Aspirin and vitamin C are both acidic drugs, and taking them at the same time will inhibit each other's excretion. Aspirin, as a cardiovascular drug, has little effect when taken together with vitamin C in a small dose, but if it is used as an analgesic in a large dose, vitamin C should be taken first, and the dose can be appropriately increased, and the two should be taken two hours apart.

2. Sulfonamides

Vitamin C is acidic, and sulfanilamide drugs and their metabolites are easy to generate sulfanilamide crystals in acidic environment, leading to urinary calculi and kidney damage. Fang said that sulfonamides have been used in clinic for a long time, and now they will only be used if necessary. If you must take it with vitamin C, it is best to take it every two hours.

3. Folic acid

Taking vitamin C together with folic acid can inhibit the absorption of folic acid in the gastrointestinal tract. A large amount of vitamin C will accelerate the excretion of folic acid and weaken the efficacy. So you can take folic acid first, and then take vitamin C two hours later.

4. Anticoagulant

Vitamin C will affect the anticoagulant effect of heparin and warfarin, shorten prothrombin time and weaken the effect of anticoagulant drugs. Heparin drugs are mainly used in hospitals, but many patients will take warfarin at home, and taking a large amount of vitamin C will have adverse reactions, so pay attention to the interval of medication.

5, alkaline drugs

Vitamin C is extremely unstable and easily destroyed in neutral or alkaline solution, losing its physiological function. Therefore, there is incompatibility between vitamin C and alkaline drugs, and both of them are easy to neutralize acid and alkali, which weakens or disappears the efficacy. Different intravenous injection routes can be established, and they can also be taken at intervals. It is particularly important not to take alkaline drugs with vitamin C effervescent tablets.

6. Vitamin K 1

Vitamin K 1 is oxidizing and vitamin c is reducing. The compatibility of the two drugs can produce redox reaction, weaken or disappear the curative effect, and it is easy to appear turbidity, which is a taboo for compatibility. In addition, taking vitamin C and vitamin B 12 together will have a great impact even if the dose is small. Mecobalamin drugs also belong to vitamin B 12, and it is also recommended to take them at intervals.

Extended data:

Foods that can promote the absorption of vitamin c:

1, vinegar

Vinegar can prevent vitamin C from being destroyed. Adding vinegar when cooking can not only make the dishes crisp and delicious, but also prevent vitamin C from being destroyed. Therefore, it is a good choice to add vinegar when frying shredded potatoes and bean sprouts.

In addition, organic acids such as citric acid in fruits can also protect vitamin C. For example, adding a slice of lemon when squeezing fruit and vegetable juice can reduce the loss of vitamin C to some extent.

2. Starch

Starch also has a certain protective effect on vitamin C, which is why the loss of vitamin C is not serious after potatoes are cooked. Thickening can also play a similar role in cooking.

Step 3 be interesting

Spices are rich in polyphenols and flavonoids and have strong antioxidant capacity. Adding it to the wok can not only increase the flavor, but also slow down the oxidation of oil at high temperature and protect the nutritional components such as vitamin C in vegetables.

People's Health Network-Vitamin C has many "nemesis"

People's health network-reasonable collocation ensures the intake and absorption of vitamin C.