Methyldopa: Difference between revisions

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__NOTOC__
{{DrugProjectFormSinglePage
{{Methyldopa}}
|genericName=generic name
{{CMG}}; {{AE}}
|aOrAn=a
|drugClass=Adrenergic receptor agonist
|indication=a list of indications, separated by commas.
|hasBlackBoxWarning=Yes
|adverseReactions=a list of adverse reactions, separated by commas.
|blackBoxWarningTitle=Warning Title
|blackBoxWarningBody=<i><span style="color:#FF0000;">Condition Name:</span></i> (Content)
|fdaLIADAdult======Condition 1=====


'''''For patient information about Methyldopa, click [[Methyldopa (patient information)|here]].'''''
* Dosing Information


{{SB}}
:* (Dosage)
Methylodopa<sup>®</sup>


==Overview==
=====Condition 2=====
'''Methyldopa''' or '''alpha-methyldopa''' (brand names '''Aldomet®''', '''Apo-Methyldopa®''', '''Dopamet®''', '''Novomedopa®''') is a centrally-acting adrenergic [[antihypertensive]] medication. Its use is now deprecated following introduction of alternative safer classes of agents. However it continues to have a role in otherwise difficult to treat hypertension and [[pregnancy-induced hypertension]].
==Category==
Central adrengeric antihypertensives.


==FDA Package Insert==
* Dosing Information


====Methyldopa tablet<sup>®</sup>====
:* (Dosage)
|offLabelAdultGuideSupport======Condition 1=====


* Developed by: (Organisation)


'''  [[Methyldopa tablet indications and usage|Indications and Usage]]'''
* Class of Recommendation: (Class) (Link)
'''| [[Methyldopa tablet dosage and administration|Dosage and Administration]]'''
'''| [[Methyldopa tablet dosage forms and strengths|Dosage Forms and Strengths]]'''
'''| [[Methyldopa tablet contraindications|Contraindications]]'''
'''| [[Methyldopa tablet warnings |Warnings ]]'''
'''| [[Methyldopa tablet precautions| Precautions]]'''
'''| [[Methyldopa tablet adverse reactions|Adverse Reactions]]'''
'''| [[Methyldopa tablet drug interactions|Drug Interactions]]'''
'''| [[Methyldopa tablet use in specific populations|Use in Specific Populations]]'''
'''| [[Methyldopa tablet overdosage|Overdosage]]'''
'''| [[Methyldopa tablet description|Description]]'''
'''| [[Methyldopa tablet clinical pharmacology|Clinical Pharmacology]]'''
'''| [[Methyldopa tablet nonclinical toxicology|Nonclinical Toxicology]]'''
'''| [[Methyldopa tablet clinical studies|Clinical Studies]]'''
'''| [[Methyldopa tablet how supplied storage and handling|How Supplied/Storage and Handling]]'''
'''| [[Methyldopa tablet patient counseling information|Patient Counseling Information]]'''
'''| [[Methyldopa tablet labels and packages|Labels and Packages]]'''


====Methyldopa injection<sup>®</sup>====
* Strength of Evidence: (Category A/B/C) (Link)
'''  [[Methyldopa injection indications and usage|Indications and Usage]]'''
'''| [[Methyldopa injection dosage and administration|Dosage and Administration]]'''
'''| [[Methyldopa injection dosage forms and strengths|Dosage Forms and Strengths]]'''
'''| [[Methyldopa injection contraindications|Contraindications]]'''
'''| [[Methyldopa injection warnings| Warnings]]'''
'''| [[Methyldopa injection precautions|Precautions]]'''
'''| [[Methyldopa injection adverse reactions|Adverse Reactions]]'''
'''| [[Methyldopa injection drug interactions|Drug Interactions]]'''
'''| [[Methyldopa injection use in specific populations|Use in Specific Populations]]'''
'''| [[Methyldopa injection overdosage|Overdosage]]'''
'''| [[Methyldopa injection description|Description]]'''
'''| [[Methyldopa injection clinical pharmacology|Clinical Pharmacology]]'''
'''| [[Methyldopa injection nonclinical toxicology|Nonclinical Toxicology]]'''
'''| [[Methyldopa injection clinical studies|Clinical Studies]]'''
'''| [[Methyldopa injection how supplied storage and handling|How Supplied/Storage and Handling]]'''
'''| [[Methyldopa injection patient counseling information|Patient Counseling Information]]'''
'''| [[Methyldopa injection labels and packages|Labels and Packages]]'''


==Mechanism of action==
* Dosing Information/Recommendation
Methyldopa has variable absorption from the gut of approximately 50%. It is metabolized in the [[intestine]]s and [[liver]]; its metabolite alpha-methylnorepineprine acts in the [[brain]] to stimulate [[alpha-adrenergic receptor]]s decreasing [[total peripheral resistance]]. It is [[excretion|excreted]] in [[urine]].


Methyldopa, in its active metabolite form, leads to increased alpha-2 receptor-mediated inhibition of SNS (centrally and peripherally), allowing PSNS tone to increase. Such activity leads to a decrease in total peripheral resistance (TPR) and [[cardiac output]].
:* (Dosage)


If methyldopa is abruptly withdrawn, rebound hypertension happens. This results because the long term use of methyldopa lowers the sensitivity of presynaptic alpha 2 receptors: the release of [[norepinephrine]] (NE) from sympathetic nerve endings is modulated by NE itself acting on the  presynaptic alpha 2 autoreceptors thus inhibiting its own release. The discontinuation of methyldopa removes the inhibition on NE release leading to excessive NE release from the SNS and the rebound hypertension.<ref name="dailymed.nlm.nih.gov">{{Cite web  | last = | first = | title = METHYLDOPA TABLET [CARDINAL HEALTH] | url = http://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=d87d63fd-48f7-4130-af03-5e263c338fe4 | publisher = | date = | accessdate = 10 March 2014 }}</ref>
=====Condition 2=====


==References==
* Developed by: (Organisation)


{{Reflist|2}}
* Class of Recommendation: (Class) (Link)


[[Category:Cardiovascular Drugs]]
* Strength of Evidence: (Category A/B/C) (Link)
[[Category:Drugs]]
 
* Dosing Information/Recommendation
 
:* (Dosage)
|offLabelAdultNoGuideSupport======Condition 1=====
 
* Dosing Information
 
:* (Dosage)
 
=====Condition 2=====
 
* Dosing Information
 
:* (Dosage)
 
=====Condition 3=====
 
* Dosing Information
 
:* (Dosage)
|fdaLIADPed======Condition 1=====
 
* Dosing Information
 
:* (Dosage)
 
=====Condition 2=====
 
* Dosing Information
 
:* (Dosage)
|offLabelPedGuideSupport======Condition 1=====
 
* Developed by: (Organisation)
 
* Class of Recommendation: (Class) (Link)
 
* Strength of Evidence: (Category A/B/C) (Link)
 
* Dosing Information/Recommendation
 
:* (Dosage)
 
=====Condition 2=====
 
* Developed by: (Organisation)
 
* Class of Recommendation: (Class) (Link)
 
* Strength of Evidence: (Category A/B/C) (Link)
 
* Dosing Information/Recommendation
 
:* (Dosage)
|offLabelPedNoGuideSupport======Condition 1=====
 
* Dosing Information
 
:* (Dosage)
 
=====Condition 2=====
 
* Dosing Information
 
:* (Dosage)
 
=====Condition 3=====
 
* Dosing Information
 
:* (Dosage)
|contraindications=* Condition 1
* Condition 2
* Condition 3
* Condition 4
* Condition 5
|warnings======Conidition 1=====
 
(Description)
 
|clinicalTrials=======Central Nervous System======
 
: (list/description of adverse reactions)
 
======Cardiovascular======
 
: (list/description of adverse reactions)
 
======Respiratory======
 
: (list/description of adverse reactions)
 
======Gastrointestinal======
 
: (list/description of adverse reactions)
 
======Hypersensitive Reactions======
 
: (list/description of adverse reactions)
 
======Miscellaneous======
 
: (list/description of adverse reactions)
 
=====Condition 2=====
 
======Central Nervous System======
 
: (list/description of adverse reactions)
 
======Cardiovascular======
 
: (list/description of adverse reactions)
 
======Respiratory======
 
: (list/description of adverse reactions)
 
======Gastrointestinal======
 
: (list/description of adverse reactions)
 
======Hypersensitive Reactions======
 
: (list/description of adverse reactions)
 
======Miscellaneous======
 
: (list/description of adverse reactions)
|postmarketing=(Description)
|drugInteractions=* Drug 1
* Drug 2
* Drug 3
* Drug 4
* Drug 5
 
=====Drug 1=====
 
(Description)
 
=====Drug 2=====
 
(Description)
 
=====Drug 3=====
 
(Description)
 
=====Drug 4=====
 
(Description)
 
=====Drug 5=====
 
(Description)
|useInPregnancyFDA=(Description)
|useInPregnancyAUS=(Description)
|useInLaborDelivery=(Description)
|useInNursing=(Description)
|useInPed=(Description)
|useInGeri=(Description)
|useInGender=(Description)
|useInRace=(Description)
|useInRenalImpair=(Description)
|useInHepaticImpair=(Description)
|useInReproPotential=(Description)
|useInImmunocomp=(Description)
|othersTitle=Others
|useInOthers=(Description)
 
|administration=(Oral/Intravenous/etc)
|monitoring======Condition 1=====
 
(Description regarding monitoring, from ''Warnings'' section)
 
=====Condition 2=====
 
(Description regarding monitoring, from ''Warnings'' section)
 
=====Condition 3=====
 
(Description regarding monitoring, from ''Warnings'' section)
|IVCompat====Solution===
 
====Compatible====
 
* Solution 1
* Solution 2
* Solution 3
 
====Not Tested====
 
* Solution 1
* Solution 2
* Solution 3
 
====Variable====
 
* Solution 1
* Solution 2
* Solution 3
 
====Incompatible====
 
* Solution 1
* Solution 2
* Solution 3
 
===Y-Site===
 
====Compatible====
 
* Solution 1
* Solution 2
* Solution 3
 
====Not Tested====
 
* Solution 1
* Solution 2
* Solution 3
 
====Variable====
 
* Solution 1
* Solution 2
* Solution 3
 
====Incompatible====
 
* Solution 1
* Solution 2
* Solution 3
 
===Admixture===
 
====Compatible====
 
* Solution 1
* Solution 2
* Solution 3
 
====Not Tested====
 
* Solution 1
* Solution 2
* Solution 3
 
====Variable====
 
* Solution 1
* Solution 2
* Solution 3
 
====Incompatible====
 
* Solution 1
* Solution 2
* Solution 3
 
===Syringe===
 
====Compatible====
 
* Solution 1
* Solution 2
* Solution 3
 
====Not Tested====
 
* Solution 1
* Solution 2
* Solution 3
 
====Variable====
 
* Solution 1
* Solution 2
* Solution 3
 
====Incompatible====
 
* Solution 1
* Solution 2
* Solution 3
 
===TPN/TNA===
 
====Compatible====
 
* Solution 1
* Solution 2
* Solution 3
 
====Not Tested====
 
* Solution 1
* Solution 2
* Solution 3
 
====Variable====
 
* Solution 1
* Solution 2
* Solution 3
 
====Incompatible====
 
* Solution 1
* Solution 2
* Solution 3
|overdose====Acute Overdose===
 
====Signs and Symptoms====
 
(Description)
 
====Management====
 
(Description)
 
===Chronic Overdose===
 
====Signs and Symptoms====
 
(Description)
 
====Management====
 
(Description)
|drugBox={{Drugbox2
| verifiedrevid =
| IUPAC_name =
| image =
| drug_name =
 
<!--Clinical data-->
| tradename =
| MedlinePlus =
| licence_US =
| pregnancy_AU =
| pregnancy_US =
| legal_status =
| routes_of_administration =
 
<!--Pharmacokinetic data-->
| bioavailability =
| metabolism =
| elimination_half-life =
| excretion =
 
<!--Identifiers-->
| CAS_number_Ref =
| CAS_number =
| ATC_prefix =
| ATC_suffix =
| PubChem =
| IUPHAR_ligand =
| DrugBank_Ref =
| DrugBank =
| ChemSpiderID_Ref =
| ChemSpiderID =
| UNII_Ref =
| UNII =
| KEGG_Ref =
| KEGG =
| ChEBI_Ref =
| ChEBI =
| ChEMBL_Ref =
| ChEMBL =
 
<!--Chemical data-->
| C= | H= | N= | O=
| molecular_weight =
| smiles =
| InChI =
| InChIKey =
| StdInChI_Ref =
| StdInChI =
| StdInChIKey_Ref =
| StdInChIKey =
| melting_point =
}}
|mechAction=(Description)
|structure=(Description with picture)
|PD=(Description)
|PK=(Description)
|nonClinToxic=(Description)
|clinicalStudies======Condition 1=====
 
(Description)
 
=====Condition 2=====
 
(Description)
 
=====Condition 3=====
 
(Description)
|howSupplied=(Description)
|fdaPatientInfo=(Patient Counseling Information)
|nlmPatientInfo=(Link to patient information page)
|lookAlike=* (Paired Confused Name 1a) — (Paired Confused Name 1b)
* (Paired Confused Name 2a) — (Paired Confused Name 2b)
* (Paired Confused Name 3a) — (Paired Confused Name 3b)
|drugShortage=Drug Shortage
}}

Revision as of 18:47, 15 July 2014

Methyldopa
Black Box Warning
Adult Indications & Dosage
Pediatric Indications & Dosage
Contraindications
Warnings & Precautions
Adverse Reactions
Drug Interactions
Use in Specific Populations
Administration & Monitoring
Overdosage
Pharmacology
Clinical Studies
How Supplied
Images
Patient Counseling Information
Precautions with Alcohol
Brand Names
Look-Alike Names

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];

Disclaimer

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Black Box Warning

Warning Title
See full prescribing information for complete Boxed Warning.
Condition Name: (Content)

Overview

Methyldopa is a Adrenergic receptor agonist that is FDA approved for the {{{indicationType}}} of a list of indications, separated by commas.. There is a Black Box Warning for this drug as shown here. Common adverse reactions include a list of adverse reactions, separated by commas..

Adult Indications and Dosage

FDA-Labeled Indications and Dosage (Adult)

Condition 1
  • Dosing Information
  • (Dosage)
Condition 2
  • Dosing Information
  • (Dosage)

Off-Label Use and Dosage (Adult)

Guideline-Supported Use

Condition 1
  • Developed by: (Organisation)
  • Class of Recommendation: (Class) (Link)
  • Strength of Evidence: (Category A/B/C) (Link)
  • Dosing Information/Recommendation
  • (Dosage)
Condition 2
  • Developed by: (Organisation)
  • Class of Recommendation: (Class) (Link)
  • Strength of Evidence: (Category A/B/C) (Link)
  • Dosing Information/Recommendation
  • (Dosage)

Non–Guideline-Supported Use

Condition 1
  • Dosing Information
  • (Dosage)
Condition 2
  • Dosing Information
  • (Dosage)
Condition 3
  • Dosing Information
  • (Dosage)

Pediatric Indications and Dosage

FDA-Labeled Indications and Dosage (Pediatric)

Condition 1
  • Dosing Information
  • (Dosage)
Condition 2
  • Dosing Information
  • (Dosage)

Off-Label Use and Dosage (Pediatric)

Guideline-Supported Use

Condition 1
  • Developed by: (Organisation)
  • Class of Recommendation: (Class) (Link)
  • Strength of Evidence: (Category A/B/C) (Link)
  • Dosing Information/Recommendation
  • (Dosage)
Condition 2
  • Developed by: (Organisation)
  • Class of Recommendation: (Class) (Link)
  • Strength of Evidence: (Category A/B/C) (Link)
  • Dosing Information/Recommendation
  • (Dosage)

Non–Guideline-Supported Use

Condition 1
  • Dosing Information
  • (Dosage)
Condition 2
  • Dosing Information
  • (Dosage)
Condition 3
  • Dosing Information
  • (Dosage)

Contraindications

  • Condition 1
  • Condition 2
  • Condition 3
  • Condition 4
  • Condition 5

Warnings

Warning Title
See full prescribing information for complete Boxed Warning.
Condition Name: (Content)
Conidition 1

(Description)

Adverse Reactions

Clinical Trials Experience

Central Nervous System
(list/description of adverse reactions)
Cardiovascular
(list/description of adverse reactions)
Respiratory
(list/description of adverse reactions)
Gastrointestinal
(list/description of adverse reactions)
Hypersensitive Reactions
(list/description of adverse reactions)
Miscellaneous
(list/description of adverse reactions)
Condition 2
Central Nervous System
(list/description of adverse reactions)
Cardiovascular
(list/description of adverse reactions)
Respiratory
(list/description of adverse reactions)
Gastrointestinal
(list/description of adverse reactions)
Hypersensitive Reactions
(list/description of adverse reactions)
Miscellaneous
(list/description of adverse reactions)

Postmarketing Experience

(Description)

Drug Interactions

  • Drug 1
  • Drug 2
  • Drug 3
  • Drug 4
  • Drug 5
Drug 1

(Description)

Drug 2

(Description)

Drug 3

(Description)

Drug 4

(Description)

Drug 5

(Description)

Use in Specific Populations

Pregnancy

Pregnancy Category (FDA): (Description)
Pregnancy Category (AUS): (Description)

Labor and Delivery

(Description)

Nursing Mothers

(Description)

Pediatric Use

(Description)

Geriatic Use

(Description)

Gender

(Description)

Race

(Description)

Renal Impairment

(Description)

Hepatic Impairment

(Description)

Females of Reproductive Potential and Males

(Description)

Immunocompromised Patients

(Description)

Others

(Description)

Administration and Monitoring

Administration

(Oral/Intravenous/etc)

Monitoring

Condition 1

(Description regarding monitoring, from Warnings section)

Condition 2

(Description regarding monitoring, from Warnings section)

Condition 3

(Description regarding monitoring, from Warnings section)

IV Compatibility

Solution

Compatible

  • Solution 1
  • Solution 2
  • Solution 3

Not Tested

  • Solution 1
  • Solution 2
  • Solution 3

Variable

  • Solution 1
  • Solution 2
  • Solution 3

Incompatible

  • Solution 1
  • Solution 2
  • Solution 3

Y-Site

Compatible

  • Solution 1
  • Solution 2
  • Solution 3

Not Tested

  • Solution 1
  • Solution 2
  • Solution 3

Variable

  • Solution 1
  • Solution 2
  • Solution 3

Incompatible

  • Solution 1
  • Solution 2
  • Solution 3

Admixture

Compatible

  • Solution 1
  • Solution 2
  • Solution 3

Not Tested

  • Solution 1
  • Solution 2
  • Solution 3

Variable

  • Solution 1
  • Solution 2
  • Solution 3

Incompatible

  • Solution 1
  • Solution 2
  • Solution 3

Syringe

Compatible

  • Solution 1
  • Solution 2
  • Solution 3

Not Tested

  • Solution 1
  • Solution 2
  • Solution 3

Variable

  • Solution 1
  • Solution 2
  • Solution 3

Incompatible

  • Solution 1
  • Solution 2
  • Solution 3

TPN/TNA

Compatible

  • Solution 1
  • Solution 2
  • Solution 3

Not Tested

  • Solution 1
  • Solution 2
  • Solution 3

Variable

  • Solution 1
  • Solution 2
  • Solution 3

Incompatible

  • Solution 1
  • Solution 2
  • Solution 3

Overdosage

Acute Overdose

Signs and Symptoms

(Description)

Management

(Description)

Chronic Overdose

Signs and Symptoms

(Description)

Management

(Description)

Pharmacology

Chemical structure of Methyldopa
Methyldopa
Systematic (IUPAC) name
?
Identifiers
CAS number ?
ATC code ?
PubChem ?
Chemical data
Formula ?
Mol. mass ?
Pharmacokinetic data
Bioavailability ?
Metabolism ?
Half life ?
Excretion ?
Therapeutic considerations
Pregnancy cat.

?

Legal status
Routes ?

Mechanism of Action

(Description)

Structure

(Description with picture)

Pharmacodynamics

(Description)

Pharmacokinetics

(Description)

Nonclinical Toxicology

(Description)

Clinical Studies

Condition 1

(Description)

Condition 2

(Description)

Condition 3

(Description)

How Supplied

(Description)

Storage

There is limited information regarding Methyldopa Storage in the drug label.

Images

Drug Images

{{#ask: Page Name::Methyldopa |?Pill Name |?Drug Name |?Pill Ingred |?Pill Imprint |?Pill Dosage |?Pill Color |?Pill Shape |?Pill Size (mm) |?Pill Scoring |?NDC |?Drug Author |format=template |template=DrugPageImages |mainlabel=- |sort=Pill Name }}

Package and Label Display Panel

{{#ask: Label Page::Methyldopa |?Label Name |format=template |template=DrugLabelImages |mainlabel=- |sort=Label Page }}

Patient Counseling Information

(Patient Counseling Information)

Precautions with Alcohol

Alcohol-Methyldopa interaction has not been established. Talk to your doctor regarding the effects of taking alcohol with this medication.

Brand Names

There is limited information regarding Methyldopa Brand Names in the drug label.

Look-Alike Drug Names

  • (Paired Confused Name 1a) — (Paired Confused Name 1b)
  • (Paired Confused Name 2a) — (Paired Confused Name 2b)
  • (Paired Confused Name 3a) — (Paired Confused Name 3b)

Drug Shortage Status

Drug Shortage

Price

References

The contents of this FDA label are provided by the National Library of Medicine.

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