Laxative
Phenolphthalein is a substance historically used as a laxative, though it has been withdrawn from many markets due to concerns that it may cause cancer. Some homeopathic products may list it for minor relief of symptoms like headaches or itching, but these claims are not supported by medical evidence.
How it worksIt was used as a laxative to help relieve constipation.
Brand names:N02 PETROCHEM
How to take
For adults and children 12 and older, the directions suggest 10 drops under the tongue three times a day, or as a professional directs.
Claims regarding headache, rash, muscle aches, itching, dizziness, confusion, or diarrhea are based on traditional homeopathic practices and are not accepted by medical evidence or evaluated by the FDA.
Key warnings
- ·This substance may cause cancer.
Side effects
Serious
- ·May cause cancer
Seek help if
- ·If you have concerns about cancer risks associated with this drug.
Special populations
PediatricConsult a doctor before using this product in children under 12 years of age.
Talk to your doctor
Monitor
- ·Signs of cancer or long-term health changes
Questions to ask
- ·Is Phenolphthalein safe given the cancer warnings?
- ·Are there safer alternatives for my constipation?
- ·Should I avoid Phenolphthalein due to its homeopathic claims?
Educational summary derived from FDA labeling, AI-assisted. Not medical advice — consult a healthcare professional. Updated 2026-04-26.