Side Effects of ChlorthalidoneAs with any medicine, side effects are possible with chlorthalidone. However, not everyone who takes the medication will experience problems. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider. Serious side effects are less common.
A few of the possible side effects of chlorthalidone include:
- Low blood potassium levels (hypokalemia) or other electrolyte imbalances
- Low blood pressure (hypotension)
- Nausea, vomiting, diarrhea, or constipation
- Sensitivity to the sun.
(Click Chlorthalidone Side Effects to learn more, including potentially serious side effects you should report to your healthcare provider.)
Drug InteractionsChlorthalidone can potentially interact with a number of other medicines (see Drug Interactions With Chlorthalidone).
What Should I Tell My Healthcare Provider?You should talk with your healthcare provider prior to taking chlorthalidone if you have:
- Liver disease, including cirrhosis
- Kidney disease or kidney failure
- Systemic lupus erythematosus (lupus or SLE)
- Fluid or electrolyte problems, especially problems with high calcium levels (hypercalcemia)
- Any allergies, including allergies to sulfa drugs, foods, dyes, or preservatives.
In addition, let your healthcare provider know if you are:
- Pregnant or trying to become pregnant (see Chlorthalidone and Pregnancy)
- Breastfeeding (see Chlorthalidone and Breastfeeding).
You should also be sure to tell your healthcare provider about all of the medicines you are currently taking, including prescription and nonprescription medicines, vitamins, and herbal supplements.
(Click Precautions and Warnings With Chlorthalidone to learn more, including information on who should not take the drug.)