Precautions and Warnings With Pseudoephedrine
With pseudoephedrine, there are certain precautions and warnings to be aware of before starting the medication. For example, pseudoephedrine can cause problems in people with glaucoma, an enlarged prostate, diabetes, hyperthyroidism, or kidney disease, so be sure to talk to your healthcare provider if you have any of these conditions. You should not take pseudoephedrine if you have narrow angle glaucoma or difficulty passing urine.
You should talk with your healthcare provider prior to taking pseudoephedrine if you have:
- Difficult passing urine
- High blood pressure (hypertension)
- Heart disease
- An overactive thyroid (hyperthyroidism)
- An enlarged prostate (also known as benign prostatic hyperplasia, or BPH)
- Kidney disease, such as kidney failure (renal failure)
- Any allergies, including allergies to food, dyes, or preservatives.
Also, let your healthcare provider know if you are:
- Pregnant or thinking of becoming pregnant
Make sure to tell your healthcare provider about any other medications you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
Warnings and precautions to be aware of prior to taking pseudoephedrine include the following:
- Pseudoephedrine can cause problems in people with glaucoma, an enlarged prostate, diabetes, hyperthyroidism, or kidney disease. If you have one of these conditions, do not take pseudoephedrine without checking with your healthcare provider first.
- Pseudoephedrine can worsen high blood pressure (especially high blood pressure that is not well-controlled with medications or other treatments). Pseudoephedrine can also increase the heart rate or cause heart palpitations. If you have high blood pressure or heart disease, check with your healthcare provider before taking pseudoephedrine.
- Pseudoephedrine interacts with some medications. Some of these interactions can be quite dangerous (see Drug Interactions With Pseudoephedrine for more information).
- Pseudoephedrine is considered a pregnancy Category C medication. This means that it might not be safe for use during pregnancy, although the full risks are not currently known (see Sudafed and Pregnancy).
- Pseudoephedrine passes through breast milk. Therefore, if you are breastfeeding or plan to start breastfeeding, be sure to talk with your healthcare provider before using pseudoephedrine (see Sudafed and Breastfeeding).