You should not receive his medicine if you have had an allergic reaction to barbiturates. You should not receive this medicine if you are pregnant. You should not receive this medicine if you have porphyria, or certain types of liver disease or lung disease.
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
Make sure your doctor knows if you are using steroid medicine, or antibiotics such as griseofulvin or doxycycline. Tell your doctor if you are also using medicine for seizures such as phenytoin (Dilantin®), sodium valproate, valproic acid, or blood thinners such as warfarin (Coumadin®).
Make sure your doctor knows if you are using medicine for depression called MAO inhibitors (such as Eldepryl®, Marplan®, Nardil®, or Parnate®). Tell your doctor if you are also using hormones such as estradiol, estrone, or progesterone.
There are many other drugs that interact with this medicine. Make sure your doctor knows all other medicines you are using.
Do not drink alcohol while you are using this medicine.
Using this medicine while you are pregnant can harm your unborn baby. Use an effective form of birth control to keep from getting pregnant. If you think you have become pregnant while using the medicine, tell your doctor right away.
Make sure your doctor knows if you are breast feeding.
Make sure your doctor knows if you have liver disease or severe pain in any part of your body.
Make sure your doctor knows if you have severe depression or a history of drug addiction.
This medicine may make you drowsy. Avoid driving, using machines, or doing anything else that could be dangerous if you are not alert.