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Guaifed PD (guaifenesin / phenylephrine) Drug Interactions

A total of 337 drugs are known to interact with Guaifed PD (guaifenesin / phenylephrine).

  • 57 major drug interactions
  • 277 moderate drug interactions
  • 3 minor drug interactions

Show all medications in the database that may interact with Guaifed PD (guaifenesin / phenylephrine).

Check for interactions with Guaifed PD (guaifenesin / phenylephrine)

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Common medications checked in combination with Guaifed PD (guaifenesin / phenylephrine)

  • Adderall (amphetamine / dextroamphetamine)
  • Augmentin (amoxicillin / clavulanate)
  • Cymbalta (duloxetine)
  • diphenhydramine (Benadryl, Banophen, Benadryl Allergy, ZzzQuil, Unisom SleepGels, Dicopanol, Sleep, Diphenhist, Sominex, Diphen, Diphenadryl, Benadryl Children's Allergy, Allermax, Diphenydramine Quick Melt, Nytol, Diphedryl, Hydramine, Diphendryl, Pharbedryl, Buckley's Bedtime, Hyrexin, Hydramine Cough Syrup, Bydramine, Diphen Cough, DPH, Allergia-C, Q-Dryl, Sleep Tabs, Quenalin, Sleep-ettes D, Q-Dryl A/F, Dytan, Vanamine PD, Sleepwell 2-nite, Snooze Fast, Sominex Maximum Strength Caplet, Unisom SleepMinis, Unisom Liquid, Triaminic Thin Strips Allergy, ConRx Allergy, 40 Winks, Diphen AF, Aler-Dryl, Benahist-10, Benahist-50, Benoject-50, Calm-Aid, Genahist, Alka-Seltzer Plus Allergy, Aller-G-Time, Sleep Tab II, Sleep-Eze-3, Somnicaps, Nytol QuickCaps, Total Allergy, Trux-adryl, Valu-Dryl, Diphenyl, Altaryl, Triaminic Thin Strips Cough & Runny Nose, Beldin, Belix, Vicks QlearQuil Nighttime Allergy Relief, Siladryl, Siladryl DAS, Siladyl SA, Silphen Cough, Sleep-ettes, Tusstat, Diphenylin, Hydramine Compound, Pardryl, Nervine, Nu-Med, Nytol Caplet, Compoz Nighttime Sleep Aid, Sleepinal, Help I Can't Sleep, Twilite, Banaril, Aler-Tab, Siladryl Allergy, Theraflu Thin Strips Multi Symptom, Uni-Tann, Diphenmax, Nightime Sleepaid, Ben-Tann, Histaprin, Z-Sleep, Tranquil Nighttime Sleep Aid, Unisom SleepMelts, PediaCare Children's Allergy, Truxadryl, Simply Sleep, Complete Allergy Relief, Dytuss, Dormin, Miles Nervine, Scot-Tussin Allergy)
  • duloxetine (Cymbalta, Irenka)
  • Excedrin Migraine (acetaminophen / aspirin / caffeine)
  • levothyroxine (Synthroid, Levoxyl, Tirosint, Levothroid, Eltroxin, Unithroid, Levothyrox, Euthyrox, Levo-T, L Thyroxine Roche, Eutroxsig, Novothyrox, Oroxine, Tirosint-Sol, Levotabs, Levotec, Evotrox)
  • Lidoderm (lidocaine topical)
  • Lortab (acetaminophen / hydrocodone)
  • Lyrica (pregabalin)
  • Nicoderm CQ (nicotine)
  • nicotine (Nicoderm CQ, Nicorette, Nicotrol Inhaler, Habitrol, Commit, Leader Nicotine Polacrilex, Nicotrol NS, Nicorelief, ProStep, Nicorette DS, Nicotrol TD)
  • Norco (acetaminophen / hydrocodone)
  • Phenergan (promethazine)
  • promethazine (Phenergan, Promethegan, Phenadoz, Antinaus 50, Anergan 50, Adgan, Phenazine 50, Phenergan Fortis, V-Gan-50, V-Gan-25, Phenoject-50, Pro-Med)
  • scopolamine (Transderm-Scop, Scopace, Maldemar)
  • thyroid desiccated (Armour Thyroid, Nature-Throid, NP Thyroid, Westhroid, Thyroid Porcine, WP Thyroid, Bio-Throid)
  • trazodone (Desyrel, Oleptro, Desyrel Dividose)
  • Vitamin D3 (cholecalciferol)
  • Wellbutrin (bupropion)

Guaifed PD (guaifenesin / phenylephrine) disease interactions

There are 4 disease interactions with Guaifed PD (guaifenesin / phenylephrine) which include:

Drug Interaction Classification

The classifications below are a general guideline only. It is difficult to determine the relevance of a particular drug interaction to any individual given the large number of variables.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No information available.

Do not stop taking any medications without consulting your healthcare provider.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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