Question 1

how long is it supposed to it take for zantac (ranitidine) to work?

Accepted Answer

About an hour: It usually takes this long to lower the acid level in the stomach for any noticeable difference.

Question 2

given zantac (ranitidine) 150mg to take twice a day. half a tablet once a day works the same. is this ok instead of 2? male 22

Accepted Answer

Dose dependent...: Zantac (ranitidine) is an h2-blocker that comes in many strengths because the more drug you take the more effectively it modulates acid production. Full prescription dosing is 300 mg twice daily to heal acid-related injury. For relief of indigestion without injury however use the lowest dose that provides you benefit (to avoid potential side effects).

Question 3

how long it takes zantac (ranitidine) to work for gastritis?

Accepted Answer

1 hour : Or less if it's gonna work.

Question 4

had acid reflux since i was 12 (18 yrs) and only zantac (ranitidine) has worked, no other otc. it no longer works, even at 150 mg 3-4x daily. any other otc sugg?

Accepted Answer

Get re-checked. C MD: If you have chronic symptoms, and no longer getting relief from your usual meds, you need to get re-evaluated (assuming that you have been evaluated by a doc in the first place and have not just been self medicating).

Question 5

could you tell me how long will it take for ranitidine to work, as i cannot swallow thanks....?

Accepted Answer

30 minutes or so: But if you can't swallow, this pill will not help you. Besides the fact that if you can't swallow the pill won't go down, difficulty swallowing is a serious concern! you should be seen! (primary md, ent, and or GI physician).

Question 6

i am taking 40mg pantaloc twice daily while on anti inflammatories. stomach still hurts. can i take zantac (ranitidine) with this  how long before pantaloc works ?

Accepted Answer

Go see your doctor: Pantaloc is not a brand sold here in the states. By searching online, it appears to be a brand of pantoprazole, a proton pump inhibitor (ppi) which is a very effective drug to control stomach acid. Zantac (ranitidine) is an h2 blocker which is a less effective means of decreasing stomach acid. You didn't mention how long you'd been taking pantaloc which usually works in a few days. Go see your family doctor.

Question 7

is it okay to take rolaids in between my morning and nightly dose of zantac (ranitidine) during pregnancy? just taking zantac (ranitidine) alone doesn't seem to work.

Accepted Answer

Depends...: What are you treating? If just indigestion, then antacids consumed 1 ; 3 hours after a meal and at bedtime may be helpful in the majority of patients, but may be too high a dose for a pregnant one. Don't know what your zantac (ranitidine) dose is either, ; perhaps with consent from your obstetrician this medication can be optimized. Stick with gerd diet and behavior restrictions (see prior healthtap answers.

Question 8

how long will zantac (ranitidine) 150 mg take to work for gastritis? ive been taking it for 3 days no effect on me. idk the cause of gastritis just no h pylori

Accepted Answer

May take longer: I would give it  a week to work, if not, then you may need a different medication. Was this rec by your doctor?

Question 9

can i take omeprazole and zantac (ranitidine) extra strength pill together since the omeprazole doesn't work much with my gerd?

Accepted Answer

Yes, but chk it out: You can use both medications if you need them to control your significant gerd/reflux trouble, but i would advise checking it out with your doc to see why you are having such bad reflux. An infection such as helical pylori causing gastritis/ulcers? Hiatal hernia? Nonulcerative dyspepsia? Minimize alcohol, caffiene, and minty/spicy foods n don't eat before bed. Don't smoke. Consult doc. Good luck.

Question 10

real bad stomach problems the past 3 years and i take ranitidine for it everyday, and now it just doesn't work. stomach hurts everyday, should i go to doctor or maybe have biopsy done? pain is an 8

Accepted Answer

Go TO DOCTOR: You need to consult your doctor and need to change your meds from ranitidine to proton pump inhibiters like Prilosec or nexium
but you also may need a referral to gastroenterologist and may need endoscopy.

Get Virtual Care

For Businesses

About Us

HealthTap Online Primary Care Doctors Accepting New Patients

Doctor answers about:

How long does ranitidine take to work

A member asked:

How long is it supposed to it take for zantac (ranitidine) to work?

A member asked:

Given zantac (ranitidine) 150mg to take twice a day. half a tablet once a day works the same. is this ok instead of 2? male 22

A member asked:

How long it takes zantac (ranitidine) to work for gastritis?

A member asked:

Had acid reflux since i was 12 (18 yrs) and only zantac (ranitidine) has worked, no other otc. it no longer works, even at 150 mg 3-4x daily. any other otc sugg?

A member asked:

Could you tell me how long will it take for ranitidine to work, as i cannot swallow thanks....?

A member asked:

I am taking 40mg pantaloc twice daily while on anti inflammatories. stomach still hurts. can i take zantac (ranitidine) with this how long before pantaloc works ?

A member asked:

Is it okay to take rolaids in between my morning and nightly dose of zantac (ranitidine) during pregnancy? just taking zantac (ranitidine) alone doesn't seem to work.

A member asked:

How long will zantac (ranitidine) 150 mg take to work for gastritis? ive been taking it for 3 days no effect on me. idk the cause of gastritis just no h pylori

A member asked:

Can i take omeprazole and zantac (ranitidine) extra strength pill together since the omeprazole doesn't work much with my gerd?

A member asked:

Real bad stomach problems the past 3 years and i take ranitidine for it everyday, and now it just doesn't work. stomach hurts everyday, should i go to doctor or maybe have biopsy done? pain is an 8

HealthTap Online Primary Care Doctors Accepting New Patients

Telemedicine

Primary Care

Manage Your Conditions

Women's Health

Children's Health

Men's Health

Senior Health

Wellness, Prevention & Lifestyle

Sexual Health

Mental & Behavioral Health

Travel Medicine

Urgent Care

Didn't find what you're looking for?

More of what we treat

Allergies

Antibiotics

Asthma

High Blood Pressure

Prescriptions

Type 2 Diabetes

For Businesses

Company

Health Content

Join Us

Download HealthTap

Questions?