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Sentry HC Petromalt Hairball Relief for Cats is an intestinal lubricant with an irresistible malt flavor. Sentry HC Petromalt Hairball Releif for Cats aids in the elimination of swallowed hair and the prevention of hairballs. Sentry HC Petromalt Hairball Relief for Cats also helps relieve constipation, dry cough and occasional vomiting associated with certain gastrointestinal blockages.

Kills fleas, ticks, flea eggs, and larvae. Continuous flea protection for 7 months.

The exclusive formulations that feature these ingredients are harmless to mammals, birds and fish - but they're deadly to biting pests. This means SENTRY Natural Defense products are highly effective, yet they're safe for use around your pets and your family when used as directed.

The exclusive formulations that feature these ingredients are harmless to mammals, birds and fish - but they're deadly to biting pests. This means SENTRY Natural Defense products are highly effective, yet they're safe for use around your pets and your family when used as directed.

The exclusive formulations that feature these ingredients are harmless to mammals, birds and fish - but they're deadly to biting pests. This means SENTRY Natural Defense products are highly effective, yet they're safe for use around your pets and your family when used as directed.

The exclusive formulations that feature these ingredients are harmless to mammals, birds and fish - but they're deadly to biting pests. This means SENTRY Natural Defense products are highly effective, yet they're safe for use around your pets and your family when used as directed.

The exclusive formulations that feature these ingredients are harmless to mammals, birds and fish - but they're deadly to biting pests. This means SENTRY Natural Defense products are highly effective, yet they're safe for use around your pets and your family when used as directed.

The exclusive formulations that feature these ingredients are harmless to mammals, birds and fish - but they're deadly to biting pests. This means SENTRY Natural Defense products are highly effective, yet they're safe for use around your pets and your family when used as directed.

The exclusive formulations that feature these ingredients are harmless to mammals, birds and fish - but they're deadly to biting pests. This means SENTRY Natural Defense products are highly effective, yet they're safe for use around your pets and your family when used as directed.

The exclusive formulations that feature these ingredients are harmless to mammals, birds and fish - but they're deadly to biting pests. This means SENTRY Natural Defense products are highly effective, yet they're safe for use around your pets and your family when used as directed.