Levothyroxine Interactions
Showing entire list of all interactions, including brand names and combination drugs.
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Medications known to interact with levothyroxine
H
- H 9600 SR (guaifenesin / pseudoephedrine)
- H-C Tussive (chlorpheniramine / hydrocodone / phenylephrine)
- H-C Tussive D (hydrocodone / pseudoephedrine)
- H-C Tussive-NR (dexbrompheniramine / hydrocodone / phenylephrine)
- Hailey 1.5 / 30 (ethinyl estradiol / norethindrone)
- Hailey 24 Fe (ethinyl estradiol / norethindrone)
- Hailey Fe 1.5 / 30 (ethinyl estradiol / norethindrone)
- Hailey Fe 1 / 20 (ethinyl estradiol / norethindrone)
- Hair Booster (multivitamin with minerals)
- Haley's M-O (magnesium hydroxide / mineral oil)
- Haloette (ethinyl estradiol / etonogestrel)
- Halotestin (fluoxymesterone)
- Halotussin DAC (codeine / guaifenesin / pseudoephedrine)
- Haponal (atropine / hyoscyamine / phenobarbital / scopolamine)
- Hayfebrol Liquid (chlorpheniramine / pseudoephedrine)
- Healthy Eyes (multivitamin with minerals)
- Healthy Eyes with Lutein (multivitamin with minerals)
- Heartburn Antacid Extra Strength (alginic acid / aluminum hydroxide / magnesium carbonate)
- HEB Allergy (acetaminophen / chlorpheniramine / phenylephrine)
- Help I Have A Stuffy Nose (phenylephrine)
- Hemady (dexamethasone)
- Hemangeol (propranolol)
- Hemaspan (ascorbic acid/ferrous fumarate)
- Hematex (iron polysaccharide)
- Hematinic Plus (multivitamin with minerals)
- Hematinic with Folic Acid (ferrous fumarate/folic acid)
- Hematogen (multivitamin with iron)
- Hematogen FA (multivitamin with iron)
- Hematogen Forte (multivitamin with iron)
- Hemax (multivitamin with minerals)
- heme iron polypeptide
- heme iron polypeptide / iron polysaccharide
- HemeNatal OB (multivitamin, prenatal)
- HemeNatal OB + DHA (multivitamin, prenatal)
- Hemetab (multivitamin with iron)
- Hemocyte (ferrous fumarate)
- Hemocyte Plus (multivitamin with minerals)
- Hemocyte-C (ascorbic acid/ferrous fumarate)
- Hemocyte-F (ferrous fumarate/folic acid)
- Hemocyte-F Elixir (multivitamin with iron)
- Henatal (multivitamin with minerals)
- Hexadrol (dexamethasone)
- Hexafed (dexchlorpheniramine / pseudoephedrine)
- Hexatussin (chlorpheniramine / hydrocodone / pseudoephedrine)
- Hi Tex PSE (guaifenesin / pseudoephedrine)
- Hi-Nate 90 (multivitamin, prenatal)
- Hi-Tuss HC (chlorpheniramine / hydrocodone / phenylephrine)
- Hicon (sodium iodide-i-131)
- HiDex (dexamethasone)
- High Potency (multivitamin with minerals)
- High Potency Multivitamin (multivitamin with minerals)
- Highland DM (brompheniramine / dextromethorphan / phenylpropanolamine)
- Highland HC (chlorpheniramine / hydrocodone / phenylephrine)
- Hist-PSE (pseudoephedrine / triprolidine)
- Hista-Tabs (pseudoephedrine / triprolidine)
- Hista-Vadrin (chlorpheniramine / phenylephrine / phenylpropanolamine)
- Hista-Vent DA (chlorpheniramine / methscopolamine / phenylephrine)
- Hista-Vent PSE (chlorpheniramine / methscopolamine / pseudoephedrine)
- Histacol BD Drops (brompheniramine / dextromethorphan / pseudoephedrine)
- Histacol DM Pediatric Syrup (brompheniramine / dextromethorphan / guaifenesin / pseudoephedrine)
- Histacol LA (atropine / chlorpheniramine / hyoscyamine / phenylephrine / scopolamine)
- Histade (chlorpheniramine / pseudoephedrine)
- Histade CR (chlorpheniramine / pseudoephedrine)
- Histadec (chlorpheniramine / phenylephrine)
- HistadecDM (chlorpheniramine / dextromethorphan / phenylephrine)
- Histafed (pseudoephedrine / triprolidine)
- Histafed LA (chlorpheniramine / pseudoephedrine)
- Histalet (chlorpheniramine / pseudoephedrine)
- Histalet Forte (chlorpheniramine / phenylephrine / phenylpropanolamine / pyrilamine)
- HistamaxD (carbinoxamine / phenylephrine)
- Histatab (chlorpheniramine / methscopolamine / pseudoephedrine)
- Histatab D (dexchlorpheniramine / methscopolamine / pseudoephedrine)
- Histatab PH (chlorpheniramine / methscopolamine / phenylephrine)
- Histatab Plus (chlorpheniramine / phenylephrine)
- Histatan (chlorpheniramine / phenylephrine / pyrilamine)
- Histenol-Forte II (acetaminophen / guaifenesin / phenylephrine)
- Histerone (testosterone)
- Histex HC (carbinoxamine / hydrocodone / pseudoephedrine)
- Histex SR (brompheniramine / pseudoephedrine)
- Histex-AC (codeine / phenylephrine / triprolidine)
- Histex-DM (dextromethorphan / phenylephrine / triprolidine)
- Histex-PE (phenylephrine / triprolidine)
- Histine-D (pheniramine / phenylpropanolamine / phenyltoloxamine / pyrilamine)
- Histinex D (hydrocodone / pseudoephedrine)
- Histinex DM (brompheniramine / dextromethorphan / phenylpropanolamine)
- Histinex HC (chlorpheniramine / hydrocodone / phenylephrine)
- Histinex PV (chlorpheniramine / hydrocodone / pseudoephedrine)
- Histussin D (hydrocodone / pseudoephedrine)
- Histussin HC Liquid (chlorpheniramine / hydrocodone / phenylephrine)
- Histussin HC Syrup (dexbrompheniramine / hydrocodone / phenylephrine)
- Hot Lemon Cough and Colds Relief DM (dextromethorphan / pheniramine / phenylephrine)
- house dust mite allergen extract
- Humalog (insulin lispro)
- Humalog Junior KwikPen (insulin lispro)
- Humalog KwikPen (insulin lispro)
- Humalog Mix 50/50 (insulin lispro/insulin lispro protamine)
- Humalog Mix 50/50 KwikPen (insulin lispro/insulin lispro protamine)
- Humalog Mix 75/25 (insulin lispro/insulin lispro protamine)
- Humalog Mix 75/25 KwikPen (insulin lispro/insulin lispro protamine)
- Humibid GC (guaifenesin / pseudoephedrine)
- Humulin 50 / 50 (insulin isophane / insulin regular)
- Humulin 70 / 30 (insulin isophane / insulin regular)
- Humulin 70 / 30 Pen (insulin isophane / insulin regular)
- Humulin L (insulin zinc)
- Humulin N (insulin isophane)
- Humulin N Pen (insulin isophane)
- Humulin R (insulin regular)
- Humulin R U-500 (Concentrated) (insulin regular)
- Humulin R U-500 KwikPen (insulin regular)
- Humulin U (insulin zinc extended)
- Hybolin Decanoate (nandrolone)
- Hybolin-Improved (nandrolone)
- Hybrid CF (acetaminophen / chlorpheniramine / phenylephrine)
- Hyco-DH (hydrocodone / phenylephrine / pyrilamine)
- Hycofenix (guaifenesin / hydrocodone / pseudoephedrine)
- Hycomal DH (hydrocodone / phenylephrine / pyrilamine)
- Hycomine (hydrocodone / phenylpropanolamine)
- Hycomine Compound (acetaminophen / caffeine / chlorpheniramine / hydrocodone / phenylephrine)
- Hycomine Pediatric (hydrocodone / phenylpropanolamine)
- Hycophen (hydrocodone / phenylpropanolamine)
- Hycophen Pediatric (hydrocodone / phenylpropanolamine)
- Hydeltra-TBA (prednisolone)
- Hydeltrasol (prednisolone)
- Hydex PD (dexchlorpheniramine / hydrocodone / phenylephrine)
- Hydro GP (guaifenesin / hydrocodone / phenylephrine)
- Hydro-DP (diphenhydramine / hydrocodone / phenylephrine)
- Hydro-PC II (chlorpheniramine / hydrocodone / phenylephrine)
- Hydro-PC II Plus (chlorpheniramine / hydrocodone / phenylephrine)
- Hydro-Tuss XP (guaifenesin / hydrocodone / pseudoephedrine)
- Hydro-Tussin CBX (carbinoxamine / pseudoephedrine)
- Hydro-Tussin DHC (chlorpheniramine / dihydrocodeine / pseudoephedrine)
- Hydro-Tussin EXP (dihydrocodeine / guaifenesin / pseudoephedrine)
- hydrochlorothiazide / metoprolol
- hydrochlorothiazide / propranolol
- hydrochlorothiazide / quinapril
- hydrochlorothiazide / timolol
- Hydrocodone CP (chlorpheniramine / hydrocodone / phenylephrine)
- Hydrocodone HD (chlorpheniramine / hydrocodone / phenylephrine)
- Hydrocodone PA Pediatric (hydrocodone / phenylpropanolamine)
- hydrocodone / pheniramine / phenylephrine / phenylpropanolamine / pyrilamine
- hydrocodone / phenylephrine
- hydrocodone / phenylephrine / pyrilamine
- hydrocodone / phenylpropanolamine
- hydrocodone / potassium guaiacolsulfonate / pseudoephedrine
- hydrocodone / pseudoephedrine
- hydrocodone / pseudoephedrine / triprolidine
- Hydrocof-HC (chlorpheniramine / hydrocodone / pseudoephedrine)
- hydrocortisone
- Hydrocortone (hydrocortisone)
- Hydrocortone Phosphate (hydrocortisone)
- HydroFed (guaifenesin / hydrocodone / phenylephrine)
- Hydron CP (chlorpheniramine / hydrocodone / phenylephrine)
- Hydron PCS (chlorpheniramine / hydrocodone / pseudoephedrine)
- Hydrophed (ephedrine / hydroxyzine / theophylline)
- Hydrophene DH (hydrocodone / phenylephrine / pyrilamine)
- Hydrotuss HC (chlorpheniramine / hydrocodone / pseudoephedrine)
- Hydrotussin HD (guaifenesin / hydrocodone / pseudoephedrine)
- Hydroxy Compound (ephedrine / hydroxyzine / theophylline)
- HylaZinc (multivitamin with minerals)
- hyoscyamine / phenobarbital
- Hyosophen (atropine / hyoscyamine / phenobarbital / scopolamine)
- Hypamine (hydrocodone / phenylpropanolamine)
- Hyphed (chlorpheniramine / hydrocodone / pseudoephedrine)
- Hyphen-HD (chlorpheniramine / hydrocodone / phenylephrine)
- Hytinic (iron polysaccharide)
- Hytussin (hydrocodone / pseudoephedrine)
- Hytussin Expectorant (guaifenesin / hydrocodone / pseudoephedrine)
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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. |
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Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.