Smoking changes how the body reacts to many medicines. Some drugs don't work as well or must be given in higher doses if you smoke. This is not surprising, since tobacco smoke contains thousands of chemicals that can affect the body and the way it reacts to medicines.
Here is a list of some medicines affected by smoking. Are you taking any of these? Ask your doctor or pharmacist about how smoking and quitting affects these and any other medicines you are taking. [NOTE: Links are provided to some medicines as reference only, and should not be used as substitutes for medical information provided by your doctor or pharmacist.]
| Prescribed for | Trade Name | Generic Name |
| High Blood Pressure* Chest Pain (Angina)* Irregular Heartbeats* Migraine Headaches* |
INDERAL® | Propranolol |
| Asthma,* Bronchitis,* Emphysema* |
THEO-DUR®, RESPBID®, SLO-BID®, QUIBRON®T, SLO-PHYLLIN®, and others PHYLLOCONTINE®, |
Theophyline   Aminophylline |
| Diabetes* |   | Insulin |
| Arthritis | BUTAZOLIDIN® | Phenylbutazone |
| Pain | DARVON® TALWIN® |
Propoxyphene Pentazocine |
| Depression | ELAVIL® TOFRANIL® NORPRAMIN® ANAFRANIL® |
Amitriptyline Imipramine Desipramine Clomipramine |
| Anxiety, Tension, Insomnia | LIBRIUM®, LiBRAX® SK-LYGEN®, LMBITROL® MENRIUM® VALIUM® ATIVAN® SERAX® TRANXENE® |
Chlordiazepoxide     Diazepam Lorazepam Oxazepam Clorazepate |
| Psychosis | CLOSARIL® HALDOL® MODECATE®, PERMITIL®, PROLIXIN® |
Clozapine Haloperidol Fluphenazine   |
| Other | ESTRACE®, PREMARIN®, ESTRATEST®, and others |
Estradiol   |