Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine Caps & Tabs and Methyldopate hydrochloride
Determining the interaction of Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine Caps & Tabs and Methyldopate hydrochloride and the possibility of their joint administration.
In the database of official manuals used in the service creation an interaction registered by statistical results of studies was found, which can either lead to negative consequences for the patient health or strengthen a mutual positive effect. A doctor should be consulted to address the issue of joint drug administration.
Consumer:Using phenylephrine together with methyldopa may cause an increase in blood pressure. Contact your doctor if your condition changes. If your doctor does prescribe these medications together, you may need a dose adjustment or need your blood pressure checked more often to safely use both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Professional:MONITOR: Limited data suggest that methyldopa and other sympatholytics may increase or prolong the pressor effect of sympathomimetics. Hypertension may result. Data exist for phenylpropanolamine and norepinephrine.
MANAGEMENT: If these drugs must be coadministered, blood pressure should be closely monitored. Discontinuation of the sympathomimetic may be necessary if hypertension develops.
- McLaren EH "Severe hypertension produced by interaction of phenylpropanolamine with methyldopa and oxprenolol." Br Med J 2 (1976): 283-4
- "Product Information. Allegra-D (fexofenadine-pseudoephedrine)." Chattem Consumer Products, Chattanooga, TN.
Generic Name: acetaminophen / dextromethorphan / guaifenesin / phenylephrine
Brand name: DayQuil Severe Cold & Flu, Delsym Cough Plus Cold Day Time, Mucinex Children's Cold, Cough & Sore Throat, Mucinex Fast-Max Severe Cold, Sudafed PE Cold & Cough, Tylenol Cold & Flu Severe, Tylenol Cold Multi-Symptom Severe, Mucinex Sinus-Max, Sudafed PE Cold/Cough, Tylenol Cold Head Congestion, Tylenol Cold Multi Symptom, Tylenol Cold/Flu Severe, Vicks DayQuil Severe Cold/Flu
Synonyms: Acetaminophen, dextromethorphan, guaifenesin, and phenylephrine
Generic Name: methyldopa
Brand name: Aldomet
Synonyms: Methyldopa
In the course of checking the drug compatibility and interactions, data from the following reference sources was used: Drugs.com, Rxlist.com, Webmd.com, Medscape.com.
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