If this is an emergency right now, do not wait to read this page. Lake Hopatcong Animal Hospital is a daytime practice. We do not have overnight or after-hours emergency staffing. Go straight to one of the 24-hour hospitals below, and have someone call them on the way.
The nearest 24-hour emergency animal hospitals
Listed by distance from Lake Hopatcong. All three are open 24 hours a day, every day. Distances are approximate straight-line, so allow more for driving time.
Animal Emergency & Referral Associates
Call (973) 788-0500Open 24 hoursASPCA Animal Poison Control Center
Call (888) 426-4435Open 24 hoursHours and details above were checked in August 2026. Emergency hospitals occasionally change their hours or capacity, so if you have a moment, call before you set off.
Signs that mean go now, not in the morning
If your dog or cat is showing any of these, treat it as an emergency and head to a 24-hour hospital.
- Trouble breathing, choking, or constant coughing
- Collapse, unable to stand, or sudden weakness
- A seizure, or several in a row
- Bleeding that will not stop
- Hit by a car, a fall, or any serious injury
- Repeated vomiting or retching with nothing coming up, especially in a deep-chested dog
- A swollen, hard, painful belly
- Straining to urinate and producing nothing, particularly a male cat
- Suspected poisoning, or eating something they should not have
- Pale white or blue gums
- Difficulty giving birth
- Eye injury, or a sudden bulging or closed eye
- Severe pain, crying out, or refusing to be touched
- Heatstroke, or a very high body temperature
If you are unsure, err on the side of going. An emergency team would far rather see a pet who turns out to be fine.
What we can help with, and when
Lake Hopatcong Animal Hospital has cared for dogs and cats in this area for more than 40 years. We are a daytime practice, and we hold same-day sick-visit slots during clinic hours. If your pet is unwell but stable, call us early in the day and we will do our best to fit you in.
| Monday, Tuesday, Thursday, Friday | 8:00am to 12:00pm |
|---|---|
| Wednesday | 8:00am to 6:00pm |
| Saturday | 8:00am to 2:00pm |
| Sunday | Closed |
Outside those hours, please use one of the emergency hospitals above rather than waiting for us to open. After an emergency visit, we are glad to take over your pet’s follow-up care, and we can request the records from the emergency hospital for you.

