G-1 Interactions
Showing entire list of all interactions, including brand names and combination drugs.
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Medications known to interact with G-1
E
- E-Caff P-B (belladonna / caffeine / ergotamine / pentobarbital)
- Easprin (aspirin)
- echinacea
- Echotuss-HC (chlorpheniramine / hydrocodone / phenylephrine)
- EContra EZ (levonorgestrel)
- EContra One-Step (levonorgestrel)
- Ecotrin (aspirin)
- Ecotrin Adult Low Strength (aspirin)
- Ecotrin Maximum Strength (aspirin)
- Ecpirin (aspirin)
- Ed A-Hist (chlorpheniramine / phenylephrine)
- Ed A-Hist DM (chlorpheniramine / dextromethorphan / phenylephrine)
- Ed A-Hist LA (chlorpheniramine / phenylephrine)
- Ed A-Hist PSE (pseudoephedrine / triprolidine)
- ED Bron GP (guaifenesin / phenylephrine)
- Ed Chlor Ped Jr. (chlorpheniramine)
- Ed Chlor-Tan (chlorpheniramine)
- Ed ChlorPed (chlorpheniramine)
- Ed ChlorPed D (chlorpheniramine / phenylephrine)
- ED DM (chlorpheniramine / dextromethorphan / phenylephrine)
- Ed-Bron G (guaifenesin / theophylline)
- Ed-Chlortan (chlorpheniramine)
- Ed-Flex (acetaminophen / phenyltoloxamine / salicylamide)
- Ed-Spaz (hyoscyamine)
- Ed-TLC (chlorpheniramine / hydrocodone / phenylephrine)
- Ed-Tuss HC (chlorpheniramine / hydrocodone / phenylephrine)
- Edarbi (azilsartan medoxomil)
- Edarbyclor (azilsartan medoxomil / chlorthalidone)
- Edluar (zolpidem)
- Edurant (rilpivirine)
- Edurant Ped (rilpivirine)
- EEMT (esterified estrogens / methyltestosterone)
- EEMT DS (esterified estrogens / methyltestosterone)
- EEMT HS (esterified estrogens / methyltestosterone)
- Efasin (guaifenesin / phenylephrine)
- Efasin Expectorant SF (codeine / guaifenesin / phenylpropanolamine)
- Efasin-HD (chlorpheniramine / hydrocodone / phenylephrine)
- Efasin-HD Plus (chlorpheniramine / hydrocodone / phenylephrine)
- efavirenz
- efavirenz / emtricitabine / tenofovir
- efavirenz / lamivudine / tenofovir
- Effective Strength Cough Syrup (chlorpheniramine / dextromethorphan)
- Effervescent Cold Relief (aspirin / chlorpheniramine / phenylephrine)
- Effervescent Pain Relief (aspirin/citric acid/sodium bicarbonate)
- Effexor (venlafaxine)
- Effexor XR (venlafaxine)
- Efidac (pseudoephedrine)
- elacestrant
- elagolix
- elagolix / estradiol / norethindrone
- Elavil (amitriptyline)
- elbasvir / grazoprevir
- Eldepryl (selegiline)
- Elepsia XR (levetiracetam)
- Elestrin (estradiol)
- elexacaftor / ivacaftor / tezacaftor
- Elifemme (ethinyl estradiol / levonorgestrel)
- eliglustat
- Elinest (ethinyl estradiol / norgestrel)
- Eliquis (apixaban)
- Elixiral (atropine / hyoscyamine / phenobarbital / scopolamine)
- Elixophyllin (theophylline)
- Elixophyllin GG (guaifenesin / theophylline)
- Elixophyllin KI (potassium iodide / theophylline)
- ElixSure Congestion (pseudoephedrine)
- ElixSure Cough (dextromethorphan)
- Elixsure Decongestant (pseudoephedrine)
- ella (ulipristal)
- Ellence (epirubicin)
- Elleste Solo (estradiol)
- Elspar (asparaginase escherichia coli)
- Eltroxin (levothyroxine)
- EluRyng (ethinyl estradiol / etonogestrel)
- Emagrin (aspirin / caffeine / salicylamide)
- Emagrin Forte (acetaminophen / guaifenesin / phenylephrine)
- Emagrin Forte (old formulation) (acetaminophen / caffeine / guaifenesin / phenylephrine)
- Embeda (morphine / naltrexone)
- Emblon (tamoxifen)
- Emend (aprepitant)
- Emend for Injection (fosaprepitant)
- Emerphed (ephedrine)
- Emoquette (desogestrel / ethinyl estradiol)
- empagliflozin / linagliptin
- empagliflozin / linagliptin / metformin
- Empirin (aspirin)
- Empirin with Codeine (aspirin / codeine)
- Empro (phenylpropanolamine)
- Emsam (selegiline)
- emtricitabine / lopinavir / ritonavir / tenofovir
- emtricitabine / nelfinavir / tenofovir
- emtricitabine / rilpivirine / tenofovir
- emtricitabine / rilpivirine / tenofovir alafenamide
- Emzahh (norethindrone)
- Ena (estradiol / norethindrone)
- Enablex (darifenacin)
- encorafenib
- EndaCof Drops (chlorpheniramine / dextromethorphan / phenylephrine)
- Endacof HC (brompheniramine / hydrocodone / pseudoephedrine)
- EndaCof PD Drops (brompheniramine / dextromethorphan / pseudoephedrine)
- Endacof XP (guaifenesin / hydrocodone)
- EndaCof-AC (brompheniramine / codeine)
- Endacof-C (chlorpheniramine / codeine)
- EndaCof-DC (codeine / pseudoephedrine)
- EndaCof-DH (brompheniramine / dihydrocodeine / phenylephrine)
- EndaCof-DM (brompheniramine / dextromethorphan / phenylephrine)
- EndaCof-PD (brompheniramine / dextromethorphan / guaifenesin / phenylephrine)
- EndaCof-Plus (dexchlorpheniramine / hydrocodone / phenylephrine)
- EndaCof-Tab (guaifenesin / hydrocodone)
- Endacon (dextromethorphan / guaifenesin / phenylephrine)
- Endacon DM (dextromethorphan / guaifenesin / phenylephrine)
- Endafed (brompheniramine / pseudoephedrine)
- Endagen-HD (chlorpheniramine / hydrocodone / phenylephrine)
- Endal (guaifenesin / phenylephrine)
- Endal CD (chlorpheniramine / codeine / phenylephrine)
- Endal CD (old formulation) (codeine / diphenhydramine / phenylephrine)
- Endal Expectorant (codeine / guaifenesin / phenylpropanolamine)
- Endal HD (diphenhydramine / hydrocodone / phenylephrine)
- Endal Liquid (dextromethorphan / triprolidine)
- Endal-HD Plus (chlorpheniramine / hydrocodone / phenylephrine)
- Endep (amitriptyline)
- Enditussin Expectorant (codeine / guaifenesin / phenylpropanolamine)
- Endocet (acetaminophen / oxycodone)
- Endocodone (oxycodone)
- Endodan (aspirin / oxycodone)
- Endometrin (progesterone)
- Endotuss Expectorant (codeine / guaifenesin / phenylpropanolamine)
- Endotuss-HD (chlorpheniramine / hydrocodone / phenylephrine)
- Enfamil D-Vi-Sol (cholecalciferol)
- enfortumab vedotin
- EnilloRing (ethinyl estradiol / etonogestrel)
- Enjuvia (conjugated estrogens)
- Enlon-Plus (atropine / edrophonium)
- Enomine (guaifenesin / phenylephrine / phenylpropanolamine)
- Enomine LA (guaifenesin / phenylpropanolamine)
- enoxacin
- Enplus-HD (chlorpheniramine / hydrocodone / phenylephrine)
- Enpresse (ethinyl estradiol / levonorgestrel)
- Enskyce (desogestrel / ethinyl estradiol)
- ENT (brompheniramine / phenylpropanolamine)
- Entac (guaifenesin / phenylephrine / phenylpropanolamine)
- entacapone
- Entadfi (finasteride / tadalafil)
- Entaprin (aspirin)
- Entercote (aspirin)
- Entex (pseudoephedrine)
- Entex ER (guaifenesin / phenylephrine)
- Entex HC (guaifenesin / hydrocodone / pseudoephedrine)
- Entex LA (guaifenesin / phenylephrine)
- Entex LQ (guaifenesin / phenylephrine)
- Entex Pac (dextromethorphan / guaifenesin / pseudoephedrine)
- Entex PSE (guaifenesin / pseudoephedrine)
- Entex T (guaifenesin / pseudoephedrine)
- Entocort EC (budesonide)
- Entre-B (brompheniramine / phenylephrine)
- Entre-Cough (dextromethorphan / guaifenesin / pseudoephedrine)
- Entre-S (chlorpheniramine / dextromethorphan / pseudoephedrine)
- entrectinib
- Entresto (sacubitril / valsartan)
- Entresto Sprinkle (sacubitril / valsartan)
- Entuss (guaifenesin / hydrocodone)
- Entuss Expectorant (hydrocodone / potassium guaiacolsulfonate)
- Entuss-D (guaifenesin / hydrocodone / pseudoephedrine)
- Entuss-D JR (guaifenesin / hydrocodone / pseudoephedrine)
- Entuss-D Liquid (hydrocodone / pseudoephedrine)
- Envarsus XR (tacrolimus)
- enzalutamide
- Eo 3 Eye Omega Advantage (cholecalciferol / lutein / omega-3 polyunsaturated fatty acids / zeaxanthin)
- Eohilia (budesonide)
- Eperbel-S (belladonna / ergotamine / phenobarbital)
- Ephed Plus (acetaminophen / pseudoephedrine)
- ephedrine
- ephedrine / guaifenesin
- ephedrine / guaifenesin / theophylline
- ephedrine / hydroxyzine / theophylline
- ephedrine / phenobarbital / potassium iodide / theophylline
- ephedrine / phenobarbital / theophylline
- ephedrine / potassium iodide
- Ephensin-LA (guaifenesin / phenylpropanolamine)
- Epi EZ Pen (epinephrine)
- Epidiolex (cannabidiol)
- Epidrin (acetaminophen / dichloralphenazone / isometheptene mucate)
- epinephrine
- epinephrine / etidocaine
- epinephrine / lidocaine
- epinephrine / prilocaine
- EpiPen (epinephrine)
- EpiPen 2-Pak (epinephrine)
- EpiPen Auto-Injector (epinephrine)
- EpiPen Jr (epinephrine)
- EpiPen JR 2-Pak (epinephrine)
- EpiPen JR Auto-Injector (epinephrine)
- epirubicin
- EPIsnap (epinephrine)
- Epitol (carbamazepine)
- Eprontia (topiramate)
- Equagesic (aspirin / meprobamate)
- Equaline Acid Reducer (cimetidine)
- Equaline Heartburn Relief (ranitidine)
- Equaline Sleep Aid (doxylamine)
- Equate Allergy & Sinus Headache (acetaminophen / diphenhydramine / phenylephrine)
- Equate Allergy Relief (cetirizine)
- Equate Sleep Aid (doxylamine)
- Equetro (carbamazepine)
- Equi-Nade (chlorpheniramine / phenylpropanolamine)
- Equi-Tex (guaifenesin / phenylephrine / phenylpropanolamine)
- Equibron G (guaifenesin / theophylline)
- Equitan Pediatric (chlorpheniramine / phenylephrine / pyrilamine)
- Ercaf (caffeine / ergotamine)
- Ergocaf-PB (belladonna / caffeine / ergotamine / pentobarbital)
- ErgocaffPB (belladonna / caffeine / ergotamine / pentobarbital)
- ergocalciferol
- Ergocomp-PB (belladonna / caffeine / ergotamine / pentobarbital)
- Ergomar (ergotamine)
- ergonovine
- ergotamine
- Ergotrate (ergonovine)
- Ergotrate Maleate (ergonovine)
- Erleada (apalutamide)
- erlotinib
- Ermeza (levothyroxine)
- Errin (norethindrone)
- Erwinaze (asparaginase erwinia chrysanthemi)
- escitalopram
- Esclim (estradiol)
- Eskalith (lithium)
- Eskalith-CR (lithium)
- esketamine
- eslicarbazepine
- Esocor P (chlorpheniramine / dextromethorphan / pseudoephedrine)
- Essian (esterified estrogens / methyltestosterone)
- Essian H.S. (esterified estrogens / methyltestosterone)
- Estarylla (ethinyl estradiol / norgestimate)
- estazolam
- esterified estrogens
- esterified estrogens / methyltestosterone
- Estinyl (ethinyl estradiol)
- Estra Pellets (estradiol)
- Estra-C (estradiol)
- Estra-Testrin (estradiol / testosterone)
- Estra-V 40 (estradiol)
- Estrace (estradiol)
- Estrace Vaginal Cream (estradiol topical)
- Estraderm (estradiol)
- estradiol
- Estradiol G GAM (estradiol)
- Estradiol Patch (estradiol)
- estradiol topical
- estradiol / levonorgestrel
- estradiol / medroxyprogesterone
- estradiol / norethindrone
- estradiol / norethindrone topical
- estradiol / norethindrone / relugolix
- estradiol / norgestimate
- estradiol / progesterone
- estradiol / testosterone
- Estradot (estradiol)
- Estradot 100 (estradiol)
- Estradot 37.5 (estradiol)
- Estradot 50 (estradiol)
- Estradot 75 (estradiol)
- Estragyn 5 (estrone)
- Estragyn LA 5 (estradiol)
- Estrapatch (estradiol)
- Estrasorb (estradiol)
- Estratab (esterified estrogens)
- Estratest (esterified estrogens / methyltestosterone)
- Estratest H.S. (esterified estrogens / methyltestosterone)
- Estreva (estradiol)
- Estring (estradiol topical)
- Estro-A (estrone)
- Estro-Cyp (estradiol)
- Estro-LA (estradiol)
- Estro-Span 40 (estradiol)
- Estrofem (estradiol)
- Estrogel (estradiol)
- estrone
- Estrone AQ (estrone)
- estropipate
- Estrostep Fe (ethinyl estradiol / norethindrone)
- eszopiclone
- ETH-Oxydose (oxycodone)
- ethanol
- ethinyl estradiol
- ethinyl estradiol / ethynodiol
- ethinyl estradiol / etonogestrel
- ethinyl estradiol / folic acid / levonorgestrel
- ethinyl estradiol / levonorgestrel
- ethinyl estradiol / norelgestromin
- ethinyl estradiol / norethindrone
- ethinyl estradiol / norgestimate
- ethinyl estradiol / norgestrel
- ethinyl estradiol / segesterone
- ethosuximide
- ethotoin
- Ethyl Alcohol (ethanol)
- etidocaine
- etonogestrel
- Etrafon (amitriptyline / perphenazine)
- Etrafon Forte (amitriptyline / perphenazine)
- etravirine
- Etyqa (estradiol / norethindrone)
- Eucarbon (charcoal)
- Eudal SR (guaifenesin / pseudoephedrine)
- Euthyrox (levothyroxine)
- Eutroxsig (levothyroxine)
- Evamist (estradiol)
- Evekeo (amphetamine)
- Evekeo ODT (amphetamine)
- everolimus
- Evorel (estradiol)
- Evotaz (atazanavir / cobicistat)
- Evotrox (levothyroxine)
- Evoxac (cevimeline)
- Ex-Dec-TR (carbinoxamine / pseudoephedrine)
- Ex-Histine (chlorpheniramine / methscopolamine / phenylephrine)
- Ex-Tuss (atropine / chlorpheniramine / hyoscyamine / phenylephrine / phenylpropanolamine / scopolamine)
- Exalgo (hydromorphone)
- Exall (carbetapentane / guaifenesin)
- Exall-D (carbetapentane / guaifenesin / pseudoephedrine)
- Exaprin (acetaminophen / aspirin / caffeine / salicylamide)
- Excedrin (acetaminophen / aspirin / caffeine)
- Excedrin Back & Body (acetaminophen / aspirin)
- Excedrin Extra Strength (acetaminophen / aspirin / caffeine)
- Excedrin Menstrual Complete (acetaminophen / aspirin / caffeine)
- Excedrin Migraine (acetaminophen / aspirin / caffeine)
- Excedrin PM (acetaminophen / diphenhydramine)
- Excedrin PM Headache (acetaminophen / aspirin / diphenhydramine)
- Excedrin Sinus Headache (acetaminophen / phenylephrine)
- Excof (carbinoxamine / hydrocodone / phenylephrine)
- Excof-SF (carbinoxamine / hydrocodone / phenylephrine)
- Execlear (guaifenesin / hydrocodone)
- ExeClear-C (codeine / guaifenesin)
- ExeClear-DM (dextromethorphan / guaifenesin / pseudoephedrine)
- Execof (guaifenesin / hydrocodone)
- Execof ER (dextromethorphan / guaifenesin / phenylephrine)
- ExeFen (guaifenesin / pseudoephedrine)
- ExeFen-DM (dextromethorphan / guaifenesin)
- ExeFen-DMX (dextromethorphan / guaifenesin / pseudoephedrine)
- ExeFen-IR (guaifenesin / pseudoephedrine)
- exemestane
- ExeTuss (guaifenesin / phenylephrine)
- ExeTuss-DM (dextromethorphan / guaifenesin / phenylephrine)
- ExeTuss-GP (guaifenesin / phenylephrine)
- Exetuss-HC (guaifenesin / hydrocodone / phenylephrine)
- Exforge (amlodipine / valsartan)
- Exforge HCT (amlodipine / hydrochlorothiazide / valsartan)
- Exgest LA (guaifenesin / phenylpropanolamine)
- Exjade (deferasirox)
- Exkivity (mobocertinib)
- Exo-Tuss (chlorpheniramine / hydrocodone / phenylephrine)
- Exparel (bupivacaine liposome)
- Expectuss (carbetapentane / guaifenesin)
- Exratuss (carbetapentane / chlorpheniramine / phenylephrine)
- Exservan (riluzole)
- Extavia (interferon beta-1b)
- Extendryl (dexchlorpheniramine / methscopolamine / phenylephrine)
- Extendryl Chews (chlorpheniramine / methscopolamine / phenylephrine)
- Extendryl DM (chlorpheniramine / dextromethorphan / methscopolamine)
- Extendryl G (guaifenesin / phenylephrine)
- Extendryl GCP (carbetapentane / guaifenesin / phenylephrine)
- Extendryl HC (guaifenesin / hydrocodone)
- Extendryl JR (chlorpheniramine / methscopolamine / phenylephrine)
- Extendryl PEM (methscopolamine / phenylephrine)
- Extendryl PSE (methscopolamine / pseudoephedrine)
- Extendryl Seniors (chlorpheniramine / methscopolamine / phenylephrine)
- Extendryl SR (chlorpheniramine / methscopolamine / phenylephrine)
- Extra Pain Relief (acetaminophen / aspirin / caffeine)
- Extra Strength Bayer (aspirin)
- Extuss LA (dextromethorphan / guaifenesin)
- Exxua (gepirone)
- EZ III (acetaminophen / codeine)
- EZChar (charcoal)
- Eze DS (chlorzoxazone)
- ezogabine
More about G-1 (acetaminophen / butalbital / caffeine)
- Check interactions
- Compare alternatives
- Side effects
- Dosage information
- During pregnancy
- Drug class: analgesic combinations
Related treatment guides
Drug Interaction Classification
| Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
| Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
| 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. | |
| No interaction information available. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.