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Dextromethorphan / guaifenesin and Anxiety: What Users Say

Brand names: Mucinex DM, Mucinex DM Maximum Strength, Tussin DM, Guaifenesin DM, Chest Congestion Relief DM, Mucus Relief DM, Creo-Terpin, Mucinex Children's Cough, Safetussin DM, Robafen DM, Zyncof, Humibid CS, Benylin Expectorant, Cough Formula-DM, Guaiasorb Cough Medicine, Diabetic Tuss DM, Mucinex Fast-Max DM Max, Siltussin DM, Mucosa DM, Tusnel Diabetic, Double-Tussin DM, Amibid DM, G-Zyncof, Guaifenex DM, Fenex-DM, Mucinex Cough & Chest Congestion, Bidex-DMI, Vicks DayQuil Mucus Control DM, GG-DM SR, Humigen DM, Altarussin DM, Guiat Clear DM, Bidex-DM, Vicks Formula 44 Custom Care Chesty Cough, Scot-Tussin Senior, Pecgen DMX, Duratuss DM, Guiatuss Clear, Allfen DM, PediaCare Cough & Congestion, Mucinex Children's FreeFrom Cough & Mucus, HT Tuss DM, Hydro-Tuss DM, Alka-Seltzer Plus Maximum Strength Cough & Chest Congestion PowerFast Fizz, Drituss DM, Guaifen DM, Broncotron, Rompe Pecho DM, Biospec DMX, Delsym Cough+ Chest Congestion DM, Delsym Children’s Cough+ Chest Congestion DM, Guai-Dex, Guaifenesin DM SR, Bidex-A, Robitussin Children' s Cough & Chest Congestion DM, Extuss LA, ExeFen-DM, Coricidin HBP Chest Congestion & Cough, Siltussin DM DAS Cough Formula, Phlemex, DuraDEX, Aquatab DM, DuraDEX Forte, Robitussin Cough + Chest Congestion DM, Robitussin Cough + Chest Congestion Sugar-Free DM, Guaifen DM NR, Guiadrine DX, Balminil DM + Expectorant Sugar Free, Biocotron, Vicks Nature Fusion Cough & Chest Congestion, G Bid DM, Atuss-12 DX, G-Tron, Guaibid DM, Robitussin Cough + Chest Congestion DM Maximum Strength Cofex-DM Congesta DM Alka-Seltzer Plus Maximum Strength Cough & Mucus DM Siltussin-DM DAS-NA Siltussin-DM DAS-NA Maximum Strength Duratuss DM 12 Refenesen Chest Congestion Relief DM Brontuss Tussi-Organidin-DM Coricidin HBP Multi-Symptom Cold (Day) Triaminic Cough & Congestion Dex-Tuss DM Fenesin DM IR Tussin DM Max Vicks DayQuil Cough & Congestion Mucus Relief Cough Gani-Tuss-DM NR Guiadrine DM Diabetic Tussin Cough and Chest Congestion DM Fenesin DM Humibid DM Pediatric Ambi 1000/55 Giltuss Honey Cough & Chest Congestion Giltuss HBP Cough & Chest Congestion Guiatussin-DM Giltuss Diabetic Cough & Cold Giltuss Children's Honey Cough & Chest Congestion Guiatuss DM Giltuss Children's Cough & Chest Congestion Duraganidin Genatuss DM Glycotuss-DM Vicks Pediatric Formula 44e Cough & Chest Congestion Relief Guiacough DM Anti-Tuss DM Aquabid DM GG/DM …show all brand names

Anxiety: mentioned by 4 users (9.5%)

Based on user experiences from 42 Dextromethorphan / guaifenesin reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

increased heart rate 14.3%
anxiety 9.5%
nausea 9.5%

Reviews for Dextromethorphan / guaifenesin

Showing 4 reviews tagged with "anxiety". Clear filters to view all 42 reviews.
Commonly mentioned side effects
  • Jon...
  • Taken for less than 1 month
  • February 21, 2022

Dextromethorphan / guaifenesin "A guy on here said it made his heart race, which made him use his inhaler? Asthma inhalers can make you jittery, so you literally did the opposite of what you should have done. Another person said something about a flu shot and them telling him the flu symptoms were not related? Come on, the vaccine is a weakened version of the flu, so of course it causes flu symptoms. I wouldn't expect it to do much in that situation, but usually, when experiencing coughing at night, the suppressant is good, and with congested sinuses during the day, the expectorant is good. Check for possible interactions with other meds, hydrate PLENTY, don't just start by taking the highest recommended dosage. This is not a cure for COVID or other viruses, but it can help clear out phlegm. Definitely not for everyone but works for most."

7 / 10
Was this helpful?YesNo
21 Report
  • Anx...
  • Taken for less than 1 month
  • December 12, 2019

For Expectoration "Took an off-brand Mucinex around 10:00 pm, (same ingredients). I fell asleep and woke up at 2:00 am with extreme anxiety, dizziness, rapid heart rate, diarrhea, nausea, dry mouth, and shakiness. Will never take this medication or anything like it again. I'm glad I only took one tablet."

2 / 10
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4 Report
  • Lar...
  • Taken for less than 1 month
  • April 19, 2021

Dextromethorphan / guaifenesin for Expectoration "Had very bad anxiety during the whole night. Was confused. Heart rate was very high. Palpitation was abnormal. Chest tightness. Cannot sleep. Stomach upset."

1 / 10
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13 Report
  • kac...
  • January 9, 2016

Dextromethorphan / guaifenesin for Expectoration "Horrible side effects. Felt like I was having an anxiety attack."

1 / 10
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28 Report

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