Cats and kittens ingest their hair as a result of self-grooming. The hair may accumulate in the stomach and form hairballs. Signs of hairballs are coughing, vomiting, gagging and constipation. Hairballs can be prevented by frequent grooming. Aristopet Laxative for cat aids in the relief of hairballs and mild constipation. Highly palatable, easy to apply. Prolonged use may cause certain vitamin deficiencies, consult your veterinarian if symptoms persist.