
Use caution if seizure disorder
Use caution with nursing mothers
Use caution if renal dysfunction or if other nephrotoxic agents present
Use caution if history of ATB related colitis
Safety and effectiveness for use in infants <1 month of age have not been established Mechanism of Action Inhibits cell wall synthesis (bactericidal) Pharmacodynamics Metabolism: N/A Half-life: 0.5-1.2 hours, changes with renal function Elimination: excreted in urine Dosage Children: (max 4 g/d) > 28 days old: 
25-50 mg/kg/d PO div qid

Adults:

Bacterial infections:
250-1000 mg PO q6h

Dose VS renal function

Cr. clearance (ml/min):
<10: 250 mg PO q12-24h 10-50: 250-500 q8-12h 50-80: unchanged >80: unchanged

Dialysis
Hemo: 0.25-1g PO post dialysis
CAPD: N/A