{"id":633733,"date":"2025-10-02T10:50:26","date_gmt":"2025-10-02T14:50:26","guid":{"rendered":"https:\/\/www.singlecare.com\/blog\/?p=633733"},"modified":"2026-01-28T14:07:12","modified_gmt":"2026-01-28T19:07:12","slug":"mucinex-interactions","status":"publish","type":"post","link":"https:\/\/www.singlecare.com\/blog\/mucinex-interactions\/","title":{"rendered":"Mucinex (guaifenesin) interactions to avoid"},"content":{"rendered":"

Mucinex<\/span><\/a> is the brand name for <\/span>guaifenesin, which is a cough expectorant that works by loosening mucus in your chest so it can more easily be cleared or coughed out. Mucinex is also the brand name of a family of medications that treat cold symptoms, coughs, the flu, and allergy symptoms.<\/span><\/p>\n

In addition to Mucinex products containing only guaifenesin, some of the most commonly used Mucinex combination products include Mucinex D and Mucinex DM.<\/span> Mucinex D<\/span><\/a> is an expectorant and nasal decongestant that combines guaifenesin and pseudoephedrine.<\/span> Mucinex DM<\/span><\/a> combines guaifenesin with dextromethorphan, a cough suppressant.<\/span><\/p>\n

Mucinex products containing only <\/span>guaifenesin do not have any known drug or other interactions, but combination Mucinex products\u2014including Mucinex D and Mucinex DM\u2014may interact poorly with certain medications or substances. If you are taking any Mucinex product, you should read labels carefully so that you understand what the product contains and so that you can be aware of any potential interactions.<\/span><\/p>\n

Mucinex drug interactions<\/span><\/h2>\n

When taken as guaifenesin alone, Mucinex has a relatively low risk of any concerning interactions with other drugs, says<\/span> John Abroon, MD<\/span><\/a>, a board-certified internist and primary care physician in New York City. \u201cThe challenge comes from multi-symptom products where it\u2019s paired with dextromethorphan or pseudoephedrine,\u201d he says.<\/span>\u00a0<\/span><\/p>\n

Here\u2019s what to know about some of these combination Mucinex interactions.<\/span>\u00a0<\/span><\/p>\n\n\n\n\n\n\n\n
Mucinex type<\/b><\/td>\nDrug class or group name<\/b><\/td>\nExample drug names<\/b><\/td>\nInteractions\/side effects<\/b><\/td>\n<\/tr>\n
Mucinex D (<\/span>guaifenesin and pseudoephedrine)<\/span><\/td>\nMonoamine oxidase inhibitors (MAOI)<\/span><\/a><\/td>\nMarplan (Isocarboxazid)<\/span><\/p>\n

Emsam (Selegiline)<\/span><\/p>\n

Nardil (Phenelzine)<\/span><\/p>\n

Parnate (Tranylcypromine)<\/span><\/td>\n

Elevated heart rate and blood pressure<\/span><\/td>\n<\/tr>\n
Mucinex DM (<\/span>guaifenesin and <\/span>dextromethorphan<\/span>)<\/span><\/td>\nMonoamine oxidase inhibitors (MAOI)<\/span><\/td>\nMarplan (Isocarboxazid)<\/span><\/p>\n

Emsam (Selegiline)<\/span><\/p>\n

\u00a0Nardil (Phenelzine)<\/span><\/p>\n

Parnate (Tranylcypromine)<\/span><\/td>\n

Serotonin syndrome<\/span><\/td>\n<\/tr>\n
Mucinex DM (<\/span>guaifenesin and <\/span>dextromethorphan<\/span>)<\/span><\/td>\nSelective serotonin reuptake inhibitors (SSRIs)<\/span><\/a>,<\/span> serotonin-norepinephrine reuptake inhibitors (SNRIs)<\/span><\/a>,<\/span> tricyclic antidepressants (TCAs)<\/span><\/a><\/td>\nZoloft (sertraline)<\/span><\/a><\/p>\n

Prozac (fluoxetine)<\/span><\/a><\/p>\n

Cymbalta (duloxetine)<\/span><\/a><\/p>\n

Effexor (venlafaxine)<\/span><\/a><\/p>\n

Anafranil (clomipramine)<\/span><\/td>\n

Serotonin syndrome<\/span><\/td>\n<\/tr>\n
Mucinex DM (<\/span>guaifenesin and <\/span>dextromethorphan<\/span>)<\/span><\/td>\nRespiratory suppressants like<\/span> benzodiazepines<\/span><\/a> and<\/span> opioids<\/span><\/a><\/td>\nXanax (alprazolam)<\/span><\/a><\/p>\n

Klonopin (clonazepam)<\/span><\/a><\/p>\n

Vicodin (hydrocodone)<\/span><\/p>\n

OxyContin (oxycodone)<\/span><\/p>\n

Codeine<\/span><\/a><\/td>\n

Sedation, confusion, dizziness<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Other drug interactions:\u00a0<\/span><\/h4>\n