Some precautions and warnings with thioridazine to be aware of include potential drug interactions, the safety of taking thioridazine while pregnant, and people who should not take the drug (such as those who are allergic to thioridazine or any component used to make it). Glaucoma and an irregular heart rhythm are among the conditions that you should tell your healthcare provider about before you take thioridazine. To reduce the chances of drug interactions, you should also tell your healthcare provider about all other drugs you are taking.
Any allergies, including allergies to food, dyes, or preservatives.
Also let your healthcare provider know if you:
Are pregnant or thinking of becoming pregnant
Are breastfeeding
Have an upcoming surgery
Drink alcohol.
You should also be sure to tell your healthcare provider about all other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.