Before taking propranolol,
tell your doctor and pharmacist if you are allergic to propranolol, any other medications, or any ingredients in propranolol products. Ask your pharmacist or check the Medication Guide for a list of the ingredients.
tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention any of the following: ACE inhibitors; antacids containing aluminum (Maalox, Mylanta, others); anticoagulants (''blood thinners'') such as warfarin (Coumadin, Jantoven); calcium channel blockers such as diltiazem (Cardizem, Cartia, Tiazac, others), nicardipine (Cardene), nifedipine (Adalat, Procardia XL), and nisoldipine (Sular); cholestyramine (Prevalite); cimetidine; ciprofloxacin (Cipro); chlorpromazine; colestipol (Colestid); diazepam (Diastat, Valium); digoxin (Lanoxin); fluvoxamine (Luvox); haloperidol (Haldol); HMG-CoA reductase inhibitors (cholesterol-lowering agents) such as lovastatin (Altoprev, Mevacor, in Advicor) and pravastatin (Pravachol); isoniazid (in Rifamate, in Rifater); medications for depression such as bupropion (Aplenzin, Forfivo XL, Wellbutrin, Zyban), fluoxetine (Prozac, Sarafem, Selfemra), imipramine (Tofranil), and paroxetine (Brisdelle, Paxil, Pexeva); fluconazole (Diflucan); medications for migraine headaches such as rizatriptan (Maxalt) and zolmitriptan (Zomig); medications for high blood pressure such as clonidine (Catapres, Kapvay, in Clorpres), doxazosin (Cardura), prazosin (Minipress), and terazosin; medications for seizures such as phenytoin (Dilantin, Phenytek) and phenobarbital; certain medications for irregular heartbeats such as amiodarone (Cordarone, Nexterone, Pacerone), propafenone (Rythmol), and quinidine (in Nuedexta); monoamine oxidase (MAO) inhibitors such as phenelzine (Nardil); montelukast (Singulair); nonsteroidal anti-inflammatory drugs (NSAIDs) such as indomethacin (Indocin, Tivorbex); theophylline (Theo-24, Theochron, Uniphyl); reserpine; rifampin (Rifadin, Rimactane, in Rifater, in Rifamate); ritonavir (Norvir, in Kaletra, in Viekira Pak); teniposide (Vumon); thioridazine; ticlopidine; tolbutamide; tricyclic antidepressants; and zileuton (Zyflo). Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
tell your doctor if you have or have ever had asthma or other lung disease; heart, liver, or kidney disease; diabetes; severe allergies; or thyroid problems.
tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking propranolol, call your doctor.
if you are having surgery, including dental surgery, tell the doctor or dentist that you are taking propranolol.
ask your doctor about the safe use of alcoholic beverages while you are taking propranolol. Alcohol may increase the amount of propranolol in your body.
tell your doctor if you use tobacco products. Cigarette smoking may decrease the effectiveness of this medication.